Events & Seminars

Upcoming Events & Seminars

Covalent Inhibition of Proteins with Tunable Electrophiles

Jack Taunton Presents:

Thursday April 17th, 2014 at Noon in MRB 312

Proton Transport in Aqueous and Biomolecular Systems: Insights and Surprises from Computer Simulation

Professor Gregory A. Voth Presents:

Thursday April 17th, 2014 at 4:00 PM in Chemistry A101

The hydrated excess proton plays a critical role in many areas of chemistry, biology, and materials science. Despite playing the central role in fundamental chemical (e.g., acid-base) and biological (e.g., bioenergetics) processes, the nature of the excess proton remains mysterious, surprising, and sometimes misunderstood. In this lecture my group’s longstanding efforts to characterize proton solvation […]

Nitrous oxide in a sustainable Earth: the backbencher in the “environmental game” and the unwanted byproduct of human activities

A.R. "Ravi" Ravishankara Presents:

Friday April 18th, 2014 at 4:00 PM in Chemistry A101


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Nicholas White Presents:

Monday April 21st, 2014 at 4:00 PM in Chemistry A101

Micro- and Nanofabricated Chemical Measurement Technology

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J. Michael Ramsey, HACH Distinguished Lecturer Presents:

Thursday April 24th, 2014 at 4:00 PM in Chemistry A101

The first report of micromachined devices that emulate the functions of laboratory chemical instrumentation, i.e., the silicon gas chromatograph (GC) occurred over three decades ago.  Due largely to the modest performance of these early devices, further developments in microelectromechanical systems (MEMS) based chemical instrumentation were slow to materialize.  Microfabricated fluidic devices that accomplished chemical measurement […]

The Design of Metal-Based Polypyridine Catalysts for Artificial Photosynthesis

Randy Thummel Presents:

Friday April 25th, 2014 at 4:00 p.m. in Chemistry A101

Synthetic Versatility of N–O Bond Rearrangements

Laura L. Anderson Presents:

Monday April 28th, 2014 at 4:00 PM in Chemistry A101

Senior/Awards Banquet

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Wednesday April 30th, 2014 at 6:00 PM in Hilton Fort Collins, Green and Gold Room

Senior/Awards Banquet Department of Chemistry Colorado State University   Questions? Please contact Cindy Ungerman at 970-491-1090 or

Recent Advances in the Design of Nanoporous, Lyotropic Liquid Crystal Polymer Membranes for Enhanced Separation and Transport Applications

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Professor Douglas L. Gin Presents:

Friday May 2nd, 2014 at 4:00 PM in Chemistry A101

The ability to fabricate porous polymer membrane materials that can separate molecular mixtures cleanly based solely on differences in molecular size or shape is a long-sought-after goal in membrane science.  The design of ordered polymers with uniform, nanometer-scale pores based on cross-linked lyotropic (i.e., surfactant or amphiphilic) liquid crystals (LLCs) for molecular size-selective separations of […]


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Nathan Bair Presents:

Monday May 5th, 2014 at 4:00 PM in Chemistry A101

Past Events & Seminars

The Structural Basis of Ligand Exchange on Gold Nanoclusters

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Thomas Ni Presents:

Tuesday April 15th, 2014 at 4:00 PM in Chemistry A101

Combining Organic Synthesis and Directed Evolution to Design HIV Vaccine Candidates

Isaac Krauss Presents:

Monday April 14th, 2014 at 4:00 PM in Chemistry A101

Measuring in vivo protein dynamics and concentration to monitor proteostasis

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Professor John C. Price Presents:

Wednesday April 9th, 2014 at 4:00 PM in Chemistry A101

Life is by definition dynamic.  Living cells are constantly synthesizing and catabolizing molecules.  Effective antimicrobial strategies include inhibiting either synthesis or degradation of protein, suggesting that this constant flux of biomolecules is critical to cell viability.  We have developed methods to measure flux of protein and other molecules in vivo, by measuring the in vivo replacement […]

Tuning Electronic Properties of Azulene and Perylenediimides with Electron Withdrawing Groups

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Tyler Clikeman Presents:

Tuesday April 8th, 2014 at 4:00 PM in Chemistry A101

Unconventional Strategies to Suppress the Rise of Antibiotic Resistance

Doug Mitchell Presents:

Monday April 7th, 2014 at 4:00 PM in Chemistry A101

Making Sense of Voltage Sensing by Voltage-Gated Ion Channels

Professor Douglas Tobias Presents:

Thursday April 3rd, 2014 at 4:00 PM in Chemistry A101

Electrical signals (action potentials) in excitable tissues such as nerves and muscles are generated by the synchronized opening and closing of ion channels in cell membranes, which generate transient gradients in transmembrane concentration of sodium and potassium ions. These channels open and close in response to local changes in transmembrane potential as the signal propagates, […]

Palladium and Copper-Catalyzed Methodology of use in Organic Synthesis: From Fundamentals to Applications

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Stephen Buchwald Presents:

Monday March 31st, 2014 at 4:00 PM in Chemistry A101

Single Molecule Techniques to Study Interactions in Small Clusters of Quantum Dots

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Kevin Whitcomb Presents:

Thursday March 27th, 2014 at 4:00 PM in Chemistry A101

Semiconductor nanocrystals (quantum dots) have promising uses in applications that utilized high densities, or otherwise close proximity quantum dots, such as photovoltaics1, lasing2, and fluorescence microscopy3. It is possible for interactions between quantum dots, such as excited state energy transfer, to influence the function or interpretation of performance in these devices/applications. For this reason, we […]

Actinide Separation Advances: Improving the Security and Efficiency of Next Generation Nuclear Fuel Cycles

Jenifer C. Braley Presents:

Tuesday March 25th, 2014 at 4:00 PM in Chemistry A101

Among other desirable features, a nuclear fuel cycle should include efficient actinide partitioning and transmutation (P&T) strategies, appropriatenuclear forensics protocols for actionable intelligence and layers of proliferation resistance to minimize the need for actionable intelligence.   Actinide separations, both industrial and analytical scale, can serve to advance technology in each of the aforementioned areas.  One area […]

Natural Transition Orbitals: Giving Physical Insight to Orbitals with Applications in Photocatalysis

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Collette MIdkiff Presents:

Thursday March 13th, 2014 at 4:00 PM in Chemistry A101

 Photocatalysis is a growing field in chemistry due to photocatalysts’ innate ability to harness energy from visible light, to drive thermodynamically or kinetically unfavorable reactions.1 Applications of photocatalysts range from organic synthesis to liquid fuel generation from CO2. Ruthenium(II) tris(2,2’-bipyridine) ([Ru(bpy)3]2+) has been studied extensively as a photocatalyst due to its chemical stability, broad absorption […]

Liquid electron microscopy and nanopore sensing: Two portals to the molecular world

Professor Jason Dwyer Presents:

Wednesday March 12th, 2014 at 4:00 PM in Chemistry A101

The ability to probe nanoscale structure and interaction is essential to understanding the molecular world and to subsequently developing applications. Transmission electron microscopy (TEM) has proven to be a tremendously powerful tool for revealing the nanoscale structure of fixed samples, but the ability to directly probe native structures in solution and to probe solution structural […]

Recent Advances in Frustrated Lewis Pair Chemistry

Doug Stephan Presents:

Tuesday March 11th, 2014 at 4:00 PM in Chemistry A101

Sponsor: Dow Lecture on Sustainable Chemistry

Synthetic Discoveries from Polycyclic Natural Products

Jeremy May
Jeremy May Presents:

Monday March 10th, 2014 at 4:00 PM in Chemistry A101

New advances in the construction of C-N and C–O bonds for organic synthesis

Javier Read de Alaniz Presents:

Monday March 3rd, 2014 at 4:00 PM in Chemistry A101

Ultraviolet Spectroscopy and Photochemistry of Criegee Intermediates

Prof. Marsha I. Lester Presents:

Thursday February 27th, 2014 at 4:00 PM in Chemistry A101

Ozonolysis of alkenes in the troposphere proceeds through Criegee intermediates, or carbonyl oxides, which have only recently been detected in the gas phase.  This laboratory has focused on the production of the simplest (CH2OO) and several alkyl-substituted Criegee intermediates in a pulsed supersonic expansion, and then utilizes VUV photoionization at 118 nm and UV-induced ground-state […]

Electrolyte systems based on B12F122− for energy generation and storage devices

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Eric Bukovsky Presents:

Tuesday February 25th, 2014 at 4:00 PM in Chemistry A101

Organic Photoredox Catalysis: Methods and Mechanistic Insight

David Nicewicz
David Nicewicz Presents:

Monday February 24th, 2014 at 4:00 PM in Chemistry A101

Controlling the ultrafast reaction dynamics of a photochromic molecular switch

Prof. Christopher Elles Presents:

Thursday February 20th, 2014 at 4:00 PM in Chemistry A101

We use ultrafast laser pulses to study and control the excited-state dynamics of a photochromic molecular switch. This compound undergoes a reversible electrocyclization reaction that dramatically changes the electronic and optical properties of the molecule. Our experiments probe the non-adiabatic dynamics of both the forward and reverse reactions. For example, we use a pump-repump-probe technique […]

Tomography – Undertanding Complex Nanostructures Utilizing Automated Tilt-series Acquisition for Both TEM and STEM Imaging

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Kevin McIlwrath Presents:

Thursday February 20th, 2014 at 3:00 PM in Chemistry B202

Spatiotemporal Molecular Mapping of Biological Systems Utilizing Microfluidics and Electrochemical Methods

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John B. Wydallis Presents:

Wednesday February 19th, 2014 at 4:00 PM in Chemistry A101

Molecular gradients drive a multitude of biological processes including phenomena such as chemotaxis,1 neuronal growth, and ovulation.2 These biological gradients can be probed using techniques including fluorescence microscopy, mass spectrometry, and electrochemistry.1 Challenges still exist in our ability to image these chemical gradients including the types of molecules that can be observed, the spatial and […]

CB11 carboranes: recent advances and applications

Josef Michl Presents:

Tuesday February 18th, 2014 at 4:00 PM in Chemistry A101

Sponsor: Boulder Scientific

Homogeneous Gold Catalysis: Reactivity Discovery and Methodology Development

Liming Zhang Presents:

Monday February 17th, 2014 at 4:00 PM in Chemistry A101

Matrix Isolation FTIR Spectroscopy of Anionic Copper Complexes Stabilized via Co-deposition of Explicit Counter-cations: Opening up New Avenues of Inquiry Using an Old Technique

Prof. David T. Moore Presents:

Thursday February 13th, 2014 at 4:00 PM in Chemistry A101

Matrix isolation spectroscopy was first developed by Pimentel in the 1950’s to facilitate spectroscopic studies of transient species.[1]  Cryogenic matrices of condensed rare gases provide an inert chemical environment with facile energy dissipation and are transparent at all wavelengths longer than vacuum UV, making them ideal for studying labile and reactive species such as radicals, […]

A “Mohawk” Fullerene With a Competitive Nature

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Long San Presents:

Wednesday February 12th, 2014 at 4:00 PM in Chemistry A101

Fullerenes and fullerene derivatives have attracted much attention due to their interesting optical, physical, and electronic properties. For example, further chemical elaborations of fullerenes possessing cyclo‐adducts (i.e., phenyl‐C61‐butyric acid methyl ester, PCBM,1 and mono‐indene-C60, ICMA2) have shown promising use in photovoltaic energy conversion. Mono‐hydrofullerenes, C60RH, were shown as effective synthons for novel molecules3 with interesting […]

Redox-Neutral C–H Functionalization of Amines

Dan Seidel Presents:

Monday February 10th, 2014 at 4:00 PM in Chemistry A101

Sponsor: Lilly

Protein Folding Studied with 13C Isotopically Edited Infrared Spectroscopy

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Professor Jan Kubelka Presents:

Thursday February 6th, 2014 at 4:00 PM in Chemistry A101

Understanding how proteins fold is one of the most important unsolved problems in molecular biophysics. The obstacles for elucidating the folding mechanism arise from the complexity of protein structures and structural transitions, which are difficult to characterize using standard experimental methods. To address these challenges, we focus on the simplest possible helical proteins – helix-turn-helix […]

Aspects of Technetium Chemistry for Nuclear Waste Management

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Prof. Nathalie A. Wall Presents:

Wednesday February 5th, 2014 at 4:00 PM in Chemistry A101

As part of the 6% of the 99 isobar for thermal fission yield of each uranium-235 and plutonium-239, technetium presents a significant problem for nuclear waste management, particularly for contaminated site remediation.  The highly soluble and environmentally mobile Tc(VII) (as pertechnetate oxyanion, TcO4-) is the most stable Tc species under natural oxic conditions, in spite […]

First steps into tandem asymmetric catalysis by chiral metal-organic frameworks

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Fernando Vidal-Pena Presents:

Tuesday February 4th, 2014 at 4:00 PM in Chemistry A101

Polymer Mechanochemistry and Self-Healing Materials

Jeffrey Moore Presents:

Monday February 3rd, 2014 at 4:00 PM in Chemistry A101

Sponsor: Organic Syntheses

Challenges in computational material design for organic photovoltaic active layer materials: From molecular electronic structure to film morphology

Ross Larsen Presents:

Thursday January 30th, 2014 at 4:00 PM in Chemistry A101

Organic photovolataic devices have seen remarkable gains in power conversion efficiency (PCE) over the last four years, with reported efficiencies for laboratory-scale devices approaching and exceeding 10% with increasing regularity. Much of the improvement can be attributed to improved active layer materials that simultaneously have low band gaps, so as to absorb more light from […]

New Strategies for Rapid and Reproducible Sample Preparation in Biological Mass Spectrometry

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Professor Franco Basile Presents:

Wednesday January 29th, 2014 at 4:00 PM in Chemistry A101

In the area of Mass Spectrometry (MS) advances in instrumentation have outpaced developments in sample preparation techniques.  Thus, it is common to encounter experimental procedures where a biological sample needs to be pre-processed for several hours or days in order to be analyzed by a 10 min MS measurement.  This situation becomes more critical in […]

A New Class of Catalysts for Enantioselective Organic Reactions: Metal-Containing Chiral Hydrogen Bond Donors

John Gladysz Presents:

Tuesday January 28th, 2014 at 4:00 PM in Chemistry A101


Understanding Ubiquitin Signaling Using Chemical Tools

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Eric Strieter Presents:

Monday January 27th, 2014 at 4:00 PM in Chemistry A101

Reverse-engineering information circuits in chemotaxing neutrophils

Steven Altschuler Presents:

Thursday January 23rd, 2014 at noon in Library Event Hall

Frequency-Resolved Optical Gating (FROG)

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Kathryn Tracy Presents:

Thursday January 23rd, 2014 at 4:00 PM in Chemistry A101

In order to resolve the action in any fast event, it is required that the window you are sampling be narrower than the window of the event of interest.  This becomes a problem when the event that needs to be measured is an ultrashort light pulse.  These pulses are on the order of a few […]

Coupling Microfluidics with IR Spectroscopy for the Real Time Investigation of Chemical Systems

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Brynson Lehmkuhl Presents:

Wednesday January 22nd, 2014 at 4:00 PM in Chemistry A101

The development of microfluidics has extended the range of techniques available for chemical and biological analysis by introducing novel methods with a variety of advantages.1 Microfluidic  fabrication methods are simple and low cost, using polymers or silicon materials as the substrate. Photolithography has allowed the manufacturer to have complete control over the design of the […]

Life at the Single Molecule Level

Sunney Xie Presents:

Thursday January 16th, 2014 at Noon in MRB 312

Collaborative Research with CSU: I. Breaking Phenotypic and Genotypic Antibiotic Resistance in Mycobacterium Tuberculosis and II. Designer Gold Nanoparticles for Biomedical Applications

Christian Melander Presents:

Monday January 13th, 2014 at 4:00 PM in Chemistry A103

Synthesizing Quantum Confined Nanocrystalline Semiconductors for Maximum Charge Carrier Multiplication

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Kerry Rippy Presents:

Tuesday December 3rd, 2013 at 4:00 PM in Chemistry A101

Abstract: Maximizing carrier multiplication in nanocrystalline semiconductors by manipulating physical properties including composition, shape, and surface functionalization is currently an active area of research. Charge carrier multiplication, also known as multiple exciton generation, is the process whereby a single photon with sufficient energy may excite more than one electron in a semiconductor. This results in […]

Amorphous Solid Dispersions for Delivery of Low Solubility Drugs

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Dr. Corey Bloom Presents:

Friday November 22nd, 2013 at 4:00 PM in Chemistry A101

Approximately 60% to 70% of drug molecules in pharmaceutical development programs today suffer from low solubility, and thus low and variable oral absorption.  Amorphous spray dried dispersions (SDDs) have emerged as a broadly applicable technology to improve delivery of these poorly soluble drug molecules.  Methods for formulating and predicting the physical stability of amorphous dispersions […]

Synthetic Design Tools for Complex Inorganic Solids and Nanostructures

Raymond Schaak Presents:

Thursday November 21st, 2013 at 4:00 PM in Chemistry A101

Molecular control of nanoscale composition, morphology and function: From compositionally graded nanorods to surface doped quantum dots

Javier Vela Presents:

Tuesday November 19th, 2013 at 4:00 PM in Chemistry A101

Part I. The exact composition, size and morphology of semiconductor nanocrystals precisely determine their opto-electronic properties (band gap, exciton lifetime and decay pathways, carrier mobility). While researching the synthesis of binary CdE nanocrystals and their ternary CdE-CdE’ alloys (E, E’ = S, Se), we found that the relative ease of formation of different nanocrystalline phases […]

On the Merits of Pursuing Stereoerrors in Natural Product Synthesis

Jeffrey Johnson Presents:

Monday November 18th, 2013 at 4:00 PM in Chemistry A101

Sponsor: BMS

Tuning Silica Aerogel Backbones for Enhanced Mechanical and Physical Properties for Space Applications

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Jarid M. Metz Presents:

Friday November 15th, 2013 at 4:00 PM in Chemistry A101

Silica aerogels have been realized as exceptional thermal insulating materials.1 However, the brittle nature of these materials has rendered them unattractive for many potential applications.  Improving the mechanical properties of these systems is extremely desired.  Polymer reinforcement of silica aerogels has recently shown promising progress in affording stronger and more flexible aerogels.  Many polymer systems […]

PreQ1 riboswitches utilize diverse modes of pyrrolopyrimidine recognition for gene regulation

Joseph Wedekind Presents:

Thursday November 14th, 2013 at Noon in MRB 312

Studies of Structure and Dynamics of Biomolecular Complexes by Single Molecule and Two-Dimensional Fluorescence Spectroscopy (2DFS)

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Prof. Andrew Marcus Presents:

Thursday November 14th, 2013 at 4:00 PM in Chemistry A101

Local soft interactions between proteins, nucleic acids, sugars and lipids greatly influence the properties of biological macromolecules, affecting biomolecular complex stability, as well as the barriers to their function. Using two-dimensional fluorescence spectroscopy, we have determined three-dimensional shapes, or local conformations, adopted by electronically coupled molecular dimers in biological systems. Our studies probing square-shaped metal […]

Isoprene Secondary Organic Aerosol Intermediates: Reliable or Operationally Defined Results

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Trey Murschell Presents:

Wednesday November 13th, 2013 at 4:00 PM in Chemistry A101

Isoprene is the largest non-methane hydrocarbon biogenic emission, contributing 500 Tg of carbon per year to the overall carbon budget of the atmosphere.1 Subsequently, isoprene plays an important role in the growth of secondary organic aerosol (SOA). SOA are of considerable importance due to significant human health and climate impacts. However, the role of isoprene […]

A new mass spectrometry technique for the molecular characterization of organic matter at mineral interface

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Ellen Daugherty Presents:

Wednesday November 13th, 2013 at 4:00 PM in Chemistry A101

Soil organic matter (SOM) comprises a huge pool of global carbon, three times that stored in the atmosphere or terrestrial vegetation.1 As a complex mixture of natural organic molecules, SOM plays an important role in the global cycling and local availability of nutrients, as well as in the fate and transport of both organic and […]

Strategic Design of Chromophores to Clarify Key Reactions Steps in the Dye-Sensitized Solar Cell

Curtis Berlinguette Presents:

Tuesday November 12th, 2013 at 4:00 PM in Chemistry A101

Triarylamine-appended bis(tridentate) cycloruthenated chromophores are capable of producing high power conversion efficiencies in the dye-sensitized solar cell (DSSC).1,2  This class of dyestuff offers unprecedented control of intramolecular electron transfer at TiO2 surfaces, which has revealed new insights into the undesirable interfacial recombination reaction of the injected electrons with the oxidized compounds, including a significant enhancement […]

Processing and decay by the RNA exosome

Chris Lima Presents:

Thursday November 7th, 2013 at Noon in MRB 312

Coherent Raman Scattering in the Single Molecule Limit

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Professor Eric Potma Presents:

Thursday November 7th, 2013 at 4:00 PM in Chemistry A101

Single molecules spectroscopy experiments have led to important new insights in molecular dynamics. In particular, information about the conformational motions of individual molecules can be extracted from fluctuations in the fluorescence response, on timescales down to tens of microseconds. Faster timescales, which are relevant to the vibrations of molecular bonds, have so far remained out […]

Enantioselective Hydroformylation Catalysts: Synthesis, Applications, and Mechanism

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Clark Landis Presents:

Tuesday November 5th, 2013 at 4:00 PM in Chemistry A101

Critical attributes of green chemical processes include high atom economy, catalytic use of expensive reagents, selectivity, building complexity from simplicity, and simple separations.  Enantioselective hydroformylation — by which enantiopure transition metal complexes selectively catalyze the conversion of simple alkenes, dihydrogen, and carbon monoxide into chiral aldehydes — possesses many of these attributes.  Our construction of […]

Accessing and Harnessing Metalated Intermediates toward Synthetic Utility

Eric M. Ferreira Presents:

Monday November 4th, 2013 at 4:00 PM in Chemistry A101

The Effect of Point Defects on Piezoelectric One-Dimensional Zinc Oxide Nanostructures

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Dan Agocs Presents:

Friday November 1st, 2013 at 4:00 PM in Chemistry A101

  Piezoelectric materials, which transfer mechanical to electrical energy (and vice versa), are ubiquitous in everyday life finding uses in a wide array of applications ranging from inkjet printers to loudspeakers. Currently, the field is headed in two major directions: finding lead-free alternatives to lead zirconate titanate, and nanoscaling piezoelectric materials to improve their properties. […]

Magnetic Heating of Superparamagnetic Iron Oxide Nanoparticles

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Christian Collins Presents:

Thursday October 31st, 2013 at 4:00 PM in Chemistry A101

Magnetic nanoparticles (NPs) are useful for many biomedical applications including magnetic resonance imaging (MRI), targeted drug delivery and hyperthermia1.  Local hyperthermia, the remote generation of localized heat, is potentially the most significant of these applications. It may revolutionize cancer treatment through thermal destruction of cancer cells in malignant tumors without damaging the surrounding healthy tissue2. […]

Transition metal-catalyzed C-C single bond activation: Mechanistic understanding leading to new reactivity

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Jeff B. Johnson Presents:

Monday October 28th, 2013 at 4:00 PM in Chemistry A101

Probing Electronic Structures Using High Harmonic Generation Tomography

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Chelsey Crosse Presents:

Thursday October 24th, 2013 at 4:00 PM in Chemistry A101

      The electronic structure dictates the chemical properties of all molecules, but until recently our understanding of molecular electronic structure through molecular orbitals has relied on purely mathematical constructions. However, recent developments in high harmonic generation (HHG) tomography have permitted visualization of molecular orbitals with unprecedented ångstrom resolution. Using the interaction of high intensity, low […]

Comprehensive Laboratory Studies of the Chemistry of Secondary Organic Aerosol Formation

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Prof. Paul Ziemann Presents:

Wednesday October 23rd, 2013 at 4:00 PM in Chemistry A101

Laboratory studies provide much of the fundamental data on reaction kinetics, products, and mechanisms that are needed to achieve a deep understanding of atmospheric chemistry and to develop detailed and accurate models that are used to establish air quality regulations and to predict the effects of human activities on global climate. In this talk I […]

A Study of Magnetostructural Parameters Related to Spin Crossover and Single Molecule Magnetism

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Stephanie Fiedler Gleich Presents:

Tuesday October 22nd, 2013 at 4:00 PM in Chemistry A101

Design and applications of selective olefin metathesis catalysts

Bob Grubbs Presents:

Friday October 18th, 2013 at 4:00 PM in Chemistry A101

Evaluation of Metal Organic Frameworks and Polymers as Nitric Oxide Biomaterials

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Melissa M. Reynolds Presents:

Wednesday October 16th, 2013 at 4:00 PM in Chemistry A101

A prevailing challenge in biomaterials research is controlling interactions at the interface between a synthetic material and the surrounding physiological milieu.  When considering medical device applications, this biointerface governs whether or not a medical device will integrate into the body in a healthy manner.  When medical devices are placed, surface interactions are complicated by damage […]

Privileged RNA scaffolds for in vivo function

Ming Hammond Presents:

Monday October 14th, 2013 at 4:00 PM in Chemistry A101

Time Dependent Density Functional Theory to Illuminate the Excited State Properties of Retinal

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Collette Midkiff Presents:

Thursday October 10th, 2013 at 4:00 PM in Chemistry A101

Biochromophores are an important class of molecules that are responsible for absorption of visible light, catalyzing many biological processes. Protonated Schiff-base retinal is the biochromophore of the visual pigment rhodopsin in the vertebrate eye. Rhodopsin is an extensively studied G protein-coupled receptor protein that lies on the membrane of the rod cells in the retina […]

Fluorescent Tools for Cell Redox Signaling and a Click-Type Bioconjugation Reaction

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Professor Huiwang Ai Presents:

Wednesday October 9th, 2013 at 4:00 PM in Chemistry A101

Redox-active molecules such as hydrogen sulfide and several reactive oxidative species (ROS) can diffuse inside cells and across cell membrane, and are increasingly recognized for their important functions in cell signaling. We have recently utilized genetically encoded unnatural amino acids and fluorescent proteins to develop encodable fluorescent probes for redox-active molecules. Selective probes for hydrogen sulfide and […]

The Extraordinary Properties of Monolayer Transition Metal Dichalcogenides

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Max Braun Presents:

Tuesday October 8th, 2013 at 4:00 PM in Chemistry A101

The Molecular Basis of Eukaryotic Transcription

Roger Kornberg Presents:

Monday October 7th, 2013 at 2 p.m. in A/Z W118

Synthesis of Biodegradable Materials with Topological Microstructures

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Professor Dongmei Cui Presents:

Friday October 4th, 2013 at 4:00 PM in Chemistry A101

Formation Mechanism of Laser-Induced Periodic Surface Structures, (LIPSS), with Ultrashort Laser Pulses

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Max Mattson Presents:

Thursday October 3rd, 2013 at 4:00 PM in Chemistry A101

The curious phenomenon of Laser-Induced Periodic Surface Structures, (LIPSS), has gained ardent interest in the past few years due in part to the fact that periodic nano-scale wavelike structures are created when a linearly polarized ultrashort pulsed laser is focused onto nearly any material at intensities near the material’s ablation threshold.1 Characteristics such as corrugation […]

The Cell by Cell Chemical Characterization of the Brain: From New Tools to New Insights

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Prof. Jonathan V. Sweedler Presents:

Wednesday October 2nd, 2013 at 4:00 PM in Chemistry A101

In the postgenomic era, one expects the suite of chemical players in a brain region to be known and their functions uncovered. However, many cell-to-cell signaling molecules remain poorly characterized and for those that are known, their localization and dynamics are oftentimes unknown. A suite of bioanalytical approaches are described that allow the investigation of […]

Catalysis at Interfaces: Turning CO2 into Ethanol and New Approaches to Controlling Selectivity

Matt Kanan Presents:

Monday September 30th, 2013 at 4:00 PM in Chemistry A101

Sponsor: Pfizer

Applying for Chemistry Graduate Fellowships: Stacking the Deck in Your Favor

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Friday September 27th, 2013 at 4:30 PM in Chemistry A101

Chemistry Department Seminar/Workshop Applying for Chemistry Graduate Fellowships: Stacking the Deck in Your Favor A student/faculty panel discussion will provide views from the applicant’s perspective as well as what reviewers are seeking in successful applications. Especially relevant for: o 1st and 2nd year graduate students o senior undergraduates interested in graduate school o potential faculty […]

The Colloidal Glass Transition Probed with Dynamic Light Scattering

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Kathryn Tracy Presents:

Thursday September 26th, 2013 at 4:00 PM in Chemistry A101

Glass is a nonequillibrium state of matter that occurs when a liquid is cooled faster than a crystal structure can form and the amorphous arrangement of molecules is maintained.  While structure is unaffected by this transition, the dynamic properties, such as viscosity of the material, is changed through the glass transition.1  The microscopic dynamics of […]

Professional Development Series: Intellectual Property from an Industrial Perspective

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Prof. Melissa Reynolds Presents:

Wednesday September 25th, 2013 at 4:00 PM in Chemistry A101

Interested in learning about intellectual property from working professionals in science and engineering companies? This professional development seminar will provide an opportunity to learn about the opportunities and challenges of intellectual property (IP) in the industrial setting. The seminar will include a brief introduction to the nuts and bolts in IP practices and policies which […]

Understanding the charge-generating process in Organic Photovoltaic Solar Cells

Garry Rumbles Presents:

Tuesday September 24th, 2013 at 4:00 PM in Chemistry A101

Catalytic Asymmetric Molecular Rearrangements

Uttam Tambar Presents:

Monday September 23rd, 2013 at 4:00 PM in Chemistry A101

Our group is interested in discovering new catalytic asymmetric rearrangements, which are synthetically powerful chemical transformations for the assembly of complex molecules.  We have developed a series of enantioselective [2,3]-rearrangements, including an allylic amination of unactivated olefins via a [2,3]-rearrangement and a Meisenheimer rearrangement of allylic amine N-oxides.  Our efforts in this area have provided […]

The Quest for Noninvasive Glucose Sensing: Fundamental Principles and Analytical Capabilities

Professor Mark A. Arnold Presents:

Thursday September 19th, 2013 at 4:00 PM in Chemistry A101

Near infrared spectroscopy offers the ability to probe the human body and collect vibrational information from chemical constituents within living tissue.  The near infrared region of the electromagnetic spectrum extends from 700 to 2500 nm or 14,285 to 4,000 cm-1.  The absorption properties of water create a set of three spectroscopic windows through aqueous samples, […]

Application of Microfluidics with IR Spectroscopy for the Investigation of Protein Secondary Structure

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Brynson Lehmkuhl Presents:

Wednesday September 18th, 2013 at 4:00 PM in Chemistry A101

  Protein secondary structure is critical to the proper function of the protein. Secondary and tertiary structure distortions have been associated with various diseases as well as protein aggregation.1 Infrared spectroscopy (IR) coupled with microfluidics offers the solution to study conformational changes. Microfluidics will allow the protein sample to be quickly modified with different samples […]

Analysis of Glutaraldehyde: Using Solid-Phase Microextraction for the Complex Matrix of Hydraulic Fracturing Fluid

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Genevieve Kahrilas Presents:

Wednesday September 18th, 2013 at 4:00 PM in Chemistry A101

Hydraulic fracturing is a process being used to increase oil and gas extraction from unconventional rock formations such as tight shales.  This technique involves using a fluid– a mixture of water, a proppant such as sand, and chemicals– to induce and hold open cracks in the target formation.  Glutaraldehyde (GLA), a biocide, is one of […]

The Design, Synthesis, and Characterization of New Compounds with Basic Science and Energy-Related Applications

Tyrel McQueen Presents:

Monday September 16th, 2013 at 4:00 PM in Chemistry A101

Abstract   Solid state transition metal compounds have a rich structural chemistry. Combined with strong electron-electron interactions, which cause electrons to show cooperative behavior rather than acting independently, these materials end up with a delicate balance between different electronic and magnetic states. In this talk, I will first present a general introduction to strongly correlated […]

Noble Metallurgy at Radius 1.0 Nanometers

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Prof. Robert L. Whetten Presents:

Friday September 13th, 2013 at 4:00 PM in Chemistry A101

Globular clusters of ~ 145 noble-metal atoms play a special role in the science & diverse applications of protected metallic clusters.  “Ubiquitous” is the term used to indicate their high abundance over a wide range of preparative conditions.  Evidently, the reason is that their dimensions (radius ~ 1.0 nm) are just right to hold precisely […]

Methods and Instrumentation for the Measurement of Hydroxyl Radical Reactivity in Relation to Atmospheric Chemistry

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Andrew Abeleira Presents:

Wednesday September 11th, 2013 at 4:00 PM in Chemistry A101

Atmospheric hydroxyl radical (ŸOH) reactivity is a measure of the number of times per second an OH radical reacts with an air sample.1 The magnitude of the OH radical reactivity of an air sample directly correlates to the amount of reactive species in the air sample.1 The atmosphere is a complex chemical system that is […]

Psudonatural Product Discovery Accelerated by the RaPID Platform System

Hiro Suga Presents:

Tuesday September 10th, 2013 at 4:00 PM in Chemistry A101

Sponsor: Lilly

The Structure-Function Relationship of Photosystem II

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Gregory Terho Presents:

Thursday September 5th, 2013 at 4:00 PM in Chemistry A101

Nature has designed a variety of plant and bacteria based systems to harvest and convert solar energy into chemical energy 1. The ability of photosystem II to harvest light and then the transfer energy to the reaction center can be understood through relating structure of the light-harvesting complex of photosystem II (LHCII) to the energy […]

Zwitterionic Gadolinium-Doped Iron-Oxide-Based Nanoparticles as Potential T1 MRI Contrast Agents

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Laura Tvedte Presents:

Tuesday September 3rd, 2013 at 4:00 PM in Chemistry A101

Asymmetric Counterion Pair Catalysis – Concepts and Applications

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Magnus Rueping Presents:

Friday August 30th, 2013 at 4:00 PM in Chemistry A101

Electron Microscopy as a Nanofabrication Platform

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Dr. Matthew Bresin Presents:

Thursday August 29th, 2013 at 10:30 AM in Yates 414/416

: Developed in the early 20th century,electron microscopy has been employed to observe and characterize featuresthousands of times smaller than a human hair. These observations have givenresearchers unparalleled access to the micro- and nano-scale; for example the directimaging of DNA and atoms. Beyond imaging, electron microscopy allows for thestudy of charged-particle (namely electron) interactions with […]

Graduate Student Meeting

Matt Shores Presents:

Tuesday August 27th, 2013 at 4:00 PM in Chemistry A101

Designer Nanoparticle Chains: Assembly of Shaped Nanoparticles within Polymer Thin-Film

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Dr. Bo Gao Presents:

Monday August 26th, 2013 at 10:30 AM in Yates 414/416

The capability of organizing nanobuilding blocks into highly ordered architectures over macroscopic area in a controllable way is of great importance for fabrication of functional nanomateials. Large research efforts have been made towards building hierarchical nanoparticle assembly during the last decade, while precise control over interparticle orientation and distance remain to be a great challenge. […]

Application of Transmission Electron Microscopy in Tribology Research

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Dr. Hamidreza Mohseni Presents:

Thursday August 22nd, 2013 at 10:00 am in E112 Anatomy/Zoology

Abstract:  Tribology is defined as the science and technology of interacting surfaces in relative motion and extensively deals with surface characterization, adhesion, friction, wear, lubrication and contact mechanics. One of the major challenges in this field is to replace liquid lubricants for use in extreme environments such as cycling between low/high temperatures, ambient humid/dry nitrogen […]

Application of High Resolution Electron Microscopy to the Characterization of Crystalline Nano-structures

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Dr. Roy H. Geiss Presents:

Monday August 19th, 2013 at 10:00 am in E112 Anatomy/Zoology

High resolution electron microscopy has become a major tool for the characterization of nanostructures. Nanostructures are usually defined as entities which have at least one physical dimension on the order of 100 nm or less. With modern electron microscopes, high resolution transmission (HRTEM) and high resolution scanning transmission (STEM) images with point resolution between 0.1 […]

Role of Aerosols in Earth’s Climate: From Radiative Forcing to Chemistry

Dr. A.R. (Ravi) Ravishankara Presents:

Tuesday August 6th, 2013 at 4:00 PM in Behavioral Sciences Bldg, Room 103

Aerosols play key roles in many aspects of Earth’s climate: (1) they interact directly with the incoming radiation, (2) they alter the cloudiness and thus alter the radiation balance, and (3) they alter the chemical composition that further influences the radiation field.  Each of these roles is not well quantified and thus the role of […]

New Methods for C-C and C-F Bond Formation

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Abigail G. Doyle Presents:

Tuesday June 11th, 2013 at 4:00 PM in Chemistry A101

Studies in Nanocrystal Synthesis, Solution Chemistry and Product Purity

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Sarah Fredrick Presents:

Friday May 10th, 2013 at 4:00 PM in Chemistry A101

In order to reduce our carbon footprint, renewable energies must comprise a significant portion of our energy consumption.  Solar power is one source capable of meeting such energy demands due to the virtually unlimited power produced by the sun. Yet to date, only 2 % of US power produced by renewable energies came from solar […]

Practical Homogeneous Au(I)- and Ga(III)-Catalysis: a Few Tips

Vincent Gandon Presents:

Wednesday May 8th, 2013 at 4:00 PM in Chemistry A101


In Search of Concurrence Between Biological and Synthetic Single Molecule Structure/Function

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Christy Landes Presents:

Thursday May 2nd, 2013 at 4:00 PM in Chemistry A101

Whether a synthetic material is intended for a medical therapeutic or for charge storage, one of the innate challenges in materials chemistry is the ability to engineer cheap, efficient, robust devices. Nature manufactures such materials from the cheapest of precursors. As we advance to scientific tools able to observe nature’s molecular level methods, we begin […]

Senior/Awards Banquet

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Wednesday May 1st, 2013 at 6:00 PM in Hilton Fort Collins, Legends Room

This event is by invitation only. Invitations will be mailed in late March. For information contact Cindy Ungerman at

The Electrical Detection of Disease Markers Using Nanowires Interfaced to Viruses

Reginald Penner Presents:

Wednesday April 24th, 2013 at 4:00 PM in Chemistry A101

The Electrical Detection of Disease Markers Using Nanowires Interfaced to Viruses.   G.A. Weiss, R.M. Penner, Department of Chemistry, University of California, Irvine, CA, 92697.   In this talk I’ll describe a new approach to biosensors that has as its objective the development of ultra-cheap, disposable biosensors that are able to detect virtually any analyte […]

Wood Eye! Selective Aerobic Oxidation of C-C Bonds in Lignin Models using Base Metal Complexes: A Comparison of Oxovanadium and Copper Catalysts

Tom Baker Presents:

Tuesday April 23rd, 2013 at 4:00 PM in Chemistry A101

Multimodal and Multispectral Nano-Imaging: Accessing the Structure, Function, and Dynamics in Nano-Scale Soft Matter

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Markus Raschke Presents:

Thursday April 18th, 2013 at 4:00 PM in Chemistry A101

Structure, function, and dynamics of many soft-matter systems, including polymer heterostructures, organic photovoltaics, or biomembranes are typically defined on the mesoscopic few nm to sub-micron scale. Tip-enhanced and scattering scanning near-field optical microscopy (s-SNOM) has already demonstrated its ability to spectroscopically access that relevant spatial regime. In combination with IR-vibrational spectroscopy s-SNOM provides molecular structural […]

Target-Driven Total Synthesis

Seth Herzon Presents:

Monday April 15th, 2013 at 4:00 PM in Chemistry A101

Sponsor: BMS

Generation & Pharmacology of Advanced 11βHSD-1 Inhibitors: Targeting Diabetes via Glucocorticoid Modulation

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Dr. Jeffrey Robl Presents:

Monday April 15th, 2013 at 4:00 PM in Chemistry A101

The road to Maoecrystal V

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Curtis Seizert Presents:

Monday April 8th, 2013 at 4:00 PM in Chemistry A101

Understanding the Physical Behavior of Nitric Oxide Polymer Systems

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Jessica Joslin Presents:

Thursday April 4th, 2013 at 4:00 PM in Chemistry A101

Nitric oxide (NO)-releasing materials have been investigated as potential biomaterials. A multitude of NO-releasing platforms have been reported, with different NO-release properties indicating use in different bioapplications.1 Despite the positive implications associated with these materials, the field is currently limited by a couple major problems. Firstly, the reservoirs of NO stored in current systems do […]

Effect of Nitric Oxide Release on Protein-Surface Interactions

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Sarah Lantvit Presents:

Wednesday April 3rd, 2013 at 4:00 PM in Chemistry A101

Preventing blood clotting on artificial materials remains a critical challenge. Our strategy to combat this problem is through the release of nitric oxide (NO). NO-releasing surfaces have shown promise in preventing clot formation.1 To date, the underlying mechanism of action has been attributed to platelet inactivation due NO’s role as an anti-platelet agent. Platelets are […]

New Modes of Activation for Catalysis and Enantioselective Synthesis of Spirocyclic Oxindoles

Annaliese Franz Presents:

Monday April 1st, 2013 at 4:00 PM in Chemistry A101

Sponsor: Organic Synthesis

Progress toward the total synthesis of the human mammary gland

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Zev Gartner Presents:

Thursday March 28th, 2013 at 4:00 PM in Chemistry B202

Understanding the Chemistry in the Gas Phase and on the Wire Surface in Hot-wire Chemical Vapor Deposition

Yujun Shi Presents:

Thursday March 28th, 2013 at 4:00 PM in Chemistry A101

 Hot-wire Chemical vapor deposition (CVD) is a useful technique to form silicon-containing semiconductors, metal oxides and polymer thin films. It utilizes the catalytic ability of metal filaments (W or Ta) to decompose source gases to radicals at high temperatures (≥1500°C). The radical-radical and radical-molecule reactions in the gas phase produce the final mix of film […]

Development of Analytical Tools for Catalyst Evaluation and Screening

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Keith Stevenson Presents:

Wednesday March 27th, 2013 at 4:00 PM in Chemistry A101

The realization that nanoscale materials can have catalytic properties, which are intrinsic to their size, has invigorated the field of catalysis. In the area of alternative energy production, the synthesis and conversion of chemical energy is limited by the cost and activity of available catalysts. Fuel cells have not been commercialized on a large scale […]

Probing Ligand Field Effects on Spin State Properties of Iron(II) Complexes: Towards Colorimetric Chemosensors

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Christina Klug Presents:

Tuesday March 26th, 2013 at 4:00 PM in Chemistry A101

Complex Natural Products as a Driving Force for Discovery in Organic Chemistry

Brian Stoltz Presents:

Monday March 25th, 2013 at 4:00 PM in Chemistry A101

Understanding Spectroscopy of Nanoconfined Liquids

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Dr. Ward H. Thompson Presents:

Thursday March 14th, 2013 at 4:00 PM in Chemistry A101

Dramatic changes in the molecular-level liquid structure and dynamics occur upon nanoscale confinement in materials ranging from sol-gels to supramolecular assemblies.  A number of vibrational and electronic spectroscopic techniques are routinely used to probe the behavior of such nanoconfined liquids.  However, in general, how the molecular-level structural and dynamical properties are represented in spectra can […]

New Methods and Strategies for the Synthesis of Epidithiodiketopiperazine Natural Products

Sarah Reisman Presents:

Monday March 11th, 2013 at 4:00 PM in Chemistry A101

Sponsor: Organic Synthesis

Assembling Nanoclusters in Water

Tom Truskett Presents:

Thursday March 7th, 2013 at 4:00 PM in Chemistry A101

Nanometer-scale particles suspended in a fluid can self-assemble into different structures depending on the nature of their effective interparticle interactions. In many cases, these interactions are tunable via physical or chemical modification of the particle surfaces or changes in the composition of the suspending solvent. For example, fluid dispersions of particle clusters can result from […]

Nanostructured Crystalline Inorganic Semiconductors for Electrochemical Energy Conversion/Storage

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Stephen Maldonado Presents:

Wednesday March 6th, 2013 at 4:00 PM in Chemistry A101

This presentation will highlight recent work by our research group onthe synthesis, design, and study of nanostructured semiconductors asmaterials in (photo)electrochemical energy conversion systems. Ageneral and brief overview/motivation for nanostructuredsemiconductors in energy conversion applications will first be given,including recent advancements in the development of dye-sensitizedphotocathodes. The remaining portion of the talk will detail ourrecent discovery […]

Packing Them In: Using Self-Assembled Protein Cages to Direct the Synthesis and Packaging of Polymers, Minerals, and Proteins

Trevor Douglas Presents:

Wednesday February 27th, 2013 at 4:00 PM in Chemistry A101

Protein cages have emerged as useful platforms for synthetic manipulation with a range of applications from materials to medicine. Synthetic manipulation can impart new function, combining the best of evolution and directed synthetic design. We have developed a library of protein cage architectures, which differ in size, porosity, and stability, for synthetic manipulation. This library […]

New Palladium-Catalyzed C−H Functionalization Strategies for Organic Synthesis

Gong Chen
Gong Chen Presents:

Tuesday February 26th, 2013 at 4:00 PM in Chemistry A101

Poly(organophosphazene) blends and composites as synthetic bone tissue scaffolds

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Alec Lutzke Presents:

Friday February 22nd, 2013 at 4:00 PM in A101

With an estimated 500,000 to 600,000 bone graft procedures performed each year in the United States alone, there is significant clinical and academic interest in the development of new synthetic tissue engineering scaffolds capable of functioning as bone graft substitutes.[1]  Poly(organophosphazenes), a diverse class of polymers based on the polyphosphazene backbone, have been investigated as […]

The Cell by Cell Chemical Characterization of the Brain: from New Tools to New Insights

Jonathan Sweedler Presents:

Wednesday February 20th, 2013 at 4:00 PM in Chemistry A101

In the postgenomic era, one expects the suite of chemical players in a brain region to be known and their functions uncovered. However, many cell-to-cell signaling molecules remain poorly characterized and for those that are known, their localization and dynamics are oftentimes unknown. A suite of bioanalytical approaches are described that allow the investigation of […]

Molecular and Material Approaches to Advance Solar Energy Conversion

Tom Hamann Presents:

Tuesday February 19th, 2013 at 4:00 PM in Chemistry A101

Abiological Self-Assembly: Predesigned Metallacycles and Metallacages via Coordination

Peter Stang Presents:

Monday February 18th, 2013 at 4:00 PM in Chemistry A101

Sponsor: Organic Synthesis

Visit Chemistry Day

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Monday February 18th, 2013 at 9:30 AM in Chemistry Building

Visit the Chemistry Department Day – Learn more at:

New Strategies in Reagent and Assay Design for Point-of-Use Diagnostics

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Scott Phillips Presents:

Wednesday February 13th, 2013 at 4:00 PM in Chemistry A101

Few thermally-stable reagents are available for diagnostic applications in resource-limited environments such as the developing world. This presentation will describe the design of several new small molecule reagents as well as unique assay strategies that provide the features of selectivity, sensitivity (via signal amplification), quantitative readouts, and ease of use.  

Magnetic Resonance Imaging: A New αvβ3 Integrin–Targeting Metallostar for Use as a Bimodal Contrast Agent

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Laura Tvedte Presents:

Tuesday February 12th, 2013 at 4:00 PM in Chemistry A101

Reaction, Interactions and Dynamics in Biological Membranes: Vesicles to Brains

Steven Boxer Presents:

Thursday February 7th, 2013 at 4:00 PM in Chemistry A101

Abstract Our lab has developed a wide range of methods for patterning lipid bilayers on solid supports.  These 2D fluids are interesting as a model for biological membranes, as a physical system with unusual properties, and as a step towards the creation of controlled interfaces between biological and non-biological surfaces.  Methods have been developed for […]

Moving beyond Facebook: Networking for your career

Delphine K. Farmer Presents:

Wednesday February 6th, 2013 at 4:00 PM in Chemistry A101

Facebook is probably the first thing that comes to mind when you’re toldto ‘expand your network’, but it isn’t always a good idea to friend yourresearch advisers! We will discuss what networking really is, why it’sessential for getting a job these days, and how to go about establishing andmaintaining a scientific network. This is the […]

“Water-air Interfaces in the Contemporary and on Ancient Earth”

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Veronica Vaida Presents:

Thursday January 31st, 2013 at 4:00 PM in Chemistry A101

Water is a crucial factor in establishing the habitability of earth, its chemistry, temperature and climate. This presentation will discuss the role of water in atmospheric chemistry with emphasis on catalysis at water-air interfaces, found in the natural environment at the surface of lakes, oceans and the vast population of global atmospheric aerosol. Examples from […]

Microextraction Techniques for the Analysis of Polycyclic Aromatic Hydrocarbon Byproducts

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Julie Denham Presents:

Wednesday January 30th, 2013 at 4:00 PM in Chemistry A101

Polycyclic aromatic hydrocarbons (PAHs) are primarily formed by incomplete combustion and biomass burning.  PAHs are a wide spread pollutant and are hypothesized to undergo long-range transport. This is evidenced by PAH concentrations in the polar ice caps, which have been detected at low ppm.1 PAH molecules in the atmosphere can also react to form oxygenated, […]

Solid Phase Extraction for Trace Quantitative Analysis of Nitrosamines

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Jeramy Jasmann Presents:

Wednesday January 30th, 2013 at 4:00 PM in Chemistry A101

N-nitrosamines are a group of carcinogenic water contaminants with rising concern due to widespread detection in drinking water and wastewater treatment systems.  N-nitrosamines are disinfection byproducts formed by amines in influent water reacting with the chloramines, chlorines or ozone used for pathogen control in public water systems. Drinking water concentrations as low as 0.7 ng/L […]

Designing Chemically Robust Metal Oxides for Visible-Light Photocatalysis: toward Solar Z-Scheme Water Splitting

Bart Bartlett Presents:

Tuesday January 29th, 2013 at 4:00 PM in Chemistry A101

Melanin Molecular Recognition

Jason Belitzky Presents:

Monday January 28th, 2013 at 4:00 PM in Chemistry A101

Novel chemoenzymatic and chemobiosynthetic strategies for molecular discovery

Rudi Fasan Presents:

Wednesday January 23rd, 2013 at 4:00 PM in Chemistry A101

Appropriate Applications of the Quantum Theory of Atoms in Molecules

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Mardi Billman Presents:

Tuesday January 22nd, 2013 at 4:00 PM in Chemistry A101

Obtaining Structural Snapshots of Reacting Molecules in Real Time with Ultrafast Vibrational and Surface-enhanced Spectroscopies

Dr. Renee Frontiera Presents:

Thursday January 17th, 2013 at 4:00 PM in Chemistry A101

This talk will focus on probing chemical reactivity through the use of an innovative technique called Femtosecond Stimulated Raman Spectroscopy (FSRS), which is capable of following vibrational structure with simultaneous high spectral and temporal resolution. By acquiring complete structural snapshots of evolving molecules on the femtosecond time scale, one can map out portions of a […]

Probing and Chemically Manipulating 2D Carbon Based Electronic Materials in Time and Space

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Dr. James E. Johns Presents:

Tuesday January 15th, 2013 at 4:00 PM in Chemistry A101

Carbon based systems such as graphene and polymers have been proposed as successors to silicon and other inorganic semiconductors in a number of applications including solar cells, and microelectronics; however, several persistent chemical issues prevent their wide scale incorporation into real world devices. The first part of this talk will examine one such problem, namely […]

Molecular Engineering on Mechanically Interlocked Molecules and Conductive Polymers

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Dr. Lei Fang Presents:

Wednesday January 9th, 2013 at 4:00 PM in Chemistry A101

The application of mechanically interlocked molecules (MIMs) remains an area of intense activity in research. The performance of the related devices are governed by the switching behavior of the mechanically interlocked molecules in the different environments, such as in aqueous solutions, in polymer scaffolds, or on the surfaces of nanostructures. The first part of this […]

Chemical and Kinetic Control of Structure/Property Relationships in Functional Inorganic Materials

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Dr. James Neilson Presents:

Monday January 7th, 2013 at 4:00 PM in Chemistry A101

A grand challenge in chemistry and materials science revolves around the preparation of materials with desired properties that derive from their structure.  Complementary to the high-temperature reactions used to facilitate diffusion within a solid, control of crystal chemistry by way of low-temperature and partial solution-phase reactions provide new opportunities to modulate or discover structure-property relationships in functional materials.  In the precipitation […]

Nonlinear Optics of Proteins: Implications for Structural Biology

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Professor Garth Simpson Presents:

Thursday December 6th, 2012 at 4:00 PM in Chemistry A101

Can nonlinear optics help inform drug discovery? Efforts toward this end will be introduced integrating second harmonic generation (SHG) microscopy of protein crystals with synchrotron X-ray diffraction (XRD).  Rational drug design hinges on precise knowledge of protein structure, which is most routinely determined at high resolution by XRD of protein crystals. The high brilliance and […]

NEW DATE* Polar intermetallics; formation and structure of Approximant crystals

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Marcus Tofanelli Presents:

Tuesday December 4th, 2012 at 4:00 PM in Chemistry A101

New synthetic transformations using alkenes: From transition metal catalysis to metal-free radical reactions

Erik Alexanian Presents:

Monday December 3rd, 2012 at 4:00 PM in Chemistry A101

Drug and Disease Marker Detection in a Dried Blood Spot Matrix

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Rachel Feeney Presents:

Wednesday November 28th, 2012 at 4:00 PM in Chemistry A101

Clinical diagnostics are primarily based on analysis of venous blood samples, which require painful, invasive collection methods. Implementing dried blood spots (DBS) as a collection method provides many benefits when compared to venous blood draws. Samples are collected by blotting blood from a fingerprick to filter paper, requiring much smaller blood volumes than venous blood […]

NOx Sensing Applications of SnO2 Nanomaterials

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Erin Stuckert Presents:

Wednesday November 28th, 2012 at 4:00 PM in Chemistry A101

The sensing of nitrogen oxides, NxOy, has long been a topic of great importance due to the severe negative health impacts caused by exposure to this class of compounds. Specifically, there is interest in NOx which is composed of NO and NO2. Most NOx is in the form of NO2 as a result of the […]

Exploiting Unconventional Carbonyl Reactivity for Natural Products and Designed Materials Synthesis

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Brandon Ashfeld Presents:

Tuesday November 27th, 2012 at 4:00 PM in Chemistry A101

Hydrophobic, Oleophilic Materials for Surface Oil Spill Cleanup

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Morgan Hawker Presents:

Friday November 16th, 2012 at 4:00 PM in Chemistry A101

Over three million gallons of oil have been released into the world’s oceans over the last four decades.1 Since oil spills negatively impact the marine environment, it is critical to mediate these surface spills before they spread. Current mediation methods include mechanical skimming machines, in situ burning, and use of chemical dispersants.2 While each of […]

Theoretical Calculation of Acid Dissociation Constants

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Mark Holfelder Presents:

Thursday November 15th, 2012 at 4:00 PM in Chemistry A101

Interest in calculating the dissociation constant of acids from a theoretical standpoint has risen in the past decade. Theoretical calculation has advantages in terms of both the time and cost required for determination of pKa over experimental methods. Acid dissociation constants are very important biologically; due to the hydrophobic nature of a cell’s membrane, a […]

Trace Quantitative Analysis of Carcinogenic Nitrosamines

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Jeramy Jasmann Presents:

Wednesday November 14th, 2012 at 4:00 PM in Chemistry A101

  N-nitrosoamines, starting with N-nitrosodimethylamine (NDMA) in 1998, have been detected in nearly 1/3 of the chlorinated drinking water tested thus far in the United States.1  Investigations over the last decade have determined nine nitrosamines as disinfection byproducts (DBPs) in drinking water, wastewater and chlorinated pools. Nitrosamines have become a priority contaminant of public concern […]

Nanoparticles: From Wulff To Winterbottom, Plasmonics and Catalysts

Laurence Marks Presents:

Tuesday November 13th, 2012 at 4:00 PM in Chemistry A101

Catalyst optimization in Fischer-Tropsch over cobalt

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Adam Crooks Presents:

Tuesday November 6th, 2012 at 4:00 PM in Chemistry A101

Bacteria control spatial biochemistry using anionic phospholipids

Doug Weibel Presents:

Monday November 5th, 2012 at 4:00 PM in Chemistry A101

Undergraduate Research Open House


Monday November 5th, 2012 at 6:00 pm for pizza in Chemistry B204

learn about undergraduate research opportunities in the department meet research faculty and undergraduates currently involved in research tour research labs

Recent Developments in Low Dosage Hydrate Inhibitors

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Prof. Malcolm Kelland Presents:

Friday November 2nd, 2012 at 4:00 PM in Chemistry A101

Meyers Symposium 2012

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Saturday October 27th, 2012 at 8:00 AM in Behavioral Sciences Building, Room 131

The Department of Chemistry at Colorado State University is honored to host the 2nd Meyers Symposium on October 27, 2012.  Four world-renowned scientists will give plenary lectures on key advances in modern organic chemistry.  The symposium will also feature talks from CSU graduate students, as well as a poster session and reception. We invite you […]

The Role of Microwave Irradiation in Microwave-Assisted Nanoparticle Synthesis

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Everett Jackson Presents:

Friday October 26th, 2012 at 4:00 PM in Chemistry A101

Since the mid 1990s, inorganic chemists have utilized microwave ovens in an attempt to translate the benefits observed for microwave-assisted organic synthesis to colloidal nanoparticle synthesis.1 Despite a now large body of literature on this subject the mechanisms responsible for the observed yield improvements, reduced size dispersity, and shorter reaction times in microwave reactors have […]

Nano-Imaging with Polymer Dot Nanoparticles

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Professor Jason McNeill Presents:

Wednesday October 24th, 2012 at 4:00 PM in Chemistry A101

We have developed highly fluorescent nanoparticles for nanoscale imaging and sensing applications, which we call “polymer dots”. These nanoparticles, which are many times brighter than similar-sized quantum dots, primarily consist of semiconducting conjugated polymers.They can be bioconjugated for cell imaging and can be modified to act as sensors. Spectroscopy of the particles at the single […]

Chemistry with Methane: Concepts Rather than Recipes

Helmut Schwarz Presents:

Tuesday October 16th, 2012 at 4:00 PM in Chemistry A101

Thioamides: Minimalist Chromophores for Monitoring Protein Conformation

James Petersson Presents:

Monday October 15th, 2012 at 4:00 PM in Chemistry A101

Molecular Dynamics of Explosives

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Prof. Dana D. Dlott Presents:

Thursday October 11th, 2012 at 4:00 PM in Chemistry A101

In this talk I will discuss some of the fundamentals of chemical and nanoparticle explosives.  These are materials that when subjected to a high speed impact, undergo extensive chemical reactivity with large energy release.  Understanding how an impact on a solid creates chemical reactivity is a difficult problem in chemistry and it requires new kinds […]

Aerosol Measurements Using a Thermal Denuder

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Penny P. Osborne Presents:

Wednesday October 10th, 2012 at 4:00 PM in Chemistry A101

Aerosols are liquid or solid particles suspended in air or gas, and are emitted into the atmosphere through biogenic and anthropogenic sources. Aerosols affect health and global climate.1,2 Aerosol volatility is a fundamental property that governs gas–particle partitioning and is a critical parameter for modeling the formation of aerosols.3 Photochemical reactions in the atmosphere change […]

Origin of luminesence in small Au(n) clusters

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Scott Compel Presents:

Tuesday October 9th, 2012 at 4:00 PM in Chemistry A101

Donor-Acceptor Substituted Aminocyclopropanes and Electrophilic Acetylenes: From Catalysis to Alkaloid Synthesis

Jerome Waser Presents:

Monday October 8th, 2012 at 4:00 PM in Chemistry A101

Entropic Control in Materials Design as an Example of Green Chemistry

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John C. Warner Presents:

Friday October 5th, 2012 at 4:00 PM in Chemistry A101

The traditional construction of materials is usually driven by classical synthetic transformations involving the making and breaking of covalent bonds. These processes often require high energy input and highly reactive and hazardous materials. In natural systems, one typically encounters synthetic control schemes that are based on entropic forces rather than these human-designed enthalpic manipulations. In […]

Some Surprises and Open Questions in Materials Chemistry

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Professor Steve Granick Presents:

Thursday October 4th, 2012 at 4:00 PM in Chemistry A101

A fundamental materials challenge is to form structure that is not frozen in place but instead reconfigures internally driven by energy throughput and adapts to its environment robustly. Predicated on fluorescence imaging at the single-particle level, this talk describes quantitative studies of how this can happen. With Janus colloidal clusters, we show the powerful role […]

Main group organometallic compounds supported by oxazolinylborate ligands in catalysis

Aaron Sadow Presents:

Tuesday October 2nd, 2012 at 4:00 PM in Chemistry A101

Targeting membrane lipids with designed peptides

Jianmin Gao Presents:

Monday October 1st, 2012 at 4:00 PM in Chemistry A101

Carbon Nanotubes as Prospective Materials for Printable Thin-Film Transistors for Display Applications

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Joel Kirner Presents:

Friday September 28th, 2012 at 4:00 PM in Chemistry A101

Improvements in transistor technology over the last century have been arguably some of the most influential developments for advancing electronics and computing. There are many different types of transistors, each with different advantages for different applications.  In recent years, thin film transistors (TFTs) for display applications have developed into an industry worth more than $100 […]

Ring Resonator Biosensors: The Next Generation in Optical Biomarker Detection

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Michael Barich Presents:

Thursday September 27th, 2012 at 4:00 PM in Chemistry A101

An introduction to label-free optical biomolecule detection via ring resonators and the physical properties that govern their performance will be presented. Ring resonators confine light within the detector’s optical material via total internal reflection that results in an evanescent wave that extends beyond the material.  As sample flows over the ring resonators, the molecule of […]

Secondary Organic Aerosol (SOA) Formation From Isoprene Oxidation: Role of Epoxides

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Professor Jason Surratt Presents:

Wednesday September 26th, 2012 at 4:00 PM in Chemistry A101

Atmospheric fine particulate matter (PM2.5) plays a key role in many environmental processes, such as scattering and absorbing solar and terrestrial radiation, which affects the changing global climate, and participates in heterogeneous chemical reactions, thereby affecting the abundance and distribution of atmospheric trace gases or pollutants.It is established that exposure to PM2.5 is associated with […]

Progress in Sustainable Catalysis Using Iron

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Patrick Kent Presents:

Tuesday September 25th, 2012 at 4:00 PM in Chemistry A101

No More Nucleophiles: Direct, Selective Cross Coupling of Electrophiles

Daniel Wiex Presents:

Monday September 24th, 2012 at 4:00 PM in Chemistry A101

Sponsor: Aldrich

Advances in Understanding Blood Flow…from a Chemistry Lab???

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Professor Dana Spence Presents:

Wednesday September 19th, 2012 at 4:00 PM in Chemistry A101

Without question, one of the roles of the red blood cell (RBC) is to deliver oxygen to tissues and organs throughout the body.  However, for nearly two decades, results from many research groups (both basic and clinical) are strongly suggesting that the RBC is also participating in the control of blood flow and many properties […]

Finite Size Effects on Phase Stabilities, Phase Transitions, and Electronic Structure

Sarbajit Banerjee Presents:

Tuesday September 18th, 2012 at 4:00 PM in Chemistry A101

Synthesis Studies of Heterocyclic Natural Products

Toshiyuki Kan Presents:

Monday September 17th, 2012 at 4:00 PM in Chemistry A101

Sponsor: Pfizer

Theory and Molecular Simulation Studies of Macromolecular Soft Materials

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Arthi Jayaraman Presents:

Friday September 14th, 2012 at 4:00 PM in Chemistry A101

We develop and use theory and simulation techniques to understand molecular-level phenomena in macromolecular soft materials (polymers, DNA, proteins).  The first part of my talk will focus on theory and simulation studies of polymer functionalized nanoparticles in polymer nanocomposites. Significant interest has grown around the ability to control spatial arrangement of nanoparticles in a polymer […]

Information in Protein Sequences: Combinatorial and Statistical Protein Design

Thomas Magliery Presents:

Thursday September 13th, 2012 at 4:00 PM in Chemistry A101

Additives for Improving Capillary Electrophoretic Separations of Polycyclic Aromatic Hydrocarbons

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Julie E. Denham Presents:

Wednesday September 12th, 2012 at 4:00 PM in Chemistry A101

Polycyclic aromatic hydrocarbons (PAHs) have a number of effects on human health, including being carcinogenic and/or mutagenic.1,2 PAH generation occurs by natural and anthropogenic combustion as well as high temperature pyrolysis reactions.3 PAHs are ubiquitous in the environment due to hydrophobic, nonionic, and semi-volatile characteristics.  An analytical separation allowing for quick, efficient, and robust separation […]

Lectin Microarrays: A Hope for High-Throughput Structural Glycomics Profiling

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Wil Biddle Presents:

Wednesday September 12th, 2012 at 4:00 PM in Chemistry A101

Glycosylation is the most common post or co-translational modification system in mammals with well over 50% of the proteome being modified.1 Several key biological processes are directly dependent upon glycosylation events, such as cell-cell interactions, cell-protein interactions, protein folding, metastasis, and immune responses.2,3 For the past 30 years researchers have been developing methods to elucidate […]

Using Insights from Marine Sponge-Derived Biosynthetic Products to Explore Chemically Prolific Microorganisms

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Phil Crews Presents:

Monday September 10th, 2012 at 4:00 PM in Chemistry A101

Sponsor: C2D2 

Exploring Energy Migration in Phospholipid Reverse Micelles

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Nancy Levinger Presents:

Thursday September 6th, 2012 at 4:00 PM in Chemistry A101

The ability of phospholipid molecules to self-assemble is critical to their role in biological membranes. Investigating structure and dynamics of these molecules in self-assembled structures is key to understanding interfacial processes.  Enlisting time-resolved infrared spectroscopy, we have explored dynamics of vibrational energy relaxation and spectral diffusion for a range of vibrational modes in reverse micelles […]

Spectroscopic Measurements of Fluorescence Quantum Yields

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Karlee Castro Presents:

Wednesday August 29th, 2012 at 4:00 PM in Chemistry A101

Fluorescent materials are used in a wide variety of applications including sensors, probes, and luminescent devices.1,2,3  One widely reported property of a fluorescent material is the quantum yield.  Relative quantum yields can be determined spectroscopically by comparison to a fluorescent standard; absolute quantum yields require use of an integrating sphere.4  Both methods require attention to […]

Ionization of Gas Phase Species With Electrospray

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Patrick Brophy Presents:

Wednesday August 29th, 2012 at 4:00 PM in Chemistry A101

John Bennett Fenn et. al. reported the presence of strange peaks in their electrospray ionization (ESI) mass spectra, which were attributed to trace contaminants in their nitrogen bath gas.1  These early insights into the ability of ESI to ionize gas phase species not originally present in the electrspray plume expand the applicability of ESI as […]

Recent Transition Metal – Group 14 Organometallic Chemistry and Catalysis

Keith Pannell Presents:

Tuesday August 28th, 2012 at 4:00 PM in Chemistry A101

Sulfur and Indole: Old Friends, New Methods

Jimmy Wu Presents:

Monday August 27th, 2012 at 4:00 PM in Chemistry A101

Posttranslational modifications in natural product biosynthesis

Wilfred van der Donk Presents:

Thursday August 23rd, 2012 at 4:00 PM in Chemistry B202

Strategies and Methods for Natural Product Synthesis

Regan Thomson Presents:

Friday August 10th, 2012 at 4:00 PM in Chemistry A101

Connecting the Dots:Grb7, Filamin-alpha, and Cell Migration


Friday August 3rd, 2012 at 2:00 pm in Chemistry B202

Dr. Barbara A. Lyons New Mexico State University, Las Cruces, NM Abstract: Filamin-alpha (Fln-a) is an actin-binding protein important in cellular migration via its function in cytoskeletal restructuring. Grb7 is an adaptor protein that binds to several receptor tyrosine kinases (e.g. erbB2) and focal adhesion kinase, and is associated with aggressive metastasized cancers. We recently […]

The NSF-REU Poster Session


Thursday August 2nd, 2012 at 2:00 to 4:00 pm in Yates 102/103

Please come learn about the research that our NSF-REU participants have accomplished this summer!! Refreshments will be served.

The Art of Process Chemistry

Nobuyoshi Yasuda Presents:

Monday July 16th, 2012 at 4:00 PM in Chemistry A103

Universal Gelation of Particles with Short-Ranged Attraction

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Dr. Peter Lu Presents:

Thursday June 28th, 2012 at 4:00 PM in Chemistry B202

Nanoscale or colloidal particles are exceptionally important in many realms of science and technology. They can dramatically change the properties of materials, imparting solid-like behavior to a wide variety of complex fluids, from yoghurt to cast ceramics. This behavior arises when particles aggregate to form mesoscopic clusters and networks. The essential component leading to aggregation […]

Artificial Metalloenzymes: Merging the Best of Homogeneous and Enzymatic Catalysis

Thomas R. Ward Presents:

Wednesday May 30th, 2012 at 4:00 PM in Behavioral Sciences 131

Concepts and Catalysts for Selective Reactions of Carbon-Carbon π-Bonds

Dean Toste Presents:

Monday May 14th, 2012 at 4:00 PM in Chemistry A101

CNS Spring Commencement 2012


Saturday May 12th, 2012 at 8:00 AM in Moby Arena

Douglass Given and Bruce Given will speak at the College of Natural Sciences’ commencement ceremony at 8 a.m. May 12 at Moby Arena. Douglass Givenis an Investment Partner at Bay City Capital. He was formerly chief executive officer and a director of NeoRx, corporate sr. vice president and chief technical officer of Mallinckrodt, and chief […]

Nanoparticle Probes for Measuring Rotation of Individual Proteins on Cell Surfaces

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Dongmei Zhang Presents:

Wednesday May 2nd, 2012 at 4:00 PM in Chemistry A101

Lateral and rotational diffusion of membrane proteins reflect the size, interactions and local membrane environment of the molecules examined. The study of biomolecular interactions in vivo is important to our understanding of complex biological systems and affects our capacity to identify physical phenomena and treat diseases. Rotational diffusion depends linearly on the in-membrane volume of […]

New Developments in Pd-Catalyzed C-H Functionalization

12-6-11 Melanie Sanford, MacArthur Fellow06
Melanie Sanford Presents:

Tuesday May 1st, 2012 at 4:00 PM in Chemistry A101

Engineering Microbes for Synthesis

Brett Blakeley Presents:

Monday April 30th, 2012 at 4:00 PM in Chemistry A101

Ellipsometric Studies on Ultra-thin High Dielectric Constant Materials

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Joshua Thomas Presents:

Thursday April 26th, 2012 at 4:00 PM in Chemistry A101

Moore’s Law was presented as a way to describe the development of micro-processing technology states that the number of transistors on a microprocessor doubles every two years.1  In order for this law to remain true, the size of the transistors must scale down ever smaller.  The current approach to shrinking these transistors is to reduce […]

H20 Plasma Modification of Track-Etched Polymer Membranes and the Use of Plasma Diagnostics to Follow Polymer Modification in Real Time

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Brendan Tompkins Presents:

Wednesday April 25th, 2012 at 4:00 PM in Chemistry A101

Track-etched polymeric microfiltration membranes have a broad range of applications including process filtration, laboratory separations, tissue cultures, and nanomaterials templates.1,2  Owing to their hydrophobic nature, commercially available track-etched membranes are typically treated with wetting agents, such as polyvinylpyrrolidone (PVP).  Although PVP initially facilitates wetting of the membrane, the coating is easily washed away, potentially leading […]

Approaches to Engineering Tissue

Sandra DePorter Presents:

Monday April 23rd, 2012 at 4:00 PM in Chemistry A101

Phenanthroline-Based Cu(I) Dyes for Use in Dye-Sensitized Solar Cells

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Lance Ashbrook Presents:

Friday April 20th, 2012 at 4:00 PM in Chemistry A101

For twenty years the traditional “Grätzel cells” containing Ru(II) polypyridyl-based dyes have dominated the dye-sensitized solar cell (DSSC) world.  Efforts since have focused on alternative dyes and mediators to enhance performance while reducing cost.  Copper is far cheaper, more abundant, and less toxic than ruthenium, and Cu(I)L2-based complexes (L = 1,10-phenanthroline or 2,2’-bipyridine) have demonstrated […]

Interfacial Challenges in Organic-Based Photonic Devices

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Jeanne E. Pemberton Presents:

Wednesday April 18th, 2012 at 4:00 PM in Chemistry A101

Organic photovoltaic (OPV) devices and related thin-film photovoltaic technologies such as organic light-emitting diodes (OLEDs) are typically based on photoactive molecular semiconductors, semiconducting polymers, and/or hybrids of these materials with semiconducting oxide and low work function metal contacts. These dissimilar materials must form chemically and physically robust interfaces for efficient charge harvesting or injection. Dramatic […]

Metal-Metal Multiple Bonds in Early/Late Heterobimetallic Complexes – Small Molecule Activation and Applications Toward Catalysis

Christine Thomas Presents:

Tuesday April 17th, 2012 at 4:00 PM in Chemistry A101

Proparglguanidine hydroaminations and their application to important heterocyclic cores

Ryan Looper Presents:

Monday April 16th, 2012 at 4:00 PM in Chemistry A101

Microfluidic Devices for Assessing Oxidative Activity of Atmospheric Aerosols

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Yupaporn Sameenoi Presents:

Wednesday April 11th, 2012 at 4:00 PM in Chemistry A101

Extensive epidemiological studies show strong associations between the exposure to atmospheric aerosol particulate matters (PM) in the size range of 0.1- 10 µm (PM0.1-PM10) and health problems including respiratory, atherosclerosis and cardiovascular diseases.1 However, the mechanisms of PM-induced toxicity are poorly defined. A leading hypothesis states that airborne PM induces harm by generating reactive oxygen […]

Designing Self-Powered Catalytic Nano-motors and Pumps

Ayusman Sen Presents:

Tuesday April 10th, 2012 at 4:00 PM in Chemistry A101

Self-powered nano and microscale moving systems are currently the subject of intense interest due in part to their potential applications in nanomachinery, nanoscale assembly, robotics, fluidics, and chemical/biochemical sensing.  We will demonstrate that one can build autonomous nanomotors “from scratch” that mimic biological motors by using catalytic reactions to create forces based on chemical gradients. […]

A General Method for Controlling Site-, Regio- and Stereoselectivity

Kian Tan Presents:

Monday April 9th, 2012 at 4:00 PM in Chemistry A101

Development and Applications of Dynamic Covalent Chemistry: From 2-D and 3-D Molecular Architectures to Functional Materials

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Prof. Wei Zhang Presents:

Friday April 6th, 2012 at 4:00 PM in Chemistry A101

Dynamic covalent chemistry (DCC) has attracted great research interest in the past decade due to its power in highly efficient synthesis of complex molecular architectures from simple small molecule precursors. This talk will cover efficient synthesis of shape-persistent, structure-tunable 2-D macrocycles as well as 3-D molecular cages via metathesis reactions. These well-defined molecules have shown […]

Poly(Lipid) Supramolecular Assemblies: Structure, Receptor Functionalization, and Bioanalytical Applications

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Scott Saavedra Presents:

Wednesday April 4th, 2012 at 4:00 PM in Chemistry A101

The use of fluid phospholipid bilayers as biocompatible structures in receptor-based sensors and arrays may be compromised by their chemical and mechanical instability. One strategy to address this problem is the use of synthetic lipids, substituted with reactive groups, to create polymerized bilayer structures. We have been investigating polymerization of dienoyl-functionalized lipids in an effort […]

Selective Chemistry of “Teflon” Buckyballs

James Whitaker Presents:

Tuesday April 3rd, 2012 at 4:00 PM in Chemistry A101

Collective Plasmon Modes in Nanoparticle Assemblies

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Prof. Stephan Link Presents:

Thursday March 22nd, 2012 at 4:00 PM in Chemistry A101

In order to incorporate plasmonic nanoparticles into functional devices it is necessary to understand how surface plasmons couple as particles are arranged into ordered structures.  Bottom-up assembly of chemically prepared nanoparticles facilities strong plasmon coupling due to short interparticle distances, but also gives to rise to defects in particle size, shape, and ordering.  Single particle […]

A Dual Site Catalyst for Hydride Manipulation

Travis Williams Presents:

Tuesday March 20th, 2012 at 4:00 PM in Chemistry A101

Small Molecule Control of Intracellular Protein Levels

Craig Crews Presents:

Monday March 19th, 2012 at 4:00 PM in Chemistry A101

Chiral Phosphoric Acid Catalysis: Activation Modes and Relevant Examples

Eric Newcomb Presents:

Monday March 12th, 2012 at 4:00 PM in Chemistry A101

Ultrafast Spatially Resolved Carrier Dynamics in Individual ZnO Rods

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John Papanikolas Presents:

Thursday March 8th, 2012 at 4:00 PM in Chemistry A101

  We have used femtosecond transient absorption microscopy to investigate the charge carrier dynamics in needle-shaped ZnO rods that are 10-30 mm in length and 200-1800 nm in diameter. Localized photoexcitation of the structure (e.g. end versus middle) is accomplished through a two-photon excitation of the ZnO by a 730 nm near-infrared laser pulse focused […]

Colorado ACS Section Scientific Achievement Award Dinner Honoring Rick Finke


Thursday March 8th, 2012 at 5:30 PM in Grey Rock Room, Lory Student Center

Please join fellow colleagues for the Colorado ACS Section Scientific Achievement Award dinner and presentation to Dr. Richard Finke, Professor of Chemistry, on Thursday, March 8.  The award presentation will be held at the CSU Lory Student Center in the Grey Rock Room.  The meeting will begin with a social at 5:30 p.m. followed by […]

Kinetics in Dye-Sensitized Solar Cells: Absorption and Emission Techniques

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Johnathan Hatfield Presents:

Wednesday March 7th, 2012 at 4:00 PM in Chemistry A101

Dye-Sensitized Solar Cells (DSSCs) have demonstrated potential as a cheaper, mass-producible solar harnessing alternative since O’Regan and Gratzel reported the efficiency of their mesoporous TiO2 based device in 1991.  Since then, a great deal of effort has been spent to understand and optimize the various chemical processes involved in DSSCs.  However, as is often the […]

Metal Organic Frameworks for the Storage and Generation of Nitric Oxide

Jackie Harding Presents:

Tuesday March 6th, 2012 at 4:00 PM in Chemistry B202

Using Small Molecules to Engineer and Explore Human Immunity

David Spiegel Presents:

Monday March 5th, 2012 at 4:00 PM in Chemistry A101

Development of Anticancer Nanomedicine

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Prof. Jianjun Cheng Presents:

Friday March 2nd, 2012 at 4:00 PM in Chemistry A101

Nanoparticles are promising carriers for the delivery of chemotherapeutics for cancer therapy because they are able to carry large payload of therapeutic modalities, extravasate leaky tumor vasculatures, and mediate sustained drug release in tumor tissues. However, there has been only very limited clinical success of anticancer nanomedicine because of tremendous issues related to their formulation.  […]

Colloidal Stability Characterization of Silver Nanoparticles Through Light Scattering Techniques

Rebecca Bayer Presents:

Wednesday February 29th, 2012 at 4:00 PM in Chemistry A101

Lights… Camera… Chemistry! Single-Molecule Imaging Tools for Synthetic Chemists & Dual Catalysis with Gold

Suzanne Blum
Suzanne Blum Presents:

Tuesday February 28th, 2012 at 4:00 PM in Chemistry A101

Direct Dioxygen-Coupled Palladium Catalyzed Oxidation

Aaron Bedermann Presents:

Monday February 27th, 2012 at 4:00 PM in Chemistry A101

Modern Chemistry Enabled: High Throughput Experimentation Chemistry and the Merck/UPenn GOALI Collaboration

Spencer Dreher Presents:

Wednesday February 22nd, 2012 at 4:00 PM in Anatomy/Zoology Building W205

Designer Plasmonic Antennas for Controlling Light at the Nanoscale

Jennifer Shumaker-Parry Presents:

Wednesday February 22nd, 2012 at 4:00 PM in Chemistry A101

Focusing of local electromagnetic fields in plasmonic materials produces enhanced signals and enables control of light propagation for spectroscopy and energy transfer applications. We are creating plasmonic architectures with structural control in order to tailor this optical antenna-like behavior. Two approaches will be described: 1) preparation of organized multi-nanoparticle assemblies based on a novel and […]

Distinguishing Homogeneous and Heterogeneous Water Oxidation Catalysis when Beginning with Discrete Polyoxometalates

Jordan Stracke Presents:

Tuesday February 21st, 2012 at 4:00 PM in Chemistry B202

Drugging the Undruggable

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Hubert Yin Presents:

Monday February 20th, 2012 at 4:00 PM in Chemistry A101

Detection of Common Explosives Through Spray- and Plasma-based Ambient Mass Spectrometry Techniques

Nicole Forseth Presents:

Wednesday February 15th, 2012 at 4:00 PM in Chemistry A101

Novel Inorganic Ligands for Nanocrystals and their Photovoltaic Implications

Aaron Wolfe Presents:

Tuesday February 14th, 2012 at 4:00 PM in Chemistry B202

Photoredox catalysis: Enabling chemical synthesis with visible light

Corey Stephenson Presents:

Monday February 13th, 2012 at 4:00 PM in Chemistry A101

The Brivanib Alaninate Process: Route Selection and Strategic Development

Lori Spangler Presents:

Monday February 13th, 2012 at 4:00 PM in Chemistry A101

Spectroscopic Studies of Organic Photovoltaic Materials

Dr. Nikos Kopidakis Presents:

Friday February 10th, 2012 at 4:00 PM in Chemistry A101

Fundamental and Applied Studies of Photoactive Materials Containing Perfluoroalkylfullerene Acceptors

Bryon Larson Presents:

Tuesday February 7th, 2012 at 4:00 PM in Chemistry B202

Catalytic Dehydrative SN2′ Reactions: Mechanistic and Synthetic Implications

Aaron Aponick Presents:

Monday February 6th, 2012 at 4:00 PM in Chemistry A101

Resolving the Mechanism of H-bond Switching and Ligand Exchange in Aqueous Ionic Solution

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Professor Kelly Gaffney Presents:

Thursday February 2nd, 2012 at 4:00 PM in Chemistry A101

Micelles enhance luminescence of Eu(DBM)3Phen complexes for biological applications

Ashli Simone Presents:

Tuesday January 31st, 2012 at 4:00 PM in Chemistry B202

C-H Activation Reactions Promoted by Iridium and Palladium

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James Stambuli Presents:

Monday January 30th, 2012 at 4:00 PM in Chemistry A101

The Tissue Engineering-Surface Science Intersection: Advancing 3D Biology with 2D Methodology

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Dr. Buddy Ratner Presents:

Friday January 27th, 2012 at 4:00 PM in LSC 228

Imaging Chemical Reactions Inside Living Cells

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Professor Christine Payne Presents:

Thursday January 26th, 2012 at 4:00 PM in Chemistry A101

Characterization of Hydrogen Storage Materials by Neutron and X-Ray Powder Diffraction

Joshua Thomas Presents:

Wednesday January 25th, 2012 at 4:00 PM in Chemistry A101

Synthetic Studies of Bioactive Natural Products

Jiong Yang Presents:

Tuesday January 24th, 2012 at 4:00 PM in Chemistry A101

Probing the Structure and Redox Activity of the Amyloidogenic Region of the Prion Protein with Copper Metallopeptides

Ruthy McCoy Presents:

Tuesday January 17th, 2012 at 4:00 PM in Chemistry B202