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Chemistry Department

Research

Summer Research Students 2013Have you ever wondered…

How particles affect climate?

How alcohol is toxic to the liver?

How laser light affects molecules?

How natural products are synthesized?

How green experiments are developed?

These and many other perplexing questions are being investigated every day at ºÚÁϲ»´òìÈ.
Explore below the diverse research projects being conducted in the Chemistry Department or
.
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Undergraduate Research Opportunities

Dr. Andres Caro:Ìý Biological Chemistry

The Caro Research Group is interested in the biochemical mechanisms by which alcoholic beverages produce liver damage.Ìý We use cell fractions (endoplasmic reticulum, mitochondria), cells (liver cells in culture), and experimental animals (mice), and analytical, biological, and cellular chemical techniques including HPLC, polarography, real time PCR, RT-PCR, ELISA, western blot, chemiluminescence, fluorimetry, spectrometry, flow cytometry, and fluorescence microscopy.Ìý

Dr. Bill Gunderson: ÌýBioinorganic Chemistry

Dr. Bill Gunderson’s research is in the field of bioinorganic chemistry. Research in the Gunderson group has two aims: 1) determine the role of manganese in biomacromolecules, including enzymes and DNA structures, and 2)ÌýdevelopÌýlow-cost instrumentation for biochemical and biophysical studies. The first aim includes investigations of the enzyme, toxoflavin lyase, a Mn-containing enzyme that helps protect rice crops from bacterial infections. These enzymatic studies include enzyme kineticsÌýand active site-structure studiesÌýusing electron paramagnetic resonance (EPR) spectroscopy and other spectroscopic methods. Dr. Gunderson is also investigating the binding characteristics of Mn to DNA hairpins and three-way DNAÌýjunctions using EPR spectroscopy. The second aim includes developing spectroscopic techniques using 3D printing technology and Arduino microcontrollers.

Dr. David Hales: Physical Chemistry

Our work targets the thermodynamic landscape associated with protein conformational stability. We obtain thermodynamic parameters such as Gibbs free energy, enthalpy, and entropy changes for thermal denaturation, through variable temperature nano-electrospray ionization ion trap mass spectrometry (vT-nESI-ITMS). We are also attempting to determine the thermodynamic aspects of denaturation through dielectric means, by varying the overall polarity of the solvent mixture. This work is a continuing collaboration with scientists at Indiana University.

Dr. Courtney Hatch: Analytical/Atmospheric Chemistry

The Hatch Research Group uses an integrative and multidisciplinary approach to study the effects of natural aerosols on the Earth system. We aim to better understand how natural aerosol influences atmospheric chemistry and climate. Currently, we are working on two ongoing research projects. ÌýThe first project combines theoretical and experimental results to predict the cloud condensation nuclei (CCN) activity of natural insoluble aerosols from water adsorption measurements on mineral dusts and volcanic ash using Fourier Transform Infrared (FT-IR) spectroscopy. ÌýThe second project aims to explore the chemical composition of atmospheric aerosols using a high-volume aerosol sampler for collection of particles, followed by chemical characterization using ion chromatography (IC) and gas chromatography/mass spectrometry (GC/MS)

Dr. Peter Kett: Physical Chemistry

In the Kett Research Group we are interested in studying surface and interfacial phenomena. Specifically we look at how solid surfaces interact with adsorbed molecules and how the adsorption process can be controlled through changes in ionic strength, pH, and surface charge. Currently the group is focused on developing a kinetic model for the formation of supported lipid bilayers (SLBs) on a silicon dioxide (SiO2) surface. SLBs are a class of model biological membrane in which a phospholipid bilayer is supported on a metal or non-metal surface. They are used as mimics of biological cell membranes as the large number of different molecules that are in a cell membrane makes it difficult to determine the structure, dynamics and interactions of each individual membrane component. Although SLBs can be formed on a number of different surfaces, they do not form on all surfaces and it is not usually possible to make an a priori prediction as to whether a particular combination of phospholipid concentration, surface, salt concentration, temperature, and solution pH will result in the formation of an SLB. By monitoring the real time formation of SLBs using a Quartz Crystal Microbalance (QCM) we are developing a mechanistic model that will allow us to determine how each of these experimental conditions affects the formation of SLBs.Ìý