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Chemistry Research The chemistry department values active student participation in original research projects. Here are some of the many research areas in which our faculty are involved. n Dr. Anita Brown – Physical/Computational Chemistry [email protected] Have you ever wondered why two molecules might “stick together?” or whether a molecule would prefer to “hang out” with one substance over another? If so, then you may be interested in computational chemistry research with Dr. Brown. Using computer programs, we build models of individual molecules, then use principles of physics to predict how those molecules will behave. Currently, Dr. Brown’s group is investigating pi-pi and pi-cation interactions in biomolecular systems. One of these projects involves the possible inhibition of an enzyme involved in tuberculosis infections. CONTACT INFORMATION For information on the Chemistry Department: 410-543-6480 n Dr. n Dr. n Dr. [email protected] For over a decade the NIH has funded the Protein Structure Initiative (PSI), whose goal is the 3D structure determination of a broad range of proteins. Of the approximately 4,000 PSI determined protein structures, over 1,500 are of unknown function. Linking protein function to structure and eventually gene sequence would have major impact on biology and medicine, though currently protein function must be characterized using classic biochemical techniques. Dr. Dewald’s research focuses on characterizing putative (probable) enzymes with known structures, determined by the PSI, but with unknown/untested function. Bioinformatics is used to select proteins of interest, predict their function, and design assays to test and characterize the function spectrophotometrically. Functional results will be published and added to databases including TOPSAN Proteopedia and the PSI Knowledgebase. [email protected] Research in Dr. Friese’s lab is centered on designing and making new molecules and ligands that can be used to help answer interesting chemical questions. For example, for one of the projects students investigate how ligands can be used to increase the separation selectivity and efficiency of environmentally relevant ions. A second project has students working on an alternative method for the synthesis of compounds which contain the dihydroisobenzofuran substructure using an intramolecular cyclization reaction. These students are currently exploring the versatility of this method in order to adapt this new cyclization to the making of natural products, with special interests toward a recently isolated natural product, pestacin. [email protected] Students in Dr. Habay’s laboratory are designing new and efficient chemical reactions used to produce important organic building blocks. These building blocks can be used in the construction of new pharmaceuticals or molecular tools for biology. As one example, Dr. Habay’s students have recently discovered a new ring-forming reaction that will be used to produce molecules with the ability to inhibit the enzyme thrombin, thereby preventing blood clotting. In another project, students have synthesized small molecules that are used as tools to study the neuropeptide S receptor in the brain; a newly discovered and important receptor that plays a role in anxiety, asthma and diet. Students in Dr. Habay’s laboratory work as molecular architects, designing and building molecules “from scratch.” Applying principles of organic chemistry from the classroom, students use advanced lab techniques and collaborative problem solving to build better molecules more quickly and efficiently. Alison Dewald – Biochemistry www.salisbury.edu/Chemistry Seth Friese – Organic Chemistry Stephen A. Habay – Organic Chemistry Continued on back SALISBURY n Dr. Fredrick Kundell – Physical/Computational Chemistry [email protected] For the last eight years, Dr. Kundell has been using computational chemistry to examine the origin of life on Earth. This work led to an article titled “A Suggested Pioneer Organism for the Wachershauser Origin of Life Hypothesisi” published online in the journal Origin of Life and Evolution of Biospheres during spring 2010. This article suggests that an initial RNA was formed on the growing edge of small pyrite crystals. The next step in this project is the computational examination of a growing pyrite crystal surface as a catalytic source for other biologically important compounds. n Dr. n Dr. [email protected] Dr. Luttrell and his students develop and apply new computational methods that improve the understanding of data generated by chemical instrumentation. This interdisciplinary field of analytical chemistry, known as chemometrics, is an exciting blend of chemistry, mathematics and computer programming. Dr. Luttrell’s group is involved in several chemometricsbased research projects. Currently, they are analyzing biochemical high performance liquid chromatograms using innovative regression fusion techniques. Regression fusion allows us to determine which sections of the chromatograms are more strongly related to analyte concentration. By placing additional emphasis on these sections, they are able to decrease the error associated with the final quantitative results. Their next goal is to apply “Moving Window” regression fusion to further improve these results. [email protected] In Dr. Miller’s laboratory, we are studying the effect of seasonal temperature changes on the rate of denitrification using ion sensitive probes and chemical analyses. We are also using molecular techniques to look for one or more microbial genetic markers that can indicate the boundary where wetland denitrification begins. In a second project, we are using HPLC and NMR to examine the biochemical function and structural properties of nordihydroguaretic acid (NDGA) and how they may influence NDGA’s chemical interactions with proteins, membranes and other small molecules. Robert D. Luttrell – Analytical Chemistry Katherine Miller – Biochemistry n Dr. Ed Senkbeil – Biochemistry/ Chemical Education [email protected] Dr. Senkbeil and his students are developing a Chemistry Outreach Program for the surrounding area. Science students who participate learn to perform numerous chemical demonstrations and “hands-on” activities. Our goal is for students and other audiences to gain a deeper appreciation of science/ chemistry while having fun! Students develop a variety of skills, including selection of demonstrations, understanding of the relevant chemistry of the demonstrations, practical knowledge of the chemicals used with an emphasis on safety and disposal, mechanics of performing the demonstration, and reflection/ assessment of the effectiveness of the demonstration. www.salisbury.edu/Chemistry SALISBURY