First name,Last name,Preferred title,Overview,Position,Department,Individual
Francois,Gabbai,Professor,"Our research is concerned with the chemistry of both organic and organometallic polyfunctional Lewis acids. While an important component of our work deals with the synthesis of new examples of such polyfunctional Lewis acids, it is our ultimate intent to harness and utilize the cooperative effects occurring in such systems for the discovery of unusual structures, bonding modes, supramolecules and reactivities. Our research efforts present important ramifications in the domain of molecular recognition, supramolecular materials and catalysis.",Faculty Affiliate||Professor,Energy Institute||Chemistry,https://scholars.library.tamu.edu/vivo/display/n0d5d68bb
Melissa,Grunlan,Professor,"Prof. Grunlan's research is focused on the development of polymeric biomaterials for medical devices having resistance to biological adhesion and for implantable scaffolds used in regenerative engineering. The unique properties of these biomaterials afford the opportunity to overcome barriers associated with treating various diseases and medical conditions. Specifically, her research has focused on materials for implanted glucose biosensor membranes [to extend sensor lifetime], hemodialysis catheters [to reduce clotting and infection rates], self-fitting tissue scaffolds [to heal bone defects due to injury, tumor resection or congenital birth defect] and cartilage resurfacing [as an alternative to total joint replacement].",Professor||Professor||Professor,Biomedical Engineering||Materials Science and Engineering||Chemistry,https://scholars.library.tamu.edu/vivo/display/n1bfcff20
Sarbajit,Banerjee,Professor,"Much of our research program is directed at understanding the interplay between geometric and electronic structure at interfaces as well as in solid-state materials and to examine how this translates to functional properties. Our research thus spans the range from materials synthesis, mechanistic understanding of crystal growth processes, and structural characterization to device integration and mechanistic studies of catalysis and intercalation phenomena. We further seek to translate fundamental understanding of interfaces and materials to develop functional thin films and devices for a wide range of applications ranging from Mott memory to thermochromic window coatings and thin films for the corrosion protection of steel.",Professor||Faculty Fellow||Faculty Affiliate,Center for Health Systems and Design||Energy Institute||Chemistry,https://scholars.library.tamu.edu/vivo/display/n1fff3688
Emile,Schweikert,Professor,"Our research explores the extreme limits of analytical chemistry: the characterization of atto to zeptomole quantities of molecules. The aim is to detect such amounts of analyte within nanometric surface volumes. The goal is chemical imaging of surfaces with exquisite spatial resolution. The first challenge is to conceive methods and instrumentation for the accurate identification of as little as a few thousand molecules. The second challenge is to convert a measurement into analytical information. A measurement by itself, even a spectacular one such as detection of a single atom or molecule, is not sufficient. Measurements must be related to the physico-chemical system sampled in terms of concentration and/or spatiotemporal localization.
Our experimental procedure is based on the desorption of atomic and molecular species when a solid is bombarded with energetic massive projectiles such as, for example, C60+ or Au4004+ . Their impact causes abundant emission of neutral and ionized atoms, molecules and molecular fragments. The desorbed ions are detected by time-of-flight mass spectrometry. The experimental procedure is that of secondary ion mass spectrometry with two innovations: the massive nature of the projectile and the mode of bombardment which is in a sequence of individual massive cluster impacts each isolated in time and space. Multiple ions can be ejected from a single impact. Given the size of the projectile (<= 3 nm in diameter), the co-ejected ions must originate from molecules colocated within nanometric dimensions.
The new capabilities for detecting, localizing and tracking small numbers of molecules (10-18 to 10-21 moles) are tested on surfaces, membranes, and nano-objects selected for their relevance in catalysis, microelectronics, environmental and biomedical research.",Professor,Chemistry,https://scholars.library.tamu.edu/vivo/display/n233d0627
David,Russell,Professor,"My research focuses on proteomics, lipidomics, biophysical chemistry and application and development of mass spectrometry, such as ""label-free"" nano-particle based biosensors and novel peptide/protein isolation and purification strategies. We are also investigating the structure(s) of model peptides in an effort to better describe folding/unfolding and structure of membrane and intrinsically disordered (IDP) proteins. Peptides take on very different 2?, 3? and 4? structure, which determine or influence bio-activity. In the presence of lipid vesicles peptides can exist as solution-phase species, ""absorbed"" on lipid bilayers or ""inserted"" (as a monomer or multimer) in lipid bilayers. By what mechanism do peptides interact with lipid membranes to affect these structural changes, how do peptide-lipid interactions promote self-assembly to form intermediates that eventually yield aggregates, i.e., amyloid fibrils, or how does metal ion coordination affect the structure of metalloproteins? Mass spectrometry-based experiments, hydrogen/deuterium (H/D) exchange, chemical 'foot-printing' and gas-phase (ion-molecule and ion-ion reaction chemistry) and solution-phase chemical modifications, have expanded our abilities to address such questions, and new instrumental approaches, esp. ion mobility spectrometry (IMS) combined with enhanced molecular dynamics simulations (MDS), have become standard tools for structural-mass spectrometry studies. Over the past several years we have either acquired or developed novel, next-generation IM-MS instruments that are redefining cutting-edge structural-mass spectrometry research as well as cutting-edge computational tools essential to carry out these studies. Our new laboratories in the Interdisciplinary Life Sciences Building (ILSB) provides exciting opportunities for collaborative, interdisciplinary research with chemical-biologists, biochemists and other chemists.",Professor,Chemistry,https://scholars.library.tamu.edu/vivo/display/n280e03e6
Tadhg,Begley,Distinguished Professor,"The Begley Group is interested in the mechanistic chemistry and enzymology of complex organic transformations, particularly those found on the vitamin biosynthetic pathways. We are currently working on the biosynthesis of thiamin, molybdopterin, pyridoxal phosphate and menaquinone. Our research involves a combination of molecular biology, protein biochemistry, organic synthesis and structural studies and provides a strong training for students interested in understanding the organic chemistry of living systems and in pursuing careers in biotechnology, drug design or academia.
Thiamin pyrophosphate plays a key role in the stabilization of the acyl carbanion synthon in carbohydrate and amino acid metabolism. The biosyntheses of the thiamin pyrimidine and thiazole are complex and are different from any of the characterized chemical or biochemical routes to these heterocycles. We are particularly interested in cellular physiology and the mechanistic enzymology of thiamin biosynthesis. As an example of one of the complex transformations on this pathway, the figure below shows the structure of the pyrimidine synthase catalyzing the complex rearrangement of aminoimidazole ribotide (left) to the thiamin pyrimidine (right).",Distinguished Professor,Chemistry,https://scholars.library.tamu.edu/vivo/display/n498aa35b
Soon-Mi,Lim,Lecturer,,Associate Graduate Advisor||Instructional Assistant Professor,Chemistry||Chemistry,https://scholars.library.tamu.edu/vivo/display/n53c3c8a0
Arthur,Laganowsky,Associate Professor,"A long-term research goal of our group is to determine the molecular basis behind protein-lipid interactions and how these interactions can modulate the structure and function of membrane proteins, including their interactions with signaling molecules. What determines the selectivity of membrane proteins towards lipids, and the coupling between lipid binding events and function remains a key knowledge gap in the field; one that if addressed will significantly advance our understanding of how lipids participate in both normal and pathophysiological processes of membrane proteins. Therefore, there is a critical need to expand our fundamental knowledge in this emerging field by applying and developing innovative approaches to elucidate how lipids modulate the structure function of membrane proteins. To this end, we are studying a number of ion channels, receptors and other types of membrane proteins.",Associate Professor,Chemistry,https://scholars.library.tamu.edu/vivo/display/n542411e4
Abraham,Clearfield,Distinguished Professor,"Our research interests are focused in solid state and materials chemistry and encompass a wide variety of projects. An important goal is the ability to design and synthesize new materials whose structure and properties can be predicted and controlled. Layered compounds are amenable to manipulation to produce new structures because of the weak forces between layers. We have learned how to separate the layers of several classes of compounds and are reconstituting them into novel materials. For example, we have prepared staged materials in which alternating layers are hydrophobic and hydrophilic.
The surfaces of our layered materials react with a variety of molecules to bond them to the surface. We are developing such materials for drug delivery, heterogeneous catalysis, and polymer-nanoparticle composites.
Single crystal X-ray diffraction has been the key tool in elucidating the structure of solids. For many compounds, single crystals are unavailable so that indirect methods need to be used. We pioneered the solution of crystal structures from X-ray powder data and have had considerable success. The methods need to be improved and extended to more complex systems such as poorly crystallized materials. Combined use of X-ray, neutron and synchrotron methods are in progress and extension to EXAFS and amorphous scattering techniques is contemplated.",Distinguished Professor,Chemistry,https://scholars.library.tamu.edu/vivo/display/n6dc4bd81
Marcetta,Darensbourg,Distinguished Professor,"Bio-inspired Catalysts for Hydrogen Production: The ultimate, home-run, goal of our work is to synthesize and develop a robust, highly active hydrogen-producing catalyst comprised of earth-abundant transition metals within a ligand environment that is inspired by the biological Figure 3hydrogenase (H2ase) enzyme active sites. Progress in precise structural modeling of the illusive ""rotated"" structure displayed in the as-isolated, mixed-valent FeIIFe state in the past decade has permitted in depth analysis of electronic structure by Mo ssbauer, EPR (ENDOR), and computational chemistry. New electrocatalysts for hydrogen production: The connection between the Fe(NO)2 unit and the Fe(CX)3 (X = O or N) unit found in hydrogenase enzyme active sites offers opportunity for design of new catalysts, one of which is shown. In this regard we explore the ability of N2S2 metal complexes to bind as metallodithiolate ligands to various metal acceptors. The properties of such complexes vary The connection of these to light harvesting molecules for dye sensitized, sacrificial electron donor, hydrogen production is also of interest. When Iron Meets Nitric Oxide: Good Chemistry, Intriguing Biology. The affinity of iron for diatomic molecules, O2, CO, N2, and NO, is central to the most important of life processes, including those of human physiology. Figure 6In this research area we target synthetic chemistry involving dinitrosyl iron complexes (DNICs) that serve as biomimetics of products of FeS cluster degradation by excesses of NO, or as derived from the chelatable iron pool (CIP) in cells. The electronic ambivalence of the DNIC unit is expressed in the ease with which it interconverts between oxidized and reduced forms, {Fe(NO)2}9 and {Fe(NO)2}10, respectively (Enemark/Feltham notation), and serves as impetus to explore analogous reactions known to involve the CuII/CuI redox couple. The accessory ligands which stabilize one redox level over the other, including N-heterocyclic carb",Distinguished Professor||Faculty Affiliate,Energy Institute||Chemistry,https://scholars.library.tamu.edu/vivo/display/n6f445741
Karen,Wooley,Distinguished Professor,"Our research activities combine organic syntheses, polymerization strategies and polymer modification reactions in creative ways to afford unique macromolecular structures, which have been designed as functional nanostructures, polymer systems having unique macromolecular architectures, and/or degradable polymers. The emphasis is upon the incorporation of functions and functionalities into selective regions of polymer frameworks. In some cases, the function is added at the small molecule, monomer, stage, prior to polymerization, whereas, in other cases, chemical modifications are performed upon polymers or at the nanostructure level; each requires a strategic balance of chemical reactivity and the ultimate composition and structure.",Distinguished Professor,Chemistry,https://scholars.library.tamu.edu/vivo/display/n7d5d2fbd
Coran,Watanabe,Associate Professor,"Our research group is actively characterizing the biosynthetic genes of this pathway, which involves a variety of techniques and strategies including: cloning and overexpression of genes, disruption/knockout of genes, enzymology, as well as chemical synthesis/isotopic labeling studies. Functional characterization of the genes of the pathway will not only shed light on the mechanism of azabicycle formation but will also pave the way for genetic engineering of the pathway and the development of new therapeutic methodologies.
We have also been investigating the biosynthesis and cellular effects of cycloterpenals and their derivatives. Cycloretinal (all-trans retinal dimer), a representative member of this family of natural products is attributed to causing age-related macular degeneration (AMD). AMD is the leading cause of blindness in adults over the age of 50 that can lead to the loss of central vision. One of the most common early characteristic features of AMD (the dry form) is the accumulation of yellow deposits in the eye called drusen. A more severe form of the disease, the wet form, is characterized by neovascularization (abnormal blood vessel formation). Our research group aims to study the role of beta-lactoglobulin in cycloretinal synthesis in the eye as an environmental (dietary), non-genetic contributor of AMD. This involves tracking BLG in the eye, monitoring the formation of cycloretinal, and elucidating the mechanism of cycloretinal formation. Research strategies include: chemical synthesis, enzymology, fluorescence/confocal microscopy, PET imaging, dual modality OCT/fluorescence lifetime imaging.",Associate Professor,Chemistry,https://scholars.library.tamu.edu/vivo/display/n9a83891f
Frank,Raushel,Distinguished Professor,"Enzymes catalyze a remarkable variety of chemical reactions with extremely high rate enhancements and very selective substrate specificity. The research efforts in our laboratory are directed towards a more complete understanding of the fundamental principles involved in enzyme-catalyzed chemistry and the dependence on protein structure. The pursuit of this information will provide the framework for the rational and combinatorial redesign of these complex molecules in an effort to exploit and develop the properties of enzyme active sites for a variety of chemical, biological, and medicinal uses. The techniques that we are using to solve these problems include steady-state and stopped-flow kinetics, NMR and EPR spectroscopy, X-ray crystallography, and the synthesis of inhibitors and suicide substrates. We are also using recombinant DNA methods to construct new proteins with novel catalytic properties. These efforts are currently being directed to the reactions catalyzed by phosphotriesterase and enzymes involves in the degradation of lignin and the metabolism of novel carbohydrates from the human gut microbiome.
The phosphotriesterase enzyme catalyzes the hydrolysis of organophosphate insecticides and other toxic organophosphate nerve agents. We have discovered that the active site of this protein consists of a unique binuclear metal center for the activation of water. We are now investigating the structure and properties of this metal center as a model system for the evolution of enzyme structure and function. Toward this end we have mutated the active site of this enzyme in a research project to create novel enzymes with the ability to detect, destroy, and detoxify various chemical warfare agents such as sarin, soman, and VX. The Raushel laboratory is also engaged in a large scale research project that is focused on the development of novel strategies for the discovery of new enzymes.",Distinguished Professor,Chemistry,https://scholars.library.tamu.edu/vivo/display/na84f2fec
Dong,Son,Professor,"The main focus area of the research in our laboratory is (i) chemical synthesis of nanoscale hetero-structures of semiconducting and magnetic materials and (ii) real-time laser spectroscopic investigation of the dynamic electronic and magnetic properties of the nanostructures prepared from (i). Ultimately, we would like to obtain fundamental understanding of how the dynamic optical, electronic and magnetic properties in structurally complex nanoscale materials can be controlled by tuning their chemical and structural parameters. The knowledge obtained from these researches lays fundamental background essential in many practical applications, such as designing nanoscale electronic devices and light energy-harvesting materials.",Faculty Affiliate||Professor,Energy Institute||Chemistry,https://scholars.library.tamu.edu/vivo/display/nbddedc3d
Kevin,Burgess,Professor,"We use novel strategies Exploring Key Orientations (EKO) that feature datamining to compare simulated preferred conformers of chemotypes we design with key features at protein-protein interfaces. Many chemotype candidates can be screened against one PPI, or one chemotype can be screened against all the PPI interfaces in the PDB. Virtual hit chemotypes are prepared in my lab, then tested against protein-protein interactions of biomedicinal interest using an array of biophysical and cellular assays.
We also design small molecules to target cell surface receptors that are selectively overexpressed in cancer cells. Much or our work has been focused on the TrkC receptor that is particularly important to metastatic breast cancer and melanoma. Going forwards we are interested in expanding the targets to include cell surface receptors that are overexpressed when cancer cells undergo aberrant epithelial to mesenchymal transitions (EMT) to produce circulating tumor cells and cancer stem cells. Much of this work involves design and synthesis of the small molecules for this targeting.",Professor,Chemistry,https://scholars.library.tamu.edu/vivo/display/nc4a5cad4
Shiqing,Xu,Assistant Professor,"Our research aims to develop innovative synthetic methodologies and therapeutic approaches, and apply them to solving pressing problems of biological and medical importance. New synthetic methodologies and strategies (e.g. non-traditional disconnections and C-H functionalization) have great impacts on the discovery of transformational medicines by enabling the rapid and efficient synthesis of novel, diverse, and complex biologically active molecules. New therapeutic approaches (e.g. targeted covalent inhibition and targeted protein degradation) provide new opportunities to address traditionally ""undruggable"" disease targets.
We anticipate that the combination of the efforts in the development of novel synthetic methodologies and therapeutic approaches will advance drug discovery in diseases of unmet need, and achieve the research goal of identifying small-molecule probes and drug candidates that specifically remove/inhibit disease-causing proteins in cells and animal models and ultimately impact human health. Representative research directions include:
1. COVID-19 drug discovery via small-molecule-induced targeted protein inhibition and degradation
2. Late-stage functionalization of drugs and peptides & its applications in drug discovery
3. Organoboron chemistry and its medical applications",Assistant Professor,Chemistry,https://scholars.library.tamu.edu/vivo/display/ncd983c6e
Kim,Dunbar,Distinguished Professor,"Research in the Dunbar group spans topics in synthetic, structural and physical inorganic and bioinorganic chemistry. The use of a range of tools including spectroscopy, X-ray crystallography, magnetometry, electron microscopy, mass spectrometry and electrochemistry reflect the breadth of problems under investigation.",Distinguished Professor,Chemistry,https://scholars.library.tamu.edu/vivo/display/ndd473437