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Faculty
Anderson, Mary,
Ph.D., Assistant Professor
B.A. in Chemistry, Hollins College
Ph.D. in Biochemistry, Cornell
University Graduate School of Medical Sciences
Office: GRB 331
Phone: 940.898.2564
Lab:
GRB 207
email:
MAnderson3@mail.twu.edu
Primary
Teaching Area: Biochemistry
Research
Interests:
My group’s
research focuses on glutathione (GSH; L-g-glutamyl-L-cysteinylglycine), a very important
antioxidant. GSH is involved in many aspects of cellular defense and
pathogenesis and levels are low in many disease states. We focus on the
enzymology and structure-function relationships of the enzyme GSH synthetase
(GS). Using site-directed mutagenesis, we are studying the effects of changes on
activity and function of GS on the ATP binding site and catalytic mechanism,
role of several loop structures of GS, and the molecular nature of the patient
GS deficiencies. Most recently, we embarked on molecular modeling studies; these
modeling studies help explain our experimental findings and help guide our
future studies. A better understanding of the enzymes of GSH metabolism has
benefits including treatments GSH deficiency, as well as for selective
development of antibiotics and herbicides.
Bagci, G. Baris, Ph. D., Adjunct Assistant Professor
B. A. in Physics, Middle East Technical University, Turkey
Ph. D. in Physics, Middle East Technical University, Turkey
Office: SCI 105
Phone: 940.898.2550
Lab: SCI 005
Email: gbb0002@unt.edu
Primary Teaching Area: Calculus-based Physics
Research
Interests: My research is directed to understand the complex
systems through nonequilibrium statistical mechanics. I make use
of Tsallis entropy in order to have a firm understanding of
chemical reaction rates with temperature gradient and rotators. My
second topic of research is quantum information. I am in
particular interested in the definition of quantum divergences
and its relation within nonextensive framework. Recently, I have
participated in a project which took me from Boltzmann to
Tsallis and Renyi entropies by making use of Boltzmann's
original method called the orthodes.
Britt, Mark, Ph.D.,
Associate Professor
B.S. in Chemistry, Millsaps College
Ph.D. in Chemistry, University of
Oregon
Office: GRB 203B
Telephone: 940.898.2566
Lab: GRB 203
email:
MBritt@mail.twu.edu
Primary
Teaching Area: Physical
Biochemistry
Research
Interests:
Our research
investigates the role played by the bulk enzyme structure in the
enzyme catalytic event. Specifically we are testing a
hypothesis, the Shifting Specificity Model, to explain enzyme
catalysis generally. Our experiments involve kinetic and
thermodynamic measurements of interactions of enzymes with
catalytically relevant ligands.
Espinosa, James M., Ph.D.,
Associate Professor
B.S. in Physics, California
Institute of Technology
M.S.
in Physics, University of California, Los Angeles
Ph.D. in Physics, University of
California, Los Angeles
Office: SCI 213N
Telephone: 940.898.2558
email:
JEspinosa@mail.twu.edu
Primary
Teaching Area: Physics
Gill, Jack T., Ph.D.,
Professor
B.S. in General Science - Chemistry,
Mississippi State University
Ph.D. in Organic Chemistry,
Mississippi State University
Office: SCI 213B
Telephone: 940.898.2662
Lab: SCI 213B
email:
JGill@mail.twu.edu
Primary
Teaching Area: General Chemistry
Research
Interests: Chemical
Education
Johnson, James E., Ph.D.,
Professor
B.S. in Chemistry, University of
Minnesota
M.S.
in Chemistry, University of Minnesota
Ph.D. in Organic Chemistry,
University of Missouri, Columbia
Office: GRB 103
Telephone: 940.898.2567
Labs: GRB 108, 112,
205, 211, 213, and 215
email:
JJohnson@mail.twu.edu
Primary
Teaching Area: Organic Chemistry
Research Interests:
Chemistry of organic nitrogen compounds: mechanisms of nucleophilic
substitution reactions on the carbon-nitrogen double bond;
mechanisms of Z/E isomerization of compounds containing a
carbon-nitrogen double bond (photochemical, thermal, acid- and
base-catalyzed); synthesis of hydroximoyl halides, hydroximates,
thiohydroximates, amidoximes, oximes, and other compounds
containing a carbon-nitrogen double bond; photochemical
reactions of amides, alkyl benzohydroxamates, and other
structurally related organic nitrogen compounds; synthesis of
indoles that are structurally related to the Aplysinopins.
Jones, Richard C., Ph.D.,
Associate Professor
B.A. in Geology, West Virginia
University
M.A.T.
in Geology, University of Texas at Dallas
Ph.D. in Curriculum and
Instruction-Science, Texas A&M University
Office: SCI 213P
Telephone: 940.898.2557
email:
RJones2@mail.twu.edu
Primary
Teaching Area: Science and Science Education
Research Interests:
Science Education
Maguire, Cynthia,
Lecturer II
B.S. in Medical Technology, Central
State University, Edmond OK
M.S.
in Biology, Texas Woman's University
M.S. in Chemistry, Texas
Woman's University
Office: SCI 213L
Telephone: 940.898.2563
email:
CMaguire@mail.twu.edu
Primary
Teaching Area: General
Chemistry and Science
Peebles, Lynda, Ph.D., Senior
Lecturer II
B.S. in Chemistry, Harding
University
Ph.D. in Physical Chemistry,
University of North Texas
Office: SCI 213E
Telephone: 940.898.2556
email:
LPeebles@mail.twu.edu
Primary
Teaching Area: Physical
Chemistry
Research Interests:
Chemical Education
Rawashdeh-Omary, Manal, Ph.D., Assistant Professor
B.S. in Chemistry, Yarmouk
University
Ph.D. in Inorganic Chemistry,
University of Maine
Office: GRB 326
Telephone: 940.898.2565
Lab: 940.898.2477
email:
MOmary@mail.twu.edu
Primary
Teaching Area: Inorganic and Analytical Chemistry
Research Interests:
Synthesis and
characterization of novel new molecular materials, including
metallopolymers and small-molecule transition metal and
lanthanide complexes that have the potential for being used
in applications such as: Polymer light-emitting diodes,
PLEDs, Solar energy conversion (Organic Photovoltaics, OPVs),
Probes for biological systems, Optical sensors for
environmental pollutants
Riggs, Charles, Ph.D.,
Professor
B.S. in Chemistry and Mathematics,
Southwestern State College, OK
Ph.D. in Chemistry, Oklahoma State
University
Office: OMB 404A
Telephone: 940.898.2670
Lab: OMB 404B
email:
CRiggs@mail.twu.edu
Primary
Teaching Area:
Chemistry and Textiles
Research Interest:
Colloidal Chemistry and
Textile Polymers
Sheardy, Richard, Ph. D.,
Professor and Chair
B.S in Chemistry
M.S in Chemistry
Ph.D. in Organic Chemistry
Office: SCI 105B
Telephone: 940.898.2551
Lab:
email:
rsheardy@mail.twu.edu
Primary Teaching Area:
Biochemistry
Research Interest:
Our research focuses on the
conformational properties of nucleic acids: conformation,
conformational transitions, ligand binding, and the
thermodynamics associated with conformation, conformational
transitions and binding. We are primarily interested in how
sequence context and environmental conditions influence
these properties. We use a variety of biophysical
techniques such as UV/Vis and circular dichroism
spectroscopies, differential scanning calorimetry and
isothermal titration calorimetry.
We are particularly interested
in the interaction specificities of a new class of synthetic
porphyrazines with DNA. Preliminary results indicate that these
compounds can bind to DNA through electrostatic and hydrophobic
recognition. The primary focus of this work is to determine any
specificity in the binding with regards to DNA sequence and
secondary structure.
Shelton, G. Robert, Ph.D.,
Adjunct Assistant Professor
B.S. in Chemistry, Southern Illinois
University
M.S.
in Chemistry, Southern Illinois University
Ph.D. in Physical Organic Chemistry,
University of Florida
Office: SCI 213H
Telephone: 940.898.2554
email:
GShelton1@mail.twu.edu
Primary
Teaching Area: General
Chemistry
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