✖ close


☰ In This Section

Our professors are distinguished scholars, active researchers, published writers, and faithful Christians who demonstrate what it means to be both Christ-followers and leaders in their academic fields. As mentors and role models, they play a huge role in the integration of faith and learning at Bethel.

Rollin King

Department Chair and Professor of Chemistry | rking@bethel.edu | Started at Bethel: 2001

Research interests

King’s research is in the area of computational quantum chemistry, which is the application of quantum mechanics using the tools of modern computing to solve problems in chemistry. He is a primary software developer of the PSI4 quantum chemistry package, collaborating with scientists around the world. King’s current research focuses on modeling of polymers in organic photovoltaic cells, the chiro-optical properties of molecules in solution, the generation of machine-readable output for processing large numbers of computations, and efficient algorithms for geometry optimization. Guest Professor at the prestigious ETH-Zurich in both 2008 and 2014, he is the author of 35 peer-reviewed publications.

Alex Eaton

Assistant Professor of Chemistry | a-eaton@bethel.edu | Started at Bethel: 2015

Research interests

My research focuses on the isolation and identification of bioactive natural products.

Trey Maddox

Associate Professor of Chemistry | m-maddox@bethel.edu | Started at Bethel: 2008

Research interests

Maddox's research focuses on two classical areas of organic chemistry, synthesis and natural product isolation. His main project focuses on the synthesis of modified DNA and RNA nucleosides. These modified nucleosides can be used to study template directed polymerization, the core mechanism in DNA replication, transcription, and translation. His newest project is developing protocols for the isolation and identification of biologically active compounds in different herbal remedies that have been used by different cultures for centuries. This research aims to identify previously unknown compounds that demonstrate important biological activity.

Ashley Mahoney

Associate Department Chair and Professor of Chemistry | amahoney@bethel.edu | Started at Bethel: 2001

Research interests

Mahoney's research is in chemical education, both curriculum development and scholarship of teaching and learning projects. Mahoney is active with the POGIL (process-oriented guided inquiry learning) Project and has co-authored a collection of POGIL activities for the GOB (allied health) classroom available through Wiley. She has also assembled a national consortium of faculty to write inquiry laboratories for introductory courses. Her research projects focus on incorporating various learning styles in the classroom and providing engaging classroom experiences for underprepared students.

Matthew Neibergall

Assistant Professor of Chemistry | m-neibergall@bethel.edu | Started at Bethel: 2007

Research interests

Neibergall studies the mechanisms by which oxygenase enzymes activate O2 for insertion into organic compounds during cellular metabolism. The formation of DNA nucleotides from their RNA nucleotide precursors, the conversion of the amino acid phenylalanine to tyrosine and then to the neurotransmitter dopamine, and the production of prostaglandins are biological pathways that require oxygenase enzymes. Currently, his research group is studying nitrobenzene-1,2-dioxygenase, a Rieske non-heme iron oxygenase isolated from a soil bacterium that degrades the priority pollutant nitrobenzene. They apply a broad array of techniques in order to obtain mechanistic information, such as recombinant DNA technology, protein expression and purification, enzyme kinetics, chromatography, as well as several spectroscopic techniques.

Wade Neiwert

Professor of Chemistry and Pre-Medical Advisor | w-neiwert@bethel.edu | Started at Bethel: 2004

Research interests

Neiwert's research focuses on the study of a unique class of inorganic cluster-like compounds known as polyoxometalates (POMs for short). His recent efforts have focused on using POMs as nanoscale building blocks, where they are connected by organic ligands, resulting in inorganic-organic hybrid materials. Multiple spectroscopic techniques are used to characterize POMs and their resulting polymeric materials, including multi-nuclear NMR (1H, 13C, 31P, 29Si, etc), FT-IR, UV-Vis, and single crystal X-ray diffraction.

Ken Rohly

Professor of Chemistry | rohly@bethel.edu | Started at Bethel: 1987

Research interests

My research is focused on solution, surface, and materials chemistry applied to industrial applications. My major area of interest has been the modification of the surface chemistry of metallic and polymeric biomaterials used for devices implanted in the body. Recent research projects include the development and understanding of ion-exchange materials, physical and chemical adsorption phenomena, the application of biocides in medical device processes, microencapsulation and controlled release of active agents, and the dynamics of chemical fixation on tissue. I have had research contracts with Medtronic, Deluxe Corp., and 3M, among others.

Angela Stoeckman

Associate Professor of Chemistry | a-stoeckman@bethel.edu | Started at Bethel: 2015

Research interests

I am interested in the regulation of fatty acid metabolism. Fatty acids are not only important in the generation of ATP/energy, but they are important signaling molecules and inflammatory mediators. Fatty acids are stored as triacylglycerol (TAG) molecules in a dynamic cellular organelle called the lipid droplet. My research focuses on proteins that coat these lipid droplets in the hepatocyte and act to regulate the entry or exit of TAGs.

Brandon Winters

Assistant Professor of Chemistry | b-winters@bethel.edu | Started at Bethel: 2011

Research interests

Dr. Winters' research is currently focused on the chemistry of carbon. Carbon has more known allotropes than any other material with a new one having been discovered as recently as 2015. While many of these allotropes have existed naturally for thousands of years it was not until 2004 that one particularly fascinating one, graphene, was discovered and characterized. This form of carbon is the first 2D material ever discovered and is made up of a single atomic-thin layer of carbons bonded together in rings of six. This structure gives graphene some remarkable properties including very low electrical resistance and fast electron transport (near the speed of light), incredible flexibility, and great puncture resistance. While it has been very difficult and expensive to produce graphene films, there are other similar materials that have the potential to demonstrate reduced, but still impressive properties, including partially oxidized graphene: graphene oxide. While the oxygen included in the structure of graphene oxide does change its properties relative to pure graphene, it is much easier and cheaper to make. Dr Winters has focused his research on designing and fabricating a deposition chamber capable of growing graphene oxide thin-films under controlled conditions with the hopes of optimizing production of these materials and others for desired film characteristics. Ultimately the materials made in the Winters lab could be used for novel electronic devices and novel manufacturing methods, but the full extent of these applications remains to be seen. Current work is focussed on optimization of growth parameters and characterization of new films and their properties. In addition to independent work on carbon materials, Dr Winters has been involved as an independent consultant to several companies seeking help understanding the complex properties and behaviors of chemical sorbent materials including activated carbon. This work has focused on development of new manufacturing processes, investigation of specific adsorbate capture efficiencies, and studies of the fundamental properties of sorbent materials. This work has served as a means to get student researchers involved in current, cutting-edge, research activities, which are most often paid research internships. One final area of ongoing interest for Dr Winters is the design and use of chemical instrumentation. His passion for instrumentation comes out in the course Analytical Chemistry II: Instrumental Analysis along with his continued work to bring new and interesting instruments to Bethel University. Dr Winters can be seen outside of his natural habitat in the Chemistry department using instruments at the University of Minnesota's Characterization Facility on a semi-routine basis and enjoys sharing these experiences with students.

Become a Bethel Student