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☰ 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.

Alex Eaton

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

Research interests

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

Rollin King

Department Chair in 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 modelling of polymers in organic photovoltaic cells, the chiro-optical properties of molecules in solution, the generation of machine-readable output for processessing 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.

Trey Maddox

Associate Professor in 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 in 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 in 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 and Pre-Medical Advisor in Chemistry | 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 in Chemistry | rohly@bethel.edu | Started at Bethel: 1987

Research interests

Rohly's research has focused on materials chemistry issues as they relate to industry. One of his interests has been the modification of the surface chemistry of metallic biomaterials used for devices implanted in the body. He's also researched the catalytic breakdown of poly(ether urethanes) and the composition and thermal stability of silicone oils. He's contracted with Medtronic, Deluxe Corp., and 3M.

Angela Stoeckman

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

Brandon Winters

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

Research interests

Winters' research focuses on understanding the internal chemistry of soot particles and developing better understandings of their various interactions in the atmosphere. Aerosol particles are solid or liquid particles suspended in the gas phase. They can be naturally occurring or man-made and they are involved in myriad chemical reactions in the environment, not the least of which is the interaction of soot particles with water vapor in the atmosphere. Being very complex in chemical structure, soot particles and their atmospheric interactions are not well understood. They contribute in complex ways to things like atmospheric temperature, global and regional precipitation trends, and acid rain. Winters' primary methods of investigation include FTIR and Raman spectroscopy, electron microscopy, and tandem differential mobility analysis (t-DMA).

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