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Dr. Timothy Johann

Professor

Department:
Chemistry
Location:
461 Trexler Hall
Phone:
(540)375-2364
I teach biochemistry and general chemistry, and I greatly enjoy thinking about and explaining how our world works at the molecular level.  I'm also an avid home brewer, and I mentor the Roanoke College Brewing Club.  My other hobbies include rock climbing, cooking, and video games.  

Degrees

  • B.A. in Chemistry and B.A. in Biology from Hamline University
  • Ph.D. in Chemistry from Caltech

Research & Teaching Interests

  • Empirical investigations of the relationship between protein structure and function
  • Applications of computational chemistry and machine learning to protein-ligand interactions
  • Development of methods to validate pharmaceutical quality
  • Surveys of the quality of pharmaceuticals from middle to low income countires

Publications

  • * denotes undergraduate student author
  • Packaging and HPLC Analysis of Amoxicillin Capsules from Nablus, Palestine, Huda Hashash*, Timothy W. Johann, American Journal of Tropical Medicine and Hygiene, accepted, in press.
  • Securing the chain of custody and integrity of data in a global north-south partnership to monitor the quality of essential medicines, Kathleen Hayes, Natalie Meyers, Christopher Sweet, Ayenew Ashenef, Tim Johann, Marya Lieberman, and David Kochalko, Blockchain in Healthcare Today, 2022, DOI: 10.30953/bhty.v5.230.
  • Learning about fluorescence in undergraduate biochemistry: Enzyme kinetics using a low-cost, student-built fluorescence spectrometer, Richard B. Keithley, Dylan T. Sullivan*, Kavya V. Iyer*, Catherine A. Sarisky, Timothy W. Johann, Journal of Chemical Education, 2021, 98, 12, 4054-4060.
  • Investigations of amino acids in the 5-formyltetrahydrofolate binding site of 5,10-methenyltetrahydrofolate synthetase from Mycoplasma pneumonia, Casey Cooper*, Matthew Bryant*, Naomi Hogan*, Timothy W. Johann, The Protein Journal, 2019, DOI 10.1007/s10930-019-09861-4.
  • Investigating the determinants of substrate binding through a semester-long, project-oriented biochemistry laboratory course, Catherine A. Sarisky, Timothy W. Johann, Journal of Chemical Education; 2018; 95, 9, 1541-1547.
  • Improved formation of electrically-deposited enzyme-embedded chitosan coatings onto carbon fiber microelectrodes, Caitlin Donahue*, David Miller*, Tyler Beger*, Timothy W. Johann, Richard B. Keithley, Analytical Methods; 2018; 10, 1565-1576.