Ken Ritchie

NOTE: E-mail addresses end with @purdue.edu

Associate Department Head

Professor of Physics and Astronomy

Group:

Faculty

Office:

PHYS 58
PHYS 90 (Lab)

Phone:

(765) 496-8315
(765) 494-2500

E-mail:

kpritchie

Website:

[Homepage]

Laboratory homepage

B.Sc., M.Sc. Physics, University of Waterloo
Ph.D., Physics, University of British Columbia

• Dynamics of the formation of signaling complexes in the plasma membrane of cells.
• Stochasticity in signaling responses
• Diffusion in lipid bilayer membranes with embedded mobile and immobile obstacles.
• Development of ultra-fast imaging techniques for observing individual molecules in living cells.
• Single molecule biophysics.

• 2015-Present Associate Head, Department of Physics and Astronomy, Purdue University
• 2012-Present Professor, Department of Physics and Astronomy, Purdue University
• 2005-2012 Associate Professor, Department of Physics and Astronomy, Purdue University
• 2000-2005 Assistant professor, Department of Biological Science, Nagoya University, Nagoya, Japan
• 1998-2003 Group leader and researcher, Kusumi Membrane Organizer Project, ERATO, Japan Science and Technology Co., Nagoya, Japan

PhD Students Supervised

• Shunyuan Zhang, “Mobility of prostate-specific membrane antigen (PSMA) on LNCaP cells”, 2014
• Chetan Sood, “Measuring and Modeling The Response Characteristics Of The Environmental Phosphate Transducer In Escherichia Coli”, 2013
• Hochan Lee, “A FRET study of PhoR-PhoB two component system in E.coli”, 2013.
• Alyssa Garrelts, “Dynamics of lipid analogs in the E. coli outer membrane”, 2011
• Jacob Hale, “Physical interactions of membrane receptors of two human cancer cell lines”, 2011
• Dongmyung Oh, “Single molecule studies of receptor proteins of Escherichia coli”, 2010.
• Jeffrey Spector, “Diffusion properties of band 3 in human erythrocytes”, 2009
• Gina-Mirela Mustata, “Imaging the fine-scale structure of the cellular actin cytoskeleton by Single Particle Tracking and Atomic Force Microscopy”, 2008

Selected Publications

1. Dynamics of the serine chemoreceptor in the Escherichia coli inner membrane: a high-speed single-molecule tracking study
   D Oh, Y Yu, H Lee, BL Wanner, K Ritchie
   Biophysical journal 106 (1), 145-153, 2014.
2. Energy-dependent motion of TonB in the Gram-negative bacterial inner membrane
   LD Jordan, Y Zhou, CR Smallwood, Y Lill, K Ritchie, WT Yip, SM Newton, PE Klebba
   Proceedings of the National Academy of Sciences 110 (28), 11553-11558, 2013.
3. Single-molecule imaging in live bacteria cells
   K Ritchie, Y Lill, C Sood, H Lee, S Zhang
   Phil Trans Royal Soc B 368, 20120355, 2013.
4. Single-molecule study of molecular mobility in the cytoplasm of Escherichia coli
   Y Lill, WA Kaserer, SM Newton, M Lill, PE Klebba, K Ritchie
   Physical Review E 86 (2), 021907, 2012.

Google Scholar Publication List