The VICC.ORG Investigator Directory
John P. Wikswo, Jr., Ph.D.
Professor of Molecular Physiology and Biophysics
Professor of Biomedical Engineering and Physics
Gordon A Cain University Professor
Director, VIIBRE
VICC Member
Researcher
Contact Information:
Vanderbilt University Dept. of Physics
6301 Stevenson Ctr
Nashville, TN 37232
615-343-4124
Fax: 615-322-4977
Research Specialty:
Development and application of microdevices for instrumenting and controlling single living cells
Research Description:
John Wikswo and his group are at present working in three areas: the study of the linear and non-linear electrical properties of cardiac tissue during stimulation, propagation, and recovery for threshold- and defibrillation-strength shocks; the magnetic measurement of cellular action currents in cardiac and intestinal tissue, as can be observed using SQUID magnetometry; and the development and application of micro- and nano-scale devices for instrumenting and controlling the single biological cell and small populations of cells. His long-term program to understand the effects of defibrillation-strength shocks on cardiac tissue now includes studies of charge and electroporation and molecular diffusion. The magnetic studies of action currents range from determining the information content of the magnetocardiogram in isolated rabbit hearts to the non-invasive diagnosis of intestinal ischemia in humans. The project to instrument and control single cells is addressing issues as varied as the use of cells to identify and discriminate chemical and biological warfare agents by metabolic phenotype; the development and application of BioMEMS (BioMicroElectroMechanical Systems) devices to understand the molecular signaling associated with chemotaxis, cellular motility, angiogenesis, and metastasis; and the nature of the signaling and metabolic activity associated with the immune response.
Publications:
- S. Chowdhury, P. Svec, C. Wang, K. Seale, J.P. Wikswo, W. Losert, and S.K. Gupta " Automated Cell Transport in Optical Tweezers-Assisted Microfluidic Chambers ." IEEE Transactions on Automated Science and Engineering, in press..
- J. Deng, A. Dhummakupt, P. Samson, J. Wikswo, and L. Shor " Dynamic Dosing Assay Relating Real-Time Respiration Responses of Staphylococcus aureus Biofilms to Changing Micro-Chemical Conditions ." Analytical Chemistry, in press..
- B. He, R. Baird, R. Butera, A. Datta, S. George, B. Hecht, A. Hero, G. Lazzi, R.C. Lee, J. Liang, M. Neuman, G. Peng, E. Perreault, M. Ramasubramanian, M. Wang, J. Wikswo, G.-Z. Yang, and Y.-T. Zhang " Grand Challenges in Interfacing Engineering with Life Sciences and Medicine ." IEEE Transactions on Biomedical Engineering, Special Issue on Grand Challenges in Engineering Life Sciences and Medicine, 60(3), 589-598, 2013. DOI:10.1109/TBME.2913,224886.
- J.P. Wikswo, F.E. Block III, D.E. Cliffel, C.R. Goodwin, C.C. Marasco, D.A. Markov, D.L. McLean, J.A. McLean, J.R. McKenzie, R.S. Reiserer, P.C. Samson, D.K. Schaffer, K.T. Seale, and S.D. Sherrod " Engineering Challenges for Instrumenting and Controlling Integrated Organ-on-Chip Systems ." IEEE Transactions on Biomedical Engineering, Special Issue on Grand Challenges in Engineering Life Sciences and Medicine, 60(3), 682-690, 2013. DOI:10.1109/TBME.2013.2244891.
- K. Hines, S. Ashfaq, J. Davidson, S. Opalenik, J. Wikswo, and J. McLean " Biomolecular Signatures of Diabetic Wound Healing by Structural Mass Spectrometry ." Analytical Chemistry, 85(7), 3651-3659, 2013. DOI:10.1021/ac303594m.
- R.A. Gray, D.N. Mashburn, V.Y. Sidorov, and J.P. Wikswo " Quantification of Transmembrane Currents During Action Potential Propagation in the Heart ." Biophysical Journal, 104(1), 268-278, 2013. DOI:10.1016/j-bpj.2012.11.007.
- K.J. Drake, V.Y. Sidorov, O.P. McGuinness, D.H. Wasserman, and J.P. Wikswo " Amino Acids as Metabolic Substrates During Cardiac Ischemia ." Experimental Biology and Medicine, 2371369-1378, 2012. DOI:10.1258/ebm.2012.012025.
- W.J. Ashby, J.P. Wikswo, and A. Zijlstra " Magnetically Attachable Stencils and the Non-Destructive Analysis of the Contribution Made by the Underlying Matrix to Cell Migration ." Biomaterials, 33(33), 8189-8203, 2012. DOI:10.1016/j.biomaterials.2012.07.018.
- W. Georgescu, J.P. Wikswo, and V. Quaranta " CellAnimation: An Open Source MATLAB Framework for Microscopy Assays ." Bioinformatics, 28(1), 138-139, 2012. DOI: 10.1093/bioinformatics/btr633.
- D.A. Markov, J.Q. Lu, P.C. Samson, J.P. Wikswo, and L.J. McCawley " Thick-Tissue Bioreactor as a Platform for Long-Term Organotypic Culture and Drug Delivery ." Lab Chip, 124560-4568, 2012. DOI: 10.1039/c2lc40304h.
- J.R. Enders, C.C. Marasco, J.P. Wikswo, and J.A. McLean " A Dual-Column Solid Phase Extraction Strategy for Online Collection and Preparation of Continuously Flowing Effluent Streams for Mass Spectrometry ." Analytical Chemistry, 84(20), 8467-8474, 2012. DOI: 10.1021/ac3021032.
- R. Yang, S.C. Lenaghan, J.P. Wikswo, and M. Zhang " External Control of the GAL Network in S. cerevisiae: A View from Control Theory ." PLoS ONE, 6(4), e19353, 2011. DOI: 10.1371/journal.pone.0019353.
- V.Y. Sidorov, I. Uzelac, and J.P. Wikswo " Regional Increase of Extracellular Potassium Leads to Electrical Instability and Reentry Occurence Through the Spatial Heterogeneity of APD Restitution ." Am. J. Physiol.-Heart Circ. Physiol., 301H209-H220, 2011. DOI: 10.1152/ajpheart.01141.2010.
- P.R. LeDuc, W.C. Messner, and J.P. Wikswo " How Do Control-Based Approaches Enter into Biology? ." Annu. Rev. Biomed. Eng., 13369-396, 2011. DOI: 10.1146/annurev-bioeng-071910-124651.
- M.D. Schmidt, R.R. Vallabhajosyula, J.W. Jenkins, J.E. Hood, A.S. Soni, J.P. Wikswo, and H. Lipson " Automated Refinement and Inference of Analytical Models for Metabolic Networks ." Physical Biology, 8(5), 055011, 2011. DOI: 10.1088/1478-3975/8/5/055011.
- A.D. Dukes, P.C. Samson, J.D. Keene, L.M. Davis, J.P. Wikswo, and S.J. Rosenthal