Micro Electrical Impedance Spectroscopy of Bovine Chromaffin Cells

S. K. Mohanty, S. K. Ravula, K. Engisch, A. B. Frazier

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Single cell characterization using electrical impedance spectroscopy (EIS) has been conducted on bovine chromaffin cells. Measurements were taken using a micro scale electrophysiological analysis system fabricated using micromachining (e.g. MEMS) technologies. A population of chromaffin cells were injected into a microreservoir and subsequently manipulated into a microchannel with a cross-sectional area of 7.0×7.0 μm 2 . The microchannel was designed with integrated, opposing electroplated palladium electrodes with a cross-sectional area of 7.0×7.0 μm 2 . The electrodes are designed to be in contact with the cells during analysis procedures. Impedance measurements were taken over a frequency range of 40 Hz to 3.0 MHz. Magnitude and phase were studied for a statistically relevant population of chromaffin cells. The impedance spectrums revealed three distinct populations of chromaffin cells. The data obtained for the chromaffin cells was compared to data obtained for red blood cells, air, and phosphate buffered solution.

Original languageAmerican English
Title of host publication2nd Annual International IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine and Biology. Proceedings (Cat. No.02EX578)
EditorsDavid Beebe, Andre Dittmar
PublisherIEEE
Pages485-488
Number of pages4
ISBN (Print)0-7803-7480-0
DOIs
StatePublished - Aug 7 2002
Event2nd Annual International IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine and Biology - Madison, United States
Duration: May 2 2002May 4 2002

Conference

Conference2nd Annual International IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine and Biology
Country/TerritoryUnited States
CityMadison
Period5/2/025/4/02

ASJC Scopus Subject Areas

  • Biotechnology
  • Microbiology (medical)

Keywords

  • MEMS
  • cell sorting
  • chromafin cells
  • electrical impedance spectroscopy
  • microfluidic

Disciplines

  • Medical Cell Biology
  • Medical Neurobiology
  • Medical Physiology
  • Neurosciences
  • Physiological Processes

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