Multichamber Multipotentiostat System for Cellular Microphysiometry.

Lima EA, Snider RM, Reiserer RS, McKenzie JR, Kimmel DW, Eklund SE, Wikswo JP, Cliffel DE
Sens Actuators B Chem. 2014 204: 536-543

PMID: 25242863 · PMCID: PMC4167374 · DOI:10.1016/j.snb.2014.07.126

Multianalyte microphysiometry is a powerful technique for studying cellular metabolic flux in real time. Monitoring several analytes concurrently in a number of individual chambers, however, requires specific instrumentation that is not available commercially in a single, compact, benchtop form at an affordable cost. We developed a multipotentiostat system capable of performing simultaneous amperometric and potentiometric measurements in up to eight individual chambers. The modular design and custom LabVIEW™ control software provide flexibility and allow for expansion and modification to suit different experimental conditions. Superior accuracy is achieved when operating the instrument in a standalone configuration; however, measurements performed in conjunction with a previously developed multianalyte microphysiometer have shown low levels of crosstalk as well. Calibrations and experiments with primary and immortalized cell cultures demonstrate the performance of the instrument and its capabilities.

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