Journal
ADVANCED BIOSYSTEMS
Volume 3, Issue 2, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adbi.201800248
Keywords
action potential; cardiomyocyte; microtissues; organic electrochemical transistors
Categories
Funding
- Theme-based Research Scheme [T13-706/11-2]
- Collaborative Research Funds from Research Grant Council (RGC) of the Hong Kong SAR Government, China [C1013-15G]
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Here, a multichannel organic electrochemical transistor (OECT) array is reported for electrophysiological monitoring and mapping of action potential propagation of a wide range of cardiac cells, including cell lines, primary cell lines, and human-sourced stem cell derivatives in 2D and 3D structures. The results suggest that the ability to exploit this OECT-based platform to map 2D action potential propagation provides a viable strategy to better characterize cardiac cells in response to various chronotropic drugs. The effects of chronotropic agents Isoproterenol and Verapamil on cardiac tissues validate the utility of OECT for drug screening capability, and a preliminary demonstration of a 64-channel OECT array to monitor the cardiac action potentials for better spatial resolution is presented. The study demonstrates that OECT will be a viable and versatile platform for applications in medical and pharmacological industries.
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