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Title: Simultaneous electrical recording of cardiac electrophysiology and contraction on chip

Journal Article · · Lab on a Chip
DOI:https://doi.org/10.1039/C7LC00210F· OSTI ID:1361595

Prevailing commercialized cardiac platforms for in vitro drug development utilize planar microelectrode arrays to map action potentials, or impedance sensing to record contraction in real time, but cannot record both functions on the same chip with high spatial resolution. We report a novel cardiac platform that can record cardiac tissue adhesion, electrophysiology, and contractility on the same chip. The platform integrates two independent yet interpenetrating sensor arrays: a microelectrode array for field potential readouts and an interdigitated electrode array for impedance readouts. Together, these arrays provide real-time, non-invasive data acquisition of both cardiac electrophysiology and contractility under physiological conditions and under drug stimuli. Furthermore, we cultured human induced pluripotent stem cell-derived cardiomyocytes as a model system, and used to validate the platform with an excitation–contraction decoupling chemical. Preliminary data using the platform to investigate the effect of the drug norepinephrine are combined with computational efforts. Finally, this platform provides a quantitative and predictive assay system that can potentially be used for comprehensive assessment of cardiac toxicity earlier in the drug discovery process.

Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1361595
Report Number(s):
LLNL-JRNL-714498; LCAHAM
Journal Information:
Lab on a Chip, Vol. 17, Issue 10; ISSN 1473-0197
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 77 works
Citation information provided by
Web of Science

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Cited By (8)

High Performance Flexible Organic Electrochemical Transistors for Monitoring Cardiac Action Potential journal August 2018
Engineering anisotropic cardiac monolayers on microelectrode arrays for non-invasive analyses of electrophysiological properties journal January 2020
Flat and microstructured polymeric membranes in organs-on-chips journal July 2018
Multi-organ system for the evaluation of efficacy and off-target toxicity of anticancer therapeutics journal June 2019
Reflective lens-free imaging on high-density silicon microelectrode arrays for monitoring and evaluation of in vitro cardiac contractility journal January 2018
Multi-organ on a chip for personalized precision medicine journal August 2018
Human-Derived Organ-on-a-Chip for Personalized Drug Development journal April 2019
Cardiac Progenitor Cells from Stem Cells: Learning from Genetics and Biomaterials journal November 2019

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