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Adv Healthc Mater. 2015 Jan 7;4(1):142-7. doi: 10.1002/adhm.201400356. Epub 2014 Sep 29.

Organic electrochemical transistors for clinical applications.

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Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 13541, Gardanne, France; INSERM, UMR_S 1106, F-13005 Marseille, France, Aix-Marseille Université, F-13005, Marseille, France; MicroVitae Technologies, Pôle d'Activité Y. Morandat, 1480 rue d'Arménie, 13120, Gardanne, France.


The ability of organic electrochemical transistors is explored to record human electrophysiological signals of clinical relevance. An organic electrochemical transistor (OECT) that shows a high (>1 mS) transconductance at zero applied gate voltage is used, necessitating only one power supply to bias the drain, while the gate circuit is driven by cutaneous electrical potentials. The OECT is successful in recording cardiac rhythm, eye movement, and brain activity of a human volunteer. These results pave the way for applications of OECTs as an amplifying transducer for human electrophysiology.


biomedical engineering; clinical applications; healthcare materials; organic bioelectronics; organic electrochemical transistor

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