Field‐Effect Transistors: Integration of Organic Electrochemical and Field‐Effect Transistors for Ultraflexible, High Temporal Resolution Electrophysiology Arrays (Adv. Mater. 44/2016)

Abstract

A study was conducted to demonstrate the possibility of spatial distribution measurement of myoelectric signals with a 2x2 electrophysiology array. The device was placed on a gracilis muscle covering both light-activated muscle area and non-activated muscle areas. The activation distribution of the muscle was confirmed by measuring the evoked myoelectric potentials using a conventional needle electrode. The result of spatial distribution of the measured myoelectric signals using a 2x2 electrophysiology array complied with results from the needle electrode The organic electrochemical transistors (OECT) was successfully operated by the organic field effect transistors (OFET). The developed integrated circuit with the OECT and the OFET, revealed a fast time response and flexibility in recording the biological signal relia bly even on a moving tissue surface. The OECT operated by the OFET the provided the circuit design for a multi-array OECT in an active matrix.