A biopolymer-gated ionotronic junctionless oxide transistor array for spatiotemporal pain-perception emulation in nociceptor network. Issue 6 (27th January 2022)

• Record Type: Journal Article
• Authors: Li, Yanran; Yin, Kai; Diao, Yu; Fang, Mei; Yang, Junliang; Zhang, Jian; Cao, Hongtao; Liu, Xiaoliang; Jiang, Jie
• Is Part Of: Nanoscale. Volume 14:Issue 6(2022)
• Page Start: 2316
• Page End: 2326
• Publication Date: 2022-01-27
• Subjects: Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.505
• DOI: 10.1039/d1nr07896h
• Languages: English
• ISSNs: 2040-3364

Abstract

Abstract : A 5 × 5 ionotronic junctionless indium-tin oxide (ITO) transistor array is reported for emulating a nociceptor network based on controlling the gate-to-channel distance. Abstract : Capable of reflecting the location and intensity of external harmful stimuli, a nociceptor network is of great importance for receiving pain-perception information. However, the hardware-based implementation of a nociceptor network through the use of a transistor array remains a great challenge in the area of brain-inspired neuromorphic applications. Herein, a simple ionotronic junctionless oxide transistor array with pain-perception abilities is successfully realized due to a coplanar-gate proton-coupling effect in sodium alginate biopolymer electrolyte. Several important pain-perception characteristics of nociceptors are emulated, such as a pain threshold, the memory of prior injury, and sensitization behavior due to pathway alterations. In particular, a good graded pain-perception network system has been successfully established through coplanar capacitance and resistance. More importantly, clear polarity reversal of Lorentz-type spatiotemporal pain-perception emulation can be finally realized in our projection-dependent nociceptor network. This work may provide new avenues for bionic medical machines and humanoid robots based on these intriguing pain-perception abilities.