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Multiscale real time and high sensitivity ion detection with complementary organic electrochemical transistors amplifier.

Abstract：

:Ions are ubiquitous biological regulators playing a key role for vital processes in animals and plants. The combined detection of ion concentration and real-time monitoring of small variations with respect to the resting conditions is a multiscale functionality providing important information on health states. This multiscale functionality is still an open challenge for current ion sensing approaches. Here we show multiscale real-time and high-sensitivity ion detection with complementary organic electrochemical transistors amplifiers. The ion-sensing amplifier integrates in the same device both selective ion-to-electron transduction and local signal amplification demonstrating a sensitivity larger than 2300 mV V-1 dec-1, which overcomes the fundamental limit. It provides both ion detection over a range of five orders of magnitude and real-time monitoring of variations two orders of magnitude lower than the detected concentration, viz. multiscale ion detection. The approach is generally applicable to several transistor technologies and opens opportunities for multifunctional enhanced bioelectronics.

journal_name

Nat Commun

journal_title

Nature communications

authors

Romele P,Gkoupidenis P,Koutsouras DA,Lieberth K,Kovács-Vajna ZM,Blom PWM,Torricelli F

doi

10.1038/s41467-020-17547-0

subject

Has Abstract

pub_date

2020-07-27 00:00:00

pages

3743

issue

1

issn

2041-1723

pii

10.1038/s41467-020-17547-0

journal_volume

11

pub_type

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