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Temporally programmed switching of functional states in polyaniline film

Authors :
K. P. Sonu
Shikha Dhiman
Abhishek Garg
D. Selvakumar
Subi J. George
Muthusamy Eswaramoorthy
Source :
APL Materials, Vol 11, Iss 3, Pp 031111-031111-7 (2023)
Publication Year :
2023
Publisher :
AIP Publishing LLC, 2023.

Abstract

Polyaniline films are under extensive consideration for applications in sensors, memory devices, displays, biomedicals, etc., owing to their unique optical and electronic functional states that are switchable in response to external stimuli. The application arena of these materials could be enhanced by creating active, adaptive, and autonomous systems with preprogramable spatiotemporal control over the functional states. Here, we present a simple approach to achieve autonomous temporal regulation of polyaniline films’ optical and electrical states by integrating enzyme-catalyzed biochemical reaction. The enzymatic reaction produces a feedback-induced transient pH profile, and correspondingly, the functional states of polyaniline films give rise to a similar switching profile, whose lifetime could be preprogrammed via enzyme concentration. This autonomous, temporally regulated polymer film system represents an advancement to the existing switchable materials that operate at equilibrium.

Details

Language :
English
ISSN :
2166532X
Volume :
11
Issue :
3
Database :
Directory of Open Access Journals
Journal :
APL Materials
Publication Type :
Academic Journal
Accession number :
edsdoj.318c045f1fc44f10bafd072633854906
Document Type :
article
Full Text :
https://doi.org/10.1063/5.0140078