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An Electrochemical Gelation Method for Patterning Conductive PEDOT:PSS Hydrogels
Author(s) -
Feig Vivian Rachel,
Tran Helen,
Lee Minah,
Liu Kathy,
Huang Zhuojun,
Beker Levent,
Mackanic David G.,
Bao Zhenan
Publication year - 2019
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201902869
Subject(s) - pedot:pss , self healing hydrogels , materials science , bioelectronics , conductive polymer , nanotechnology , electrical conductor , porosity , electrochemistry , supercapacitor , polymer , layer (electronics) , composite material , biosensor , polymer chemistry , electrode , chemistry
Abstract Due to their high water content and macroscopic connectivity, hydrogels made from the conducting polymer PEDOT:PSS are a promising platform from which to fabricate a wide range of porous conductive materials that are increasingly of interest in applications as varied as bioelectronics, regenerative medicine, and energy storage. Despite the promising properties of PEDOT:PSS‐based porous materials, the ability to pattern PEDOT:PSS hydrogels is still required to enable their integration with multifunctional and multichannel electronic devices. In this work, a novel electrochemical gelation (“electrogelation”) method is presented for rapidly patterning PEDOT:PSS hydrogels on any conductive template, including curved and 3D surfaces. High spatial resolution is achieved through use of a sacrificial metal layer to generate the hydrogel pattern, thereby enabling high‐performance conducting hydrogels and aerogels with desirable material properties to be introduced into increasingly complex device architectures.