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Influence of remote plasma on PEDOT:PSS‐coated carbon felt for improved activity of glucose oxidase
Author(s) -
Kahoush May,
Behary Nemeshwaree,
Cayla Aurélie,
Mutel Brigitte,
Guan Jinping,
Nierstrasz Vincent
Publication year - 2020
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.48521
Subject(s) - pedot:pss , polystyrene sulfonate , glucose oxidase , wetting , materials science , coating , polystyrene , electrochemistry , amide , carbon fibers , chemical engineering , polymer chemistry , nuclear chemistry , chemistry , organic chemistry , nanotechnology , composite number , biosensor , polymer , layer (electronics) , composite material , electrode , engineering
Increasing wettability of carbon felts is an important strategy to improve their efficiency in bio‐electrochemical applications. Herein, influence of cold remote plasma (N 2 + O 2 ) treatment on surface properties of carbon felts with poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) coating was tested, aiming to improve immobilizing of glucose oxidase enzyme (GOx). Spectra of N 1s and O 1s confirmed the integration of carbonyl and ether as well as amide and amine groups on bare carbon fiber surface, while on coated fibers, carbonyl groups were pre‐dominant. S 2p spectra confirmed oxidation of PEDOT:PSS coating with reduction of (S − ) compared to (SO 3− ) group. GOx immobilized on different samples showed highest activity for PEDOT:PSS coating subjected to plasma with 2% O 2 , maintaining up to 60% after immobilization, and 37% of its activity after six cycles for some samples. Enzymes immobilized on samples without plasma treatment lost their activity after four cycles. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020 , 137 , 48521.