Influence of remote plasma on PEDOT:PSS‐coated carbon felt for improved activity of glucose oxidase. Issue 14 (30th September 2019)

• Record Type: Journal Article
• Authors: Kahoush, May; Behary, Nemeshwaree; Cayla, Aurélie; Mutel, Brigitte; Guan, Jinping; Nierstrasz, Vincent
• Is Part Of: Journal of applied polymer science. Volume 137:Issue 14(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-09-30
• Subjects: carbon felt -- cold remote plasma -- glucose oxidase -- PEDOT:PSS; Polymers -- Periodicals; Polymerization -- Periodicals; 668.9
• DOI: 10.1002/app.48521
• Languages: English
• ISSNs: 0021-8995

Abstract

ABSTRACT: Increasing wettability of carbon felts is an important strategy to improve their efficiency in bio‐electrochemical applications. Herein, influence of cold remote plasma (N2 + O2 ) 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% O2, 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. Abstract :