Open AccessConductive bacterial cellulose by in situ laccase polymerization of aniline
Author(s) -
Euijin Shim,
Jing Su,
Jennifer Noro,
Marta A. Teixeira,
Artur Cavaco-Paulo,
Carla Silva,
Hye Rim Kim
Publication year - 2019
Publication title -
plos one
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.99
H-Index - 332
ISSN - 1932-6203
DOI - 10.1371/journal.pone.0214546
Subject(s) - polyaniline , aniline , bacterial cellulose , laccase , polymerization , cellulose , in situ polymerization , conductive polymer , materials science , chemical engineering , membrane , polymer chemistry , polymer , chemistry , organic chemistry , composite material , biochemistry , engineering , enzyme
Conductive and colored bacterial cellulose (BC) was developed by entrapment of polyaniline (PANi) onto dry BC membranes. The polyaniline was produced by in situ green polymerization of aniline by Myceliophthora thermophila laccase at pH = 4, 25°C, in the presence of a mediator, 1-hydroxybenzotriazol (HBT), using two different reactors, a water bath (WB) and an ultrasonic bath (US). MALDI-TOF and 1 H NMR characterization of the experiment solutions confirmed the efficient polymerization of aniline by laccase. The dried BC membranes with entrapped polyaniline showed electrical conductive behavior and strong coloration, opening novel routes for the exploitation of functionalized bacterial cellulose as a green material for technical textiles, wearables, and other applications.