Antibacterial Films Made of Bacterial Cellulose

Zhenbing Sun; Xiaoping Li; Zhengjie Tang; Xiaobao Li; Jeffrey J. Morrell; Johnny Beaugrand; Yao Yao; Qingzhuang Zheng

doi:10.3390/polym14163306

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Antibacterial Films Made of Bacterial Cellulose

Journal article

Open access

Peer reviewed

Antibacterial Films Made of Bacterial Cellulose

Zhenbing Sun, Xiaoping Li, Zhengjie Tang, Xiaobao Li, Jeffrey J. Morrell, Johnny Beaugrand, Yao Yao and Qingzhuang Zheng

Polymers, Vol.14, pp.1-13

2022

DOI: https://doi.org/10.3390/polym14163306

PMCID: PMC9415087

PMID: 36015562

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Abstract

carboxymethyl bacterial cellulose (CMBC)

mechanical properties

nano-Ag

nano-bacterial cellulose (NBC)

pyrolysis characteristics

Bacterial cellulose (BC) is naturally degradable, highly biocompatible, hydrophilic, and essentially non-toxic, making it potentially useful as a base for creating more sophisticated bio-based materials. BC is similar to plant-derived cellulose in terms of chemical composition and structure but has a number of important differences in microstructure that could provide some unique opportunities for use as a scaffold for other functions. In this study, bacterial cellulose was alkylated and then esterified to produce a carboxymethyl bacterial cellulose (CMBC) that was then used to produce six different composite films with potential antibacterial properties. The films were assessed for antibacterial activity against Staphylococcus aureus and Escherichia coli, pyrolysis characteristics using thermogravimetric analysis (TGA), microstructure using scanning electron microscopy (SEM), and mechanical properties. The addition of nano-silver (nano-Ag) markedly improved the antimicrobial activity of the films while also enhancing the physical and mechanical properties. The results indicate that the three-dimensional reticulated structure of the bacterial cellulose provides an excellent substrate for scaffolding other bioactive materials. Thus, the nano-BC was added into the CMBC/nano-Ag composites furthermore, and then the antibacterial and mechanical properties were improved 44% for E. coli, 59% for S. aureus, and 20% for tensile strength, respectively.

Details

Title: Antibacterial Films Made of Bacterial Cellulose
Authors: Zhenbing Sun (Author) - Southwest Forestry University
Xiaoping Li (Author) - Southwest Forestry University
Zhengjie Tang (Author) - Southwest Forestry University
Xiaobao Li (Author) - Southwest Forestry University
Jeffrey J. Morrell (Corresponding Author) - University of the Sunshine Coast, Queensland, National Centre for Timber Durability and Design Life
Johnny Beaugrand (Corresponding Author) - Biopolymères Interactions Assemblages
Yao Yao (Author) - Southwest Forestry University
Qingzhuang Zheng (Author) - Southwest Forestry University
Publication details: Polymers, Vol.14, pp.1-13
Publisher: MDPI AG
Date published: 2022
DOI: 10.3390/polym14163306
ISSN: 2073-4360
PMID: 36015562; PMC9415087
Copyright note: Copyright: © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Organisation Unit: University of the Sunshine Coast, Queensland; National Centre for Timber Durability and Design Life; Forest Research Institute
Language: English
Record Identifier: 99668498502621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Polymer Science