Fabrication of Biopolymer Hydrogel Containing Ag Nanoparticles for Antibacterial Property

Hemicelluloses-based hydrogel coated with Ag nanoparticles was prepared by reduction of Ag ions in cross-linked dialdehyde hemicelluloses (DHC)/chitosan hydrogels, and the hydrogel network was fabricated from two kinds of macromolecules from biobased materials. This is an effective and environmental...

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Bibliographic Details
Published in:Industrial & engineering chemistry research 2015-08, Vol.54 (30), p.7393-7400
Main Authors: Guan, Ying, Chen, Jinghuan, Qi, Xianming, Chen, Gegu, Peng, Feng, Sun, Runcang
Format: Article
Language:English
Subjects:
Aldehydes
Antiinfectives and antibacterials
Chitosan
Escherichia coli
Hydrogels
Macromolecules
Nanoparticles
Networks
Silver
Staphylococcus aureus
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Summary:Hemicelluloses-based hydrogel coated with Ag nanoparticles was prepared by reduction of Ag ions in cross-linked dialdehyde hemicelluloses (DHC)/chitosan hydrogels, and the hydrogel network was fabricated from two kinds of macromolecules from biobased materials. This is an effective and environmental approach, which is developed to introduce an antimicrobial property into the hydrogel network without any reductants. The hydrogel was formed through the Schiff base reaction between the amino groups of chitosan chains and the aldehyde groups of DHC. The swelling property of the hydrogel decreased from 1129 to 54.8 g/g after the addition of silver ions. Importantly, the DHC/chitosan/Ag hydrogel possessed antimicrobial activity against the model microbes Escherichia coli (Gram-negative) and Staphylococcus aureus (Gram-positive), which is a promising antimicrobial material for applications in the biomedical field.
ISSN:0888-5885
1520-5045
DOI:10.1021/acs.iecr.5b01532