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Published in: Cellulose 2/2022

21-01-2022 | Original Research

Highly antibacterial hydrogels prepared from amino cellulose, dialdehyde xylan, and Ag nanoparticles by a green reduction method

Authors: Yajie Hu, Nan Li, Panpan Yue, Gegu Chen, Xiang Hao, Jing Bian, Feng Peng

Published in: Cellulose | Issue 2/2022

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Abstract

Hydrogels with antibacterial activity have attracted more and more attention in the wound dressing area. Here, we developed antibacterial hydrogels directly from cellulose, xylan, and silver nitrate via a three-step process, involving chemical modification, Schiff-base reaction, and green reduction reaction. Amino cellulose (AC) and dialdehyde xylan (DAX) were prepared by chemical modification. Then, they were cross-linked by Schiff-base bonds (C = N bonds) to prepare AC-DAX hydrogels. The crosslinking density and porosity of AC-DAX hydrogels were significantly influenced by the mass ratios of AC to DAX. The AC-DAX-Ag hydrogels were synthesized by the reduction reaction of the C = N bonds without adding additional reductants. The demonstrated AC-DAX hydrogels and AC-DAX-Ag hydrogels showed similar layered surface structure and swelling capacity. In addition, AC-DAX-Ag hydrogels exhibited excellent antibacterial activity against E. coli with an obvious inhibition zone diameter about 0.50 cm. The developed AC-DAX-Ag hydrogels with antibacterial activity represents an attractive alternative to the wound dressing materials toward biomedical area. This work provides new ideas for the fabrication of bio-based antibacterial material.

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Metadata
Title
Highly antibacterial hydrogels prepared from amino cellulose, dialdehyde xylan, and Ag nanoparticles by a green reduction method
Authors
Yajie Hu
Nan Li
Panpan Yue
Gegu Chen
Xiang Hao
Jing Bian
Feng Peng
Publication date
21-01-2022
Publisher
Springer Netherlands
Published in
Cellulose / Issue 2/2022
Print ISSN: 0969-0239
Electronic ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-021-04359-8