Premium
Chitosan composite hydrogels cross‐linked by multifunctional diazo resin as antibacterial dressings for improved wound healing
Author(s) -
Gao Lilong,
Zhang Hui,
Yu Bing,
Li Wenlong,
Gao Fei,
Zhang Ke,
Zhang Hongbo,
Shen Youqing,
Cong Hailin
Publication year - 2020
Publication title -
journal of biomedical materials research part a
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.849
H-Index - 150
eISSN - 1552-4965
pISSN - 1549-3296
DOI - 10.1002/jbm.a.36952
Subject(s) - self healing hydrogels , chitosan , wound healing , materials science , antibacterial activity , photosensitizer , staphylococcus aureus , composite number , diazo , polymer chemistry , chemistry , medicine , composite material , bacteria , surgery , organic chemistry , biology , genetics
Skin lesions and injuries can increase the risk of pathogen infections. Developing efficacious wound dressings could effectively prevent bacterial infection and accelerate wound healing. Herein, we developed chitosan composite hydrogels cross‐linked by multifunctional diazo resin (DR) as antibacterial dressings for improved wound healing. The composite hydrogels were in situ formed by electrostatic interactions, chelation interactions, and covalent bonds between carboxylated chitosan and DR under ultraviolet assisted without small photosensitizer. The resultant hydrogels (noted as DR‐CCH) showed good stability at different DR concentrations in physiological buffers. The antibacterial assays showed the DR‐CCH could inhibit and kill Escherichia coli and Staphylococcus aureus . What is more, our hydrogels could accelerate wound healing in vivo. The present study demonstrates this composite DR‐CCH with trace zinc has potential for accelerated wound healing.