A rapid-crosslinking antimicrobial hydrogel with enhanced antibacterial capabilities for improving wound healing

Frontiers in Physiology

Physiology

Ruitao He¹  Yuling Yan¹  Genying Wei²  Daoyuan Chen²  Yan Wang²  Xiaofei Qin²  Wanxin Li²  Xi Zhang³ 

[1] Department of Clinical Medicine, The Fifth Clinical Institution, Zhuhai Campus of Zunyi Medical University, Zhuhai, Guangdong, China;School of Biological Engineering, Zunyi Medical University, Zhuhai, Guangdong, China;School of Biological Engineering, Zunyi Medical University, Zhuhai, Guangdong, China;Department of Clinical Medicine, The Fifth Clinical Institution, Zhuhai Campus of Zunyi Medical University, Zhuhai, Guangdong, China;

关键词: hydrogel;    rapid-crosslinking;    antimicrobial;    anti-inflammatory;    wound healing;   

DOI  :  10.3389/fphys.2023.1206211

 received in 2023-04-15, accepted in 2023-05-19,  发布年份 2023

来源: Frontiers

【 摘 要 】

One of the main reasons impeding wound healing is wound infection caused by bacterial colonization with a continuous stage of inflammation. Traditional wound treatments like gauze are being replaced by tissue adhesives with strong wet tissue adhesion and biocompatibility. Herein, a fast-crosslinking hydrogel is developed to achieve both strong antimicrobial properties and excellent biocompatibility. In this study, a simple and non-toxic composite hydrogel was prepared by the Schiff base reaction between the aldehyde group of 2,3,4-trihydroxybenzaldehyde (TBA) and the amino group of ε-Poly-L-lysine (EPL). Subsequently, a succession of experiments toward this new hydrogel including structure characterization, antimicrobial properties, cell experiment and wound healing were applied. The results of the experiments show that the EPL-TBA hydrogel not only exhibited excellent contact-active antimicrobial activities against Gram-negative bacteria Escherichia coli (E. coil) and Gram-positive Bacteria Staphylococcus aureus (S. aureus), but also inhibited the biofilm formation. More importantly, the EPL-TBA hydrogel promoted the wound healing with low cytotoxicity in vivo. These findings indicate that the EPL-TBA hydrogel has a promising use as a wound dressing in the bacterial infection prevention and wounds healing acceleration.

【 授权许可】

Unknown   
Copyright © 2023 Zhang, Li, Wei, Yan, He, Wang, Chen and Qin.