自愈水凝胶
麦芽糊精
生物相容性
聚乙烯醇
材料科学
伤口愈合
单宁酸
丹宁
化学工程
高分子化学
复合材料
化学
食品科学
有机化学
外科
医学
工程类
冶金
喷雾干燥
作者
Liang Zuo,Xiaoji Wang,Xia Cao,Baiyan Chen,Mengmeng Shao,Guang Yang,Shushu Fu,Li Wang
标识
DOI:10.1016/j.jmbbm.2023.105942
摘要
The development of multifunctional and low-cost hydrogel dressings with good mechanical properties, antibacterial activity, and nontoxicity is of great relevance in healthcare. This study aimed to prepare a series of hydrogels consisting of maltodextrin (MD), polyvinyl alcohol (PVA), and tannic acid (TA) through a freeze-thaw cycling technique. Micro-acid hydrogels with different mass ratios (0, 0.25, 0.5, and 1 wt%) were obtained by adjusting the TA content. Among all hydrogels, TA-MP2 hydrogels (with a TA content of 0.5 wt%) showed good physicochemical and mechanical properties. In addition, the biocompatibility of TA-MP2 hydrogels was confirmed by the high cell survival rate of NIH3T3 cells, which was over 90% after 24 h and 48 h of incubation. Additionally, TA-MP2 hydrogels showed multifunctional properties, including antibacterial and antioxidative effects. In vivo experiments showed that TA-MP2 hydrogel dressings significantly accelerated wound healing in a full-layer skin wound model. These findings indicated the potential of TA-MP2 hydrogel dressings in promoting wound healing.
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