以贝类为灵感的光热抗菌多网水凝,用于级增强感染伤口愈合
Meiqi Cheng1, Yinuo Fan2, Chunxiao Wang2
1Marine College, Shandong University, Weihai 264209, China; Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
Journal of colloid and interface science
|August 28, 2025
概括
一种以为灵感的新型水凝 (BA-PDZn-N) 通过结合光热抗菌特性,自我修复和增强组织再生来提供先进的伤口愈合. 这种创新材料可以抵抗细菌感染,
科学领域:
- 生物材料科学
- 复原医学
- 纳米技术
背景情况:
- 由于传统治疗方法的局限性,治疗受感染的皮肤损伤具有挑战性.
- 现有的治疗方法往往无法同时提供抗菌和再生效果.
研究的目的:
- 开发一种多功能水凝, 加快感染伤口的愈合.
- 创建一个以为灵感的光热,抗菌和自我修复的水凝系统.
主要方法:
- 通过使用烯胺,多多巴胺 (PDA),Zn2+和β-尼古丁胺核酸 (NMN) 合成多网络水凝 (BA-PDZn-N).
- 包括PDA用于粘附和光热特性,Zn2+和NMN用于抗菌和抗氧化作用.
- 采用动态酸盐结合和金属连接物化,以保持结构完整性和自我修复.
主要成果:
- 在NIR照射下,水凝具有很高的附着性 (> 1400%),快速自我修复 (< 30秒),以及对大肠杆菌,金黄色杆菌和MRSA的强烈抗菌活性 (高达99. 88%).
- 这种材料具有优异的抗氧化,静血和细胞兼容性.
- 在体内研究显示,在受感染的老鼠伤口中减少了炎症并促进了表皮结构,毛囊和血管网络的再生.
结论:
- BA-PDZn-N水凝作为复杂伤口管理的多功能平台.
- 它的协同治疗作用促进细菌根除,氧化应激减轻和组织重建.
- 这种水凝在治疗受感染的皮肤损伤方面具有很大的临床应用潜力.
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