G-Quadruplex/Hemin DNA酶功能化银纳米集群具有协同抗菌和伤口愈合能力,用于感染伤口管理
Jiaojiao Zhu1, Tiao Wen1, Shuangquan Qu2,3
1Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, 410013, China.
Small (Weinheim an der Bergstrasse, Germany)
|October 12, 2023
概括
一种新的银纳米集团水凝敷料有效地对抗细菌感染,并通过释放银离子和产生活性氧物种来促进伤口愈合. 这种先进的敷料还可以减少炎症和氧化应激,提高生物安全性.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术纳米技术
- 伤口治愈研究研究 伤口治愈研究
背景情况:
- 管理受感染的伤口是一个挑战,需要同时进行抗菌作用和促进组织修复.
- 现有的治疗方法往往难以平衡抗感染功效与伤口愈合能力.
研究的目的:
- 开发一种基于多功能银纳米集群 (AgNCs) 的水凝敷料,用于感染伤口的治疗.
- 调查新型AgNCs水凝的联合抗感染和伤口愈合特性.
主要方法:
- 为AgNCs模板和G-四重复/血红蛋白DNA酶 (G4/hemin) 形成设计了一种具有丰富的细胞因子和瓜宁丰富的片段的双块DNA功能.
- 研究了AgNCs和G4/hemin对杀死细菌,产生活性氧物种 (ROS) 和巨细胞两极分化的协同作用.
- 评估了血红素的释放及其在升调血红素氧酶-1中的作用,以减轻银的细胞毒性.
主要成果:
- G4/hemin成分加速了银离子的释放,并产生了ROS,增强了抗菌活性.
- AgNCs表现出抗炎和抗氧化作用,促进M1到M2巨细胞两极分化,用于伤口愈合.
- 血红素释放上调的血红素氧酶-1,减少银诱导的细胞毒性,改善生物安全性.
结论:
- 开发的基于AgNCs的水凝包装为受感染的伤口治疗提供了一种双重方法,既针对感染,也针对愈合.
- 多功能设计确保了强大的治疗疗效与卓越的生物安全性,克服当前的治疗困境.
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