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纳米酶系统具有可调节的酶活性,用于受感染伤口的按需供应疗法

Danyang Wang¹, Jinyao Sun², Shujing Deng³

¹Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China; School of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi, China.

Journal of colloid and interface science

|October 22, 2025

概括

这项研究引入了新的纳米酶纳米颗粒 (ACC@LPDA_PtNP),可以有效地对抗细菌感染,并通过调节伤口微环境来促进伤口快速愈合. 这些纳米粒子为受感染的伤口提供了一个有前途的治疗策略.

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:

细菌感染的伤口存在严重的临床挑战,原因是病态的微环境.
反应性氧物种 (ROS),炎症和受损的组织修复阻碍了有效的伤口愈合.

研究的目的:

开发一种光热触发的,调节pH的纳米酶系统,用于治疗细菌感染,促进伤口愈合.
在受感染的伤口模型中研究ACC@LPDA_Pt纳米颗粒的多功能治疗能力.

主要方法:

构建无形碳酸和酸修饰的纳米粒子 (ACC@LPDA_PtNP).
评估光热效应,pH调节和纳米酶活性.
对抗黄金葡萄球菌和大肠杆菌的抗菌功效的评估.
在体内对受感染伤口愈合的研究,包括细胞增殖,迁移和组织再生.

主要成果:

ACC@LPDA_PtNP展示了显著的光热效应和pH调节能力.
实现了对S. aureus (99.8%) 和大肠杆菌 (99.9%) 的高抑制率.
光热诱导的pH中和增强了ROS清除和氧气生产.
观察到加快伤口关闭 (97.3%),减少炎症和增强组织再生.

结论:

ACC@LPDA_PtNP作为一种多功能纳米治疗策略,用于细菌感染的伤口.
纳米酶系统的pH调节和光热特性有效地解决了伤口愈合的关键挑战.
这种方法显示出促进复杂伤口感染治疗的巨大潜力.

关键词:

纳米酶是一种的纳米酶.细菌感染细菌感染催化酶的催化剂是什么过氧化酶的使用伤口愈合伤口愈合

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