NIR-II响应型纳米混合物 结合热敏凝作为可喷涂包裹用于多药耐药细菌感染伤口管理
Weilun Pan1,2, Bodeng Wu1, Chengtao Nie1
1Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
ACS nano
|June 14, 2023
概括
一种新的纳米混合,ILGA@Gel,有效地消除了耐药性细菌,促进了伤口愈合. 这种先进的材料为复杂的伤口提供光热/抗生素治疗,减少炎症和预防感染.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术 纳米技术
- 传染性疾病 传染性疾病
背景情况:
- 有效的伤口包对于控制细菌感染和相关并发症,如炎症和再感染至关重要.
- 耐多药性细菌,例如*Pseudomonas aeruginosa* (MDR-PA),带来了重大的临床挑战.
- 目前的治疗方法往往无法同时解决伤口愈合的多个方面.
研究的目的:
- 开发一种新的纳米混合带,其结合抗菌和伤口愈合特性.
- 创建一个可喷,响应的水凝敷料,以有效地输送治疗剂.
- 评估开发的包裹对MDR-PA和促进伤口愈合的有效性.
主要方法:
- 一个纳米混合体 (ILGA) 的构建,包括带有黄金外和LPS向的受体.
- 将ILGA纳入热敏水凝 (PLGA-PEG-PLGA) 中,形成可喷涂敷料 (ILGA@Gel).
- 评估ILGA@Gel的特性,包括凝时间,光热/抗生素功效,抗炎作用和*in vivo*伤口愈合性能.
主要成果:
- 通过光热和抗生素作用,ILGA对MDR-PA表现出强烈的亲和力和治疗作用.
- ILGA@Gel表现出血液静止的快速凝,并有效消毒受感染的伤口.
- 带通过调节巨细胞来缓解炎症,并通过形成保护性屏障来防止再感染.
- 在复杂的受感染伤口中,ILGA@Gel显著增强了伤口愈合和细菌根除.
结论:
- 开发的ILGA@Gel包装是一种有前途的仿生水凝,用于处理复杂的受感染伤口.
- 它的多功能功能能力,包括抗菌,抗炎和促进伤口愈合,提供了重要的临床潜力.
- 这种纳米混合液凝系统为先进的伤口护理应用提供了多功能平台.
相关概念视频
Hand hygiene
Asepsis is the practice of preventing or breaking the chain of infection. The nurse employs aseptic techniques to prevent the spread of microorganisms and reduce the risk of diseases. Hand hygiene is the cornerstone of aseptic techniques and is classified into medical and surgical asepsis. Medical asepsis includes hand hygiene and the use of gloves. Surgical asepsis, or the sterile technique, refers to practices that render and keep objects and areas free of microorganisms.
Hand washing...
Hand washing...
Modified-Release Drug Delivery Systems: Stimuli-Activated
Stimuli-activated drug delivery systems are designed to release drugs in response to specific physical, chemical, or biological stimuli. These systems often utilize hydrogels—three-dimensional, hydrophilic polymer networks capable of swelling in aqueous environments and retaining significant fluid volumes. Upon exposure to particular stimuli, these hydrogels undergo structural transitions that allow the embedded drug to be released. Due to this adaptive behavior, such systems are also called...


