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相关实验视频

Updated: May 14, 2025

Microfluidic Synthesis of Microgel Building Blocks for Microporous Annealed Particle Scaffold

Microfluidic Synthesis of Microgel Building Blocks for Microporous Annealed Particle Scaffold

Published on: June 16, 2022

Pd@Au纳米框架水凝用于闭环伤口治疗.

Futing Wang¹, Suping Deng², Changxiao Song¹

¹Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Bio-Sensing and Chemometrics, College of Material Science and Engineering, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China.

|April 11, 2025

概括

这项研究引入了一种智能水凝,可以检测伤口感染标记物,并使用光线杀死细菌并释放药物. 这种双重作用的方法可以实时监测伤口并加速愈合.

关键词:

化学-光热的战略.在现场监测和监控.多功能Pd@Au纳米框架水凝接近红外线的近红外线具有类似过氧酶的活性.

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Last Updated: May 14, 2025

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Published on: May 2, 2025

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:

伤口感染的监测和治疗仍然是医疗保健中的关键挑战.
开发用于同时诊断和治疗的多功能材料是非常可取的.
目前的策略往往缺乏实时反和有针对性的治疗交付.

研究的目的:

设计一种多功能金 (Pd@Au) 纳米框架水凝,用于检测尿酸 (UA) 作为伤口感染生物标志物.
开发一种化疗-光热策略,以使用Pd@Au纳米框架水凝增强伤口愈合.
创建一个闭环系统,用于现场伤口监测和治疗干预.

主要方法:

多功能Pd@Au纳米框架水凝的合成.
在酸性条件下对过氧化酶类活性进行评估,以产生抗菌ROS.
在近红外线 (NIR) 激光照射下对光热转换的评估.
由NIR触发的mupirocin (M) 释放的药物输送研究.
在体外抗菌药物对大肠杆菌的有效性测试.
在子的体内伤口愈合实验中,使用UA感应和化疗-光热疗法.

主要成果:

Pd@Au纳米框架水凝表现出高的过氧化酶类活性,产生活性氧物种 (ROS) 以抗菌作用.
尼尔射线激光照射诱导了高效的光热转换,显著增加了温度.
在NIR照射后,mupirocin装载的水凝显示出受控释放 (> 90%).
试验室研究显示,NIR治疗在10分钟内杀死98%的大肠杆菌.
在体内子伤口模型中,使用UA感应和化疗-光热疗法贴片,在4天内显示加速愈合.

结论:

设计的Pd@Au纳米框架水凝作为伤口管理的多功能平台.
化学光热策略有效地将诊断 (UA传感) 与治疗 (抗菌ROS和药物释放) 结合起来.
这种闭环系统为实时伤口监测和加速,协同的伤口愈合提供了有希望的方法.