相关实验视频

Updated: Jun 16, 2025

Generation of Alginate Microspheres for Biomedical Applications

Generation of Alginate Microspheres for Biomedical Applications

Published on: August 12, 2012

持续释放氧化的快速配方藻酸盐:一种双重作用的方法,用于抗微生物和血管新生效益

Yifan Zhang¹, Jiafeng Tan², Xiaoliang Tu²

¹Guangdong Provincial Key Laboratory of Spine and Spinal Cord Reconstruction, The Fifth Affiliated Hospital of Jinan University (Heyuan Shenhe People's Hospital), Jinan University, Heyuan 517000, China; Department of Materials Science and Engineering, Engineering Research Center of Artificial Organs and Materials, Jinan University, Guangzhou 510632, China.

Biomaterials advances

|May 25, 2025

概括

这项研究开发了一种新的水凝敷料,可以释放氧化 (NO),通过抑制细菌和促进愈合和血管生长,有效治疗感染的慢性伤口.

科学领域:

生物材料科学生物材料科学
伤口治愈研究研究伤口治愈研究
抗菌疗法是一种抗菌疗法.

背景情况:

感染的慢性伤口阻碍了愈合,通常需要手术.
氧化 (NO) 在高度时表现出强大的抗菌特性,在低度时促进血管化.
基于NO的伤口治疗现有的挑战包括高效的生成,剂量控制和载体选择.

研究的目的:

开发一种新的水凝敷料,有效治疗感染的慢性伤口.
为了利用S-nitrosoglutathione (GSNO) 作为一氧化的来源和酸 (SA-SH) 作为一个载体.
为了创建一种双重作用的敷料,以抑制细菌和增强血管生成.

主要方法:

合成S-尼特罗斯谷 (GSNO) 和硫化酸 (SA-SH).
使用离子形成GSNO/SA-SH水凝 (SSG) 复合物.
在老鼠感染模型中评估SSG水凝的NO释放概况,抗菌活性和血管生成潜力.

主要成果:

该SSG水凝表现出快速形成和适合不规则的伤口覆盖.
早期高剂量NO释放有效抑制了细菌生长,而后期低剂量释放促进了血管生成.
在体内实验显示,SSG组的治愈率为100%,而对照组的治愈率在14日为82%.
血管生成在SSG组显著增强,比SA-SH组大1.5倍.

结论:

开发的GSNO/SA-SH水凝敷料为感染慢性伤口管理提供了一个有希望的策略.
水凝中NO的双释放特征有效地对抗感染,并通过血管生成加速伤口愈合.
这种不释放NO的包裹为复杂的伤口护理提供了一种高效和可控的治疗方法.

关键词:

血管新生的产生.抗菌剂抗菌剂抗菌剂受感染的伤口受到感染.氧化氧化是什么?快速形成的包装剂.这就是S-nitrosoglutathione.

更多相关视频

Development and Characterization of Fusidic Acid-Loaded Alginate-Aloe vera Based Hydrogel FilmWound Healing

Development and Characterization of Fusidic Acid-Loaded Alginate-Aloe vera Based Hydrogel FilmWound Healing

Published on: December 13, 2024

Synthesis of Thermogelling PolyN-isopropylacrylamide-graft-chondroitin Sulfate Composites with Alginate Microparticles for Tissue Engineering

Synthesis of Thermogelling PolyN-isopropylacrylamide-graft-chondroitin Sulfate Composites with Alginate Microparticles for Tissue Engineering

Published on: October 26, 2016

相关概念视频

Nitric Oxide Signaling Pathway

Nitric Oxide Signaling Pathway

Nitric oxide (NO), an inorganic gas, acts as a potent second messenger in most animal and plant tissues. NO diffuses out of the cells that produce it and enters the neighboring cells to generate a downstream response. NO synthase (NOS) catalyzes NO production by the deamination of the amino acid arginine. There are three isoforms of NOS. Endothelial cells have endothelial NOS (eNOS), nerve and muscle cells have neuronal NOS (nNOS), and macrophages produce inducible NOS (iNOS) upon exposure...