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大鼠体内银纳米颗粒的伤口愈合潜力

Wound healing potential of silver nanoparticles from on rats.

作者信息

Cheng Liang, Zhang Song, Zhang Qian, Gao Wenjie, Mu Shengzhi, Wang Benfeng

机构信息

Department of Burns and Plastic Surgery, Shaanxi Provincial People's Hospital, Xi'an, 710068, China.

出版信息

Heliyon. 2024 Aug 10;10(17):e36118. doi: 10.1016/j.heliyon.2024.e36118. eCollection 2024 Sep 15.

Abstract

In this study, we green synthesized silver nanoparticles (Ag Nps) from leaves (HE-Ag NPs) and evaluated their antimicrobial and wound-healing properties. The synthesized HE-Ag NPs were characterized using various techniques, revealing face-centered polygonal structures, a well-dispersed appearance, and an average particle size of 42-51 nm. The antimicrobial effects of HE-Ag NPs and their embedded cotton fabrics were tested against several pathogens, showing effective inhibition of growth. The cytotoxicity and anti-inflammatory properties of HE-Ag NPs were assessed using MTT assays on L929 and RAW 264.7 cells and by measuring inflammatory cytokine levels in LPS-treated RAW 264.7 cells. HE-Ag NPs did not affect the viability of L929 and RAW 264.7 cells and significantly reduced inflammatory cytokine levels. studies using an excision wound model demonstrated that HE-Ag NPs-loaded ointment significantly increased hydroxyproline, total protein, and antioxidant levels and enhanced the wound contraction rate. These findings suggest that HE-Ag NPs have potent antimicrobial properties and promote wound healing, indicating their potential for use in topical ointments for wound care.

摘要

在本研究中,我们从树叶中绿色合成了银纳米颗粒(HE-Ag NPs),并评估了它们的抗菌和伤口愈合特性。使用各种技术对合成的HE-Ag NPs进行了表征,结果显示其为面心多边形结构,外观分散良好,平均粒径为42-51纳米。测试了HE-Ag NPs及其嵌入的棉织物对几种病原体的抗菌效果,结果显示对生长有有效抑制作用。使用MTT法对L929和RAW 264.7细胞进行检测,并通过测量脂多糖处理的RAW 264.7细胞中的炎性细胞因子水平,评估了HE-Ag NPs的细胞毒性和抗炎特性。HE-Ag NPs不影响L929和RAW 264.7细胞的活力,并显著降低炎性细胞因子水平。使用切除伤口模型的研究表明,负载HE-Ag NPs的软膏显著提高了羟脯氨酸、总蛋白和抗氧化剂水平,并提高了伤口收缩率。这些发现表明,HE-Ag NPs具有强大的抗菌特性并促进伤口愈合,表明它们在用于伤口护理的外用软膏中的应用潜力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ecde/11403429/bf798e90b40a/ga1.jpg

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