Electrospinning of Antibacterial and Anti-inflammatory Ag@hesperidin Core-shell Nanoparticles into Nanofibers Used for Promoting Infected Wound Healing

Overview

Journal Regen Biomater

Specialty Biomedical Engineering

Date 2022 May 20

PMID 35592139

Authors

Xiuli Ren

Yanan Hu

Linna Chang

Shibo Xu

Xifan Mei

Zhenhua Chen

Affiliations

Soon will be listed here.

Abstract

Bacterial infection and excessive inflammation are still the main obstacles to wound repair. Thus, antibacterial and anti-inflammation nanomaterials are always attracting for infected wound healing. In this work, ultra-uniform (∼20 nm) and colloidally stable Ag nanoparticles (Ag-Hes NPs) with core-shell structure were prepared by using hesperidin as reducing and capping agent. The obtained Ag-Hes NPs present effective antibacterial properties on both and . Ag-Hes NPs also got high 1,1-diphenyl-1-picrylhydrazyl scavenging capability of 69%. Under the package of polyvinyl alcohol and sodium alginate, Ag-Hes NPs were encapsulated into electro spun nanofibers to form hydrogel (Ag-Hes@H). This strategy provides a moisture environment which could enrich and release Ag-Hes NPs gradually. Cell experiments and animal wound healing investigation proved that Ag-Hes@H could promote the proliferation and migration of human umbilical vein endothelial cells and accelerate infected wound healing. Meanwhile, Ag-Hes@H significantly reduced the expression of inflammatory cytokines, including IL-6, MMP9 and TNF-α. Immunohistochemistry data further suggested that Ag-Hes@H accelerated wound closure by promoting collagen deposition and skin cell proliferation. The designed antibacterial and anti-inflammatory Ag-Hes@H has great potential for promoting infected wound healing.

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