Electrospinning Silk-Fibroin-Based Fibrous Membranes with AgNPs for Antimicrobial Application

Author:

Li Qing1,Gong Hongyu2,Jia Xiang2,Wang Ran2,Liu Zhiwei2ORCID,Zhang Lexin2,Li Jisheng3,Jiao Tifeng2ORCID

Affiliation:

1. Hebei Key Laboratory of Safety Monitoring of Mining Equipment, School of Emergency Equipment, North China Institute of Science and Technology, Langfang 065201, China

2. State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China

3. Hebei Universities Characteristic Sericulture Application Technology Research and Development Center, Sericulture Research Institute, Chengde Medical University, Chengde 067000, China

Abstract

Silk fibroin (SF) has excellent biocompatibility and is one of the most commonly used polymer materials. However, SF fibers have serious drawbacks as antibacterial materials due to their lack of stability and bacterial resistance. Therefore, it is of paramount significance to enhance the stability and bolster the bacterial resistance of SF fibers. In this study, SF fibers were fabricated and loaded with Ag nanoparticles (AgNPs) to improve the antimicrobial properties of the fibers. The impact of reduction conditions on the size of AgNPs was also investigated. In an antibacterial test, the fibers that were prepared exhibited over 98% bacterial resistance against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli). Therefore, as an efficient antibacterial material, these fibers are expected to become a candidate material in medical and textile fields. This study offers a novel approach for the utilization of SF fibers in the realm of antibacterial applications.

Funder

National Natural Science Foundation of China

Natural Science Foundation of Hebei Province

Science and Technology Project of Hebei Education Department

Special Project for Local Science and Technology Development Guided by the Central Government of China

Fundamental Research Funds for the Central Universities

Publisher

MDPI AG

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