Preparation and Antibacterial Properties of a Composite Fiber Membrane Material Loaded with Cationic Antibacterial Agent by Electrospinning

Lin Li; Chengfu Zhang; Lina Tian; Zihang Wu; Dongqing Wang; Tifeng Jiao

doi:10.3390/nano13030583

Preparation and Antibacterial Properties of a Composite Fiber Membrane Material Loaded with Cationic Antibacterial Agent by Electrospinning

Nanomaterials (Basel). 2023 Feb 1;13(3):583. doi: 10.3390/nano13030583.

Authors

Lin Li¹, Chengfu Zhang¹, Lina Tian¹, Zihang Wu¹, Dongqing Wang¹, Tifeng Jiao¹

Affiliation

¹ State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Applied Chemistry, Hebei Key Laboratory of Nano-Biotechnology, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, Yanshan University, Qinhuangdao 066004, China.

Abstract

Microbial infections due to bacteria, viruses, and molds are a serious threat to both human life and the health of other organisms. To develop inexpensive, easy-to-prepare, efficient, and portable nano-antibacterial materials, as well as to explore the antibacterial prospects of cationic antibacterial agents, in this work, six different membrane materials were prepared by the electrostatic spinning method and characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and Fourier transform infrared (FT-IR). The materials were tested for antimicrobial properties using a modified AATCC100-200 test method. Under the most suitable spinning conditions, the doping amount of the cationic antimicrobial agent, CTAB, had the greatest influence on the antimicrobial performance. The antimicrobial performance of PCL/PEO/CS/CTAB_0.4 was the highest among the prepared materials, with 83.7% effectiveness against S. aureus and 99.9% against E. coli. The antimicrobial performance was found to be stable. In our study, we determined the most suitable spinning ratio to prepare an inexpensive and efficient cationic antimicrobial agent. Biodegradable, high-antimicrobial-activity antimicrobial materials can be applied as films, and this new nanofiber material has shown great potential in wound dressings and as a mask material due to its remarkable antimicrobial efficiency.

Keywords: antibacterial; cationic antibacterial agent; composite nanofibers; electrospinning.

Grants and funding

This work was supported by the National Natural Science Foundation of China (Nos. 21872119, 22072127), the Natural Science Foundation of Hebei Province (No. B2021203016), and the Special Project for Local Science and Technology Development Guided by the Central Government of China (Nos. 216Z1301G, 226Z1401G).