Preparation of COsub2/sub-Based Cationic Polycarbonate/Polyacrylonitrile Nanofibers with an Optimal Fibrous Microstructure for Antibacterial Applications

Autor: Zheng‐Ian Lin, Han‐Lin Tsai, Guan‐Lin Liu, Xie‐Hong Lu, Pei‐Wen Cheng, Pei‐Ling Chi, Chih‐Kuang Wang, Tzu‐Hsien Tsai, Chih‐Chia Wang, Jason Hsiao Chun Yang, Bao‐Tsan Ko, Chih‐Kuang Chen
Rok vydání: 2022
Předmět:
Zdroj: Macromolecular bioscience. 22(10)
ISSN: 1616-5195
Popis: Utilizing COsub2/subas one of the monomer resources, poly(vinylcyclohexene carbonates) (PVCHCs) are used as the precursor for preparing cationic PVCHCs (CPVCHCs) via thiol-ene click functionalization. Through the functionalization, CPVCHC-43 with a tertiary amine density of 43% relative to the backbone is able to display a significantly antibacterial ability against Staphylococcus aureus (S. aureus). Blending CPVCHC-43 with polyacrylonitrile (PAN), CPVCHC/PAN nanofiber meshes (NFMs) have been successfully prepared by electrospinning. More importantly, two crucial fibrous structural factors including CPVCHC/PAN weight ratio and fiber diameter have been systematically investigated for the effects on the antibacterial performance of the NFMs. Sequentially, a quaternization treatment has been employed on the NFMs with an optimal fibrous structure to enhance the antibacterial ability. The resulting quaternized NFMs have demonstrated the great biocidal effects against Gram-positive and Gram-negative bacteria. Moreover, the excellent biocompatibility of the quaternized NFMs have also been thoroughly evaluated and verified.
Databáze: OpenAIRE