PMID- 37591434 OWN - NLM STAT- Publisher LR - 20230826 IS - 1879-0003 (Electronic) IS - 0141-8130 (Linking) VI - 251 DP - 2023 Aug 15 TI - Silk fibroin/polyvinyl alcohol composite film loaded with antibacterial AgNP/polydopamine-modified montmorillonite; characterization and antibacterial properties. PG - 126368 LID - S0141-8130(23)03264-6 [pii] LID - 10.1016/j.ijbiomac.2023.126368 [doi] AB - In this study, a kind of nanocomposite film was fabricated via combining silk fibroin, polyvinyl alcohol (SF/PVA) and AgNP/polydopamine-modified Montmorillonite (AgNP/PDA-Mt). The structural characteristics and properties of the SF/PVA/AgNP/PDA-Mt nanocomposites films were identified using X-ray diffraction (XRD), Thermal gravimetric analyzer (TGA), Fourier transform infrared spectroscopy (FTIR), EDS-mapping analyses and Scanning electron microscope (SEM). The results indicated enhanced thermal performance of SF/PVA/AgNP/PDA-Mt nanocomposites with increased AgNP/PDA-Mt weight. The nanocomposite film exhibited excellent antibacterial activity against E. coli and S. aureus. The 2 % SF/PVA/AgNP/PDA-Mt film showed the highest zone of inhibition with an average inhibition circle diameter of 26.1 mm against E. coli and 20.61 mm against S. aureus. Cytotoxicity test results indicated that the nanocomposites films were biocompatible with L929 cells with a 100 % survival rate, which can be considered as one of the advantages of new nanocomposites films. These findings suggest that SF/PVA/AgNP/PDA-Mt films have potential clinical applications in wound dressing and antibacterial biomedical applications. CI - Copyright (c) 2023. Published by Elsevier B.V. FAU - Sun, Xuemei AU - Sun X AD - School of Food Science and Pharmaceutical Engineering, Nanjing normal university, Nanjing, PR china. FAU - Liang, Han AU - Liang H AD - School of Food Science and Pharmaceutical Engineering, Nanjing normal university, Nanjing, PR china. FAU - Wang, Huiyan AU - Wang H AD - School of Food Science and Pharmaceutical Engineering, Nanjing normal university, Nanjing, PR china. FAU - Meng, Na AU - Meng N AD - School of Food Science and Pharmaceutical Engineering, Nanjing normal university, Nanjing, PR china. Electronic address: mengnafeiyu@163.com. FAU - Jin, Suxing AU - Jin S AD - School of Food Science and Pharmaceutical Engineering, Nanjing normal university, Nanjing, PR china. Electronic address: jinsuxing@njnu.edu.cn. FAU - Zhou, Ninglin AU - Zhou N AD - Jiangsu Engineering Research Center for Biomedical Function Materials, Nanjing Normal University, Nanjing 210046, China; Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, China. Electronic address: zhouninglin@njnu.edu.cn. LA - eng PT - Journal Article DEP - 20230815 PL - Netherlands TA - Int J Biol Macromol JT - International journal of biological macromolecules JID - 7909578 SB - IM OTO - NOTNLM OT - Antibacterial OT - Silk fibroin OT - Silver nanoparticles COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2023/08/18 00:42 MHDA- 2023/08/18 00:42 CRDT- 2023/08/17 19:20 PHST- 2023/05/21 00:00 [received] PHST- 2023/08/12 00:00 [revised] PHST- 2023/08/14 00:00 [accepted] PHST- 2023/08/18 00:42 [pubmed] PHST- 2023/08/18 00:42 [medline] PHST- 2023/08/17 19:20 [entrez] AID - S0141-8130(23)03264-6 [pii] AID - 10.1016/j.ijbiomac.2023.126368 [doi] PST - aheadofprint SO - Int J Biol Macromol. 2023 Aug 15;251:126368. doi: 10.1016/j.ijbiomac.2023.126368.