Microstructure Reconstruction of Polyvinyl Alcohol and Silk Fibroin Membranes Mediated by Wool Keratin and Silk Fibroin Au Nanoclusters

摘要：

　　Wool keratin(WK)and silk fibroin(SF)were used as reducing and stabilizing agents respectively to synthesize Au nanoclusters named as WK&SF@AuNCs which exhibiting a strong red fluorescence.The composite membranes were ob-tained by mixing SF,PVA(polyvinyl alcohol)and WK&SF@AuNCs,with stable fluorescence and excellent mechanical properties.The formation of microscopic network structure is due to hydrogen bond crosslinking between PVA macromolecular and protein peptide chains,which stabilized the membranes'fluorescence properties by fixing WK&SF@AuNCs in this nano cage and improved their mechanical properties.With the stretching of the membranes,the crosslinking among the hydrogen bonds were opened,the microstructure was transformed from α-helices to β-pleated sheets.The strong red fluorescence mem-brane is important for potential uses in fluorescence labels in anti-counterfeit and visual detection.

关键词： Microstructure reconstruction Polyvinyl alcohol Anti-counterfeiting labels Fluorescent properties WK&SF@AuNCs

作者: ZHU Ying CHEN Xing DENG Qiong LIU Hongling

作者单位: College of Textiles,Key Laboratory of Textile Science&Technology,Ministry of Education,Donghua University,Shanghai 201620,China

会议类型: 国际会议

会议名称: 2021 Sino-Africa International Symposium on Textiles and Apparel (SAISTA2021)(2021中非纺织服装国际论坛)

会议地点: 线上

会议语种:英文

页码: 139-143

在线出版日期: 2021-11-05（万方平台首次上网日期，不代表论文的发表时间）