期刊
CARBOHYDRATE POLYMERS
卷 248, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2020.116777
关键词
Cellulose; In-situ synthesis; Ag-Au nanoparticle; Antibacterial; Surface enhanced Raman spectroscopy
资金
- National Natural Science Foundation of China [51803186, 51873195]
- Young Researchers Foundation of the Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University [2015QN03, 2016QN02]
- Fundamental Research Funds of Zhejiang Sci-Tech University [2019Q013]
- Provincial Natural Science Research Project of Anhui Province Higher Education Promotion Plan [TSKJ2017B02]
Introducing functional metal nanoparticles (NPs) into flexible substrate is being increasingly attempted to expand their application. Here, we extend the synthesis of cellulose to its unmodified dope achieving freestanding nanocomposite decorated with bimetallic Ag-Au NPs through the one pot reaction. In the procedure, cellulose chain not only acts as a reducing agent but also a biocompatible support for NPs with a mean size of 7.9-9.7 nm. Meanwhile, changing the addition order of Ag+ and AuCl4- generated different atom arrangement in the bimetallic NPs. Moreover, the correlation of bioactivity to NP atom arrangement was studied. The result revealed that the nanocomposite containing NPs with an ultrathin Ag-rich outermost shell around an Au-rich core showed better bactericidal ability while lower cytotoxicity. In addition, the nanocomposite exhibited a sensitive SERS property for determination of R6G with a high enhancement factor of 10(8).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据