title: Luminescent composite polymer fibers: in situ synthesis of silver nanoclusters in electrospun polymer fibers and application.
abstract: The purpose of this study is to prepare multifunctional polymer fibers. We report a simple and controllable method for in situ synthesis of Ag nanoclusters (NCs) in electrospun polymer fibers via a photochemical reaction. The prepared composite polymer fibers emit pink luminescence and the luminescence property can be optimized by pH and Ag(I) precursor concentration. The as-prepared Ag NCs in electrospun polymer fibers were mainly Ag2-5 with a quantum yield of 6.81% and a lifetime of 2.29 ns. The in situ growth of Ag NCs avoids excessive surface modifications which may cause the aggregation of Ag NCs in many ex situ assembly methods. The combination of Ag NCs with polymer fibers greatly improves the stability of Ag NCs and broadens their applications. The storage of Ag NCs becomes facilitative due to the formation of bulky mat. Furthermore, these luminescence composite polymer fibers show strong antibacterial activity against Staphylococcus aureus (S. aureus).
authors: State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, Jilin University, Changchun 130012, PR China. Electronic address: gaoshang5566@126.com.
authors: Wenran
authors: W
authors: Gao
authors: Chinese National Petroleum Corporation Bohai Drilling Engineering Company Limited, Tianjin 300457, PR China. Electronic address: wxmddp@163.com.
authors: Xumei
authors: X
authors: Wang
authors: State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, Jilin University, Changchun 130012, PR China. Electronic address: xuwq@jlu.edu.cn.
authors: Weiqing
authors: W
authors: Xu
authors: State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, Jilin University, Changchun 130012, PR China. Electronic address: xusp@jlu.edu.cn.
authors: Shuping
authors: S
authors: Xu
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry* / Q000494:pharmacology; D055664:Electrochemical Techniques; D049408:Luminescent Agents / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D019904:Polymethyl Methacrylate / Q000737:chemistry*; D012834:Silver / Q000737:chemistry* / Q000494:pharmacology; D013211:Staphylococcus aureus / Q000187:drug effects
chemical_list: D000900:Anti-Bacterial Agents; D049408:Luminescent Agents; D012834:Silver; D019904:Polymethyl Methacrylate
keywords: Antibacterial activity; Electrospinning; In situ growth; Metal nanocluster; Multifunctional fibers