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Water‐Soluble Biocompatible Copolymer Hypromellose Grafted Chitosan Able to Load Exogenous Agents and Copper Nanoclusters with Aggregation‐Induced Emission
Author(s) -
Wang Zhenguang,
Shi Yue,
Yang Xuming,
Xiong Yuan,
Li Yanxiu,
Chen Bingkun,
Lai WingFu,
Rogach Andrey L.
Publication year - 2018
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201802848
Subject(s) - materials science , nanoclusters , biocompatibility , chitosan , copolymer , copper , polyvinyl alcohol , chemical engineering , polymer , photoluminescence , fabrication , composite number , nanotechnology , polymer chemistry , composite material , optoelectronics , pathology , engineering , metallurgy , medicine , alternative medicine
A water‐soluble, positively charged polymer is obtained by copolymerizing chitosan with hypromellose, and the evaluation of its biocompatibility and the capacity for the loading of exogenous agents is performed. Films based on hypromellose grafted chitosan (HGC) are employed as a matrix to fabricate composite films by dehydration‐triggered aggregation of copper nanoclusters (NCs). The resulting HGC/Cu NC films are transparent and exhibit an aggregation‐induced emission enhancement of copper NCs, with a resulting photoluminescence quantum yield of 42%. The application of these orange emitting films as color converters for fabrication of remote light‐emitting devices is demonstrated.