title: Simple Approach to Synthesize Amino-Functionalized Carbon Dots by Carbonization of Chitosan.
abstract: Carbon dots (CDs) as a new series of fluorescent nanomaterials have drawn great attention in recent years owning to their unique properties. In this paper, a simple carbonization approach to synthesize amino-functionalized CDs was developed by using chitosan as the carbon precursor. The as-prepared CDs possessed desirable amino function group on their surface and exhibited bright luminescence with absolute quantum yield (QY) of 4.34%, excitation-, pH-dependent and up-conversion fluorescence behaviors. Furthermore, we have investigated the cytotoxicity and biocompatibility of the as-prepared CDs, which demonstrated that the as-prepared CDs have the potential applications in biosensing, cellular imaging and drug delivery.
authors: Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, P. R. China.
authors: Xin
authors: X
authors: Liu
authors: Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, P. R. China.
authors: Jinhui
authors: J
authors: Pang
authors: Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, P. R. China.
authors: Feng
authors: F
authors: Xu
authors: Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, P. R. China.
authors: Xueming
authors: X
authors: Zhang
mesh_terms: D000596:Amino Acids; D001672:Biocompatible Materials; D015374:Biosensing Techniques / Q000379:methods; D002244:Carbon; D048271:Chitosan; D003584:Cytological Techniques / Q000379:methods; D016503:Drug Delivery Systems; D049329:Nanostructures / Q000737:chemistry*
chemical_list: D000596:Amino Acids; D001672:Biocompatible Materials; D002244:Carbon; D048271:Chitosan