title: Enriching PMMA nanospheres with adjustable charges as novel templates for multicolored dye@PMMA nanocomposites.
abstract: Multicolored fluorescent dye loaded PMMA nanospheres were synthesized by the electrostatic adsorption of dye molecules on the charged PMMA nanospheres, whose charges were adjusted by choosing different initiators. The charged PMMA nanospheres have a wider capacity and advantage for combining the charged dyes. The fluorescent dye@PMMA composite nanospheres possess the advantages of higher brightness, longer lifetime and stronger resistance to photobleaching relative to dye molecules. Dye leakage remained lower than 5% over one week. These fluorescent nanospheres have been used in biological labels in cell imaging. They can easily stain blood cancer cells without further surface modification.
authors: State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, People's Republic of China.
authors: Xumei
authors: X
authors: Wang
authors: Shuping
authors: S
authors: Xu
authors: Chongyang
authors: C
authors: Liang
authors: Hongrui
authors: H
authors: Li
authors: Fei
authors: F
authors: Sun
authors: Weiqing
authors: W
authors: Xu