Encapsulation of semiconductor quantum dots into the central cores of block copolymer cylindrical and toroidal micelles

doi:10.1039/c3ra44403a

CORC > 化学研究所 > 中国科学院化学研究所

	Encapsulation of semiconductor quantum dots into the central cores of block copolymer cylindrical and toroidal micelles
	Nie, Xiaobo 1,2; Xu, Jiangping 1,2; Cui, Jie 1; Yang, Bai 3; Jiang, Wei 1
刊名	RSC ADVANCES
	2013
卷号	3 期号:46 页码:24625-24633
ISSN号	2046-2069
DOI	10.1039/c3ra44403a
英文摘要	The formation of well-defined nanoparticles-loaded cylindrical micelles is of considerable interest to the development of nanomaterials with desired optical, electric, magnetic, and mechanical properties. Herein, encapsulation of monodisperse polystyrene (PS)-grafted CdSe/CdS quantum dots (QDs) within the PS cores of PS-b-PEO cylindrical and toroidal micelles proceeded through dispersion of both the QDs and PS-b-PEO in a good solvent (DMF) then simultaneous desolvation of QDs and PS block of the copolymer by addition of water. We demonstrated the effects of water content and stirring time on the morphologies of hybrid assemblies and found that the cylindrical and toroidal micelles with QDs uniformly encapsulated into the central cores were preferentially formed at the block copolymer initial concentration of 2 wt%, water content of 6 wt% and stirring time of 5-7 days. Additionally, two different formation pathways of the hybrid cylindrical micelles were demonstrated. Moreover, the colloidal aqueous solution of hybrid assemblies exhibit highly emissive properties as compared to the unmodified QDs, which have potential application in biological targeting and fluorescence labeling.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000326745100099
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/47039]
专题	中国科学院化学研究所
通讯作者	Jiang, Wei
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Jilin Univ, Coll Chem, State Key Lab Supramol Struct & Mat, Changchun 130012, Peoples R China
推荐引用方式 GB/T 7714	Nie, Xiaobo,Xu, Jiangping,Cui, Jie,et al. Encapsulation of semiconductor quantum dots into the central cores of block copolymer cylindrical and toroidal micelles[J]. RSC ADVANCES,2013,3(46):24625-24633.
APA	Nie, Xiaobo,Xu, Jiangping,Cui, Jie,Yang, Bai,&Jiang, Wei.(2013).Encapsulation of semiconductor quantum dots into the central cores of block copolymer cylindrical and toroidal micelles.RSC ADVANCES,3(46),24625-24633.
MLA	Nie, Xiaobo,et al."Encapsulation of semiconductor quantum dots into the central cores of block copolymer cylindrical and toroidal micelles".RSC ADVANCES 3.46(2013):24625-24633.