Preparation of silica-coated CdSe QDs for cell imaging applications

被引：0

作者：

Xie Chunjuan ^{[1
]}

Li Jian ^{[2
]}

Yin Dongguang ^{[1
]}

Zhang Li ^{[1
]}

Liu Binhu ^{[1
]}

Wu Minghong ^{[1
]}

机构：

[1] Shanghai Univ, Coll Environm & Chem Engn, Shanghai 200444, Peoples R China

[2] Nanchang Hangkong Univ, Coll Environm & Chem Engn, Nanchang 330063, Peoples R China

来源：

NUCLEAR SCIENCE AND TECHNIQUES | 2010年 / 21卷 / 02期

基金：

中国国家自然科学基金;

关键词：

E-beams; Fluorescent quantum dots; Micro-spheres; Reverse microemulsion; Cell labels; QUANTUM DOTS; ULTRASENSITIVE DNA; AQUEOUS-SOLUTION; NANOPARTICLES; REDUCTION; CLUSTERS;

D O I：

暂无

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

CdSe quantum dots (QDs) were prepared at room temperature by E-beam irradiation of the solution, using ethylene diamine tetraacetic acid as stabilizer. Silica-coated CdSe QDs were made in water-in-oil microemulsion, while amino groups were introduced synchronously onto the nanoparticles by copolymerization of 3-aminopropyl-trimethoxysilane and tetraethyl orthosilicate. The results of TEM imaging, fluorescent spectroscopy and photostability tests show that the QDs are of uniform spherical size (200 +/- 8 nm), monodispersity, and high fluorescence and photostability.

引用

页码：80 / 83

页数：4

共 23 条

[1]

BELLONI J, 1982, NOUV J CHIM, V6, P507

[2] Semiconductor nanocrystals as fluorescent biological labels [J].

Bruchez, M ;

Moronne, M ;

Gin, P ;

Weiss, S ;

Alivisatos, AP .

SCIENCE, 1998, 281 (5385) :2013-2016

[3]

Buxton G.V., 1987, RAD CHEM PRINCIPLES

[4] Aptamer-capped nanocrystal quantum dots: A new method for label-free protein detection [J].

Choi, Jong Hyun ;

Chen, Kok Hao ;

Strano, Michael S. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (49) :15584-15585

[5] Self-Assembly of Quantum Dots and Carbon Nanotubes for Ultrasensitive DNA and Antigen Detection [J].

Cui, Daxiang ;

Pan, Bifeng ;

Zhang, Hong ;

Gao, Feng ;

Wu, Rina ;

Wang, Jingping ;

He, Rong ;

Asahi, Toru .

ANALYTICAL CHEMISTRY, 2008, 80 (21) :7996-8001

[6] Cancer nanotechnology: Opportunities and challenges [J].

Ferrari, M .

NATURE REVIEWS CANCER, 2005, 5 (03) :161-171

[7] Preparation of a novel polymeric fluorescent nanoparticle [J].

Gao, HF ;

Zhao, YQ ;

Fu, SK ;

Li, B ;

Li, MQ .

COLLOID AND POLYMER SCIENCE, 2002, 280 (07) :653-660

[8] CHEMISTRY OF AGN AGGREGATES IN AQUEOUS-SOLUTION - NONMETALLIC OLIGOMERIC CLUSTERS AND METALLIC PARTICLES [J].

HENGLEIN, A ;

MULVANEY, P ;

LINNERT, T .

FARADAY DISCUSSIONS, 1991, 92 :31-44

[9] Surface modification of poly(methyl methacrylate) used in the fabrication of microanalytical devices [J].

Henry, AC ;

Tutt, TJ ;

Galloway, M ;

Davidson, YY ;

McWhorter, CS ;

Soper, SA ;

McCarley, RL .

ANALYTICAL CHEMISTRY, 2000, 72 (21) :5331-5337

[10] RADIATION-INDUCED COPPER AGGREGATES AND OLIGOMERS [J].

KHATOURI, J ;

MOSTAFAVI, M ;

AMBLARD, J ;

BELLONI, J .

CHEMICAL PHYSICS LETTERS, 1992, 191 (3-4) :351-356

← 1 2 3 →