Study on the fluorescence characteristics of carbon dots

被引：143

作者：

Mao, Xiao-Jiao ^{[1
]}

Zheng, Hu-Zhi ^{[1
]}

Long, Yi-Juan ^{[1
]}

Du, Juan ^{[1
]}

Hao, Jian-Yu ^{[1
]}

Wang, Ling-Ling ^{[1
]}

Zhou, Dong-Bo ^{[1
]}

机构：

[1] Southwest Univ, Coll Chem & Chem Engn, Minist Educ, Key Lab Luminescence & Real Time Anal, Chongqing 400715, Peoples R China

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2010年 / 75卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Carbon dots; Passivation; Fluorescence quantum yield; Fluorescence lifetime; RESONANCE ENERGY-TRANSFER; ZNS QUANTUM DOTS; LUMINESCENT PROBES; NANOPARTICLES; NANOTUBES; PROTEIN; PHOTOLUMINESCENCE; FULLERENES; DONORS; ASSAY;

D O I：

10.1016/j.saa.2009.11.015

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Herein, we prepared water-soluble fluorescent carbon dots with diameter about 1.5 nm from cheap commercial lampblack. These fluorescent carbon nanoparticles are stable toward photobleaching and stable in water for more than half a year without fluorescence decrease. In order to improve its fluorescence properties, we passivated these nanoparticles with bisamino-terminated polyethylene glycol (PEG(1500N)). Therefore, both fluorescence quantum yield and lifetime increased after this progress. in addition, the passivated carbon dots were more inert to solvent than the bare one and showed different responses to pH change. (C) 2009 Elsevier B.V. All rights reserved.

引用

收藏

页码：553 / 557

页数：5

相关论文

共 35 条

[21] Self-assembly of CdSe-ZnS quantum dot bioconjugates using an engineered recombinant protein [J].

Mattoussi, H ;

Mauro, JM ;

Goldman, ER ;

Anderson, GP ;

Sundar, VC ;

Mikulec, FV ;

Bawendi, MG .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (49) :12142-12150

[22] Inhibition assay of biomolecules based on fluorescence resonance energy transfer (FRET) between quantum dots and gold nanoparticles [J].

Oh, E ;

Hong, MY ;

Lee, D ;

Nam, SH ;

Yoon, HC ;

Kim, HS .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (10) :3270-3271

[23] Hydroxylated quantum dots as luminescent probes for in situ hybridization [J].

Pathak, S ;

Choi, SK ;

Arnheim, N ;

Thompson, ME .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (17) :4103-4104

[24] Time-dependent density functional theoretical study of the absorption properties of BN-substituted C60 fullerenes [J].

Ramachandran, C. N. ;

Sathyamurthy, N. .

JOURNAL OF PHYSICAL CHEMISTRY A, 2007, 111 (30) :6901-6903

[25] Strong luminescence of solubilized carbon nanotubes [J].

Riggs, JE ;

Guo, ZX ;

Carroll, DL ;

Sun, YP .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (24) :5879-5880

[26] Optical limiting properties of suspended and solubilized carbon nanotubes [J].

Riggs, JE ;

Walker, DB ;

Carroll, DL ;

Sun, YP .

JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (30) :7071-7076

[27] Quantum-sized carbon dots for bright and colorful photoluminescence [J].

Sun, Ya-Ping ;

Zhou, Bing ;

Lin, Yi ;

Wang, Wei ;

Fernando, K. A. Shiral ;

Pathak, Pankaj ;

Meziani, Mohammed Jaouad ;

Harruff, Barbara A. ;

Wang, Xin ;

Wang, Haifang ;

Luo, Pengju G. ;

Yang, Hua ;

Kose, Muhammet Erkan ;

Chen, Bailin ;

Veca, L. Monica ;

Xie, Su-Yuan .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (24) :7756-7757

[28] Functionalized carbon nanotubes: Properties and applications [J].

Sun, YP ;

Fu, KF ;

Lin, Y ;

Huang, WJ .

ACCOUNTS OF CHEMICAL RESEARCH, 2002, 35 (12) :1096-1104

[29] Ultrafine biocompatible chitosan nanoparticles encapsulating multi-coloured quantum dots for bioapplications [J].

Tan, Wee Beng ;

Huang, Ning ;

Zhang, Yong .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2007, 310 (02) :464-470

[30]

TSUKASA T, 2007, J AM CHEM SOC, V129, P12388

← 1 2 3 4 →