Surfactant-free synthesis and functionalization of highly fluorescent gold quantum dots

被引：115

作者：

Liu, Xiaofeng ^{[1
,2
]}

Li, Cuihong ^{[1
,2
]}

Xu, Jialiang ^{[1
,2
]}

Lv, Jing ^{[1
,2
]}

Zhu, Mei ^{[1
,2
]}

Guo, Yanbing ^{[1
,2
]}

Cui, Shuang ^{[1
,2
]}

Liu, Huibiao ^{[1
]}

Wang, Shu ^{[1
]}

Li, Yuliang ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Chem, Key Lab Organ Solids, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100080, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2008年 / 112卷 / 29期

关键词：

D O I：

10.1021/jp8028227

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A novel route has been developed for surfactant-free synthesis of highly fluorescent gold quantum dots (GQDs) in N,N-dimethylformamide (DMF). The as-prepared GQDs show instinctive fluorescence and good solubility in water. The formation mechanism and functionalization of GQDs were investigated by UV-vis spectra, fluorescence excitation and emission spectra, mass spectra, and TEM observation. Ligand-dependent optical properties of functionalized GQDs were found to be dramatically different. The approach provides a facile method of functionalization of bare GQDs for further applications, such as fluorescent biolabels, energy transfer units, and light-emitting devices.

引用

页码：10778 / 10783

页数：6

共 46 条

[1] DETERMINATION OF ABSOLUTE FLUORESCENCE QUANTUM EFFICIENCY OF QUININE BISULFATE IN AQUEOUS-MEDIUM BY OPTOACOUSTIC SPECTROMETRY [J].

ADAMS, MJ ;

HIGHFIELD, JG ;

KIRKBRIGHT, GF .

ANALYTICAL CHEMISTRY, 1977, 49 (12) :1850-1852

[2] Chemistry and properties of nanocrystals of different shapes [J].

Burda, C ;

Chen, XB ;

Narayanan, R ;

El-Sayed, MA .

CHEMICAL REVIEWS, 2005, 105 (04) :1025-1102

[3] Gold nanoelectrodes of varied size: Transition to molecule-like charging [J].

Chen, SW ;

Ingram, RS ;

Hostetler, MJ ;

Pietron, JJ ;

Murray, RW ;

Schaaff, TG ;

Khoury, JT ;

Alvarez, MM ;

Whetten, RL .

SCIENCE, 1998, 280 (5372) :2098-2101

[4] Reversible tuning of silver quantum dot monolayers through the metal-insulator transition [J].

Collier, CP ;

Saykally, RJ ;

Shiang, JJ ;

Henrichs, SE ;

Heath, JR .

SCIENCE, 1997, 277 (5334) :1978-1981

[5] Gold nanoparticles: Assembly, supramolecular chemistry, quantum-size-related properties, and applications toward biology, catalysis, and nanotechnology [J].

Daniel, MC ;

Astruc, D .

CHEMICAL REVIEWS, 2004, 104 (01) :293-346

[6] Etching colloidal gold nanocrystals with hyperbranched and multivalent polymers: A new route to fluorescent and water-soluble atomic clusters [J].

Duan, Hongwei ;

Nie, Shuming .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (09) :2412-+

[7] In vivo imaging of quantum dots encapsulated in phospholipid micelles [J].

Dubertret, B ;

Skourides, P ;

Norris, DJ ;

Noireaux, V ;

Brivanlou, AH ;

Libchaber, A .

SCIENCE, 2002, 298 (5599) :1759-1762

[8] Electron transfer in self-assembled inorganic polyelectrolyte/metal nanoparticle heterostructures [J].

Feldheim, DL ;

Grabar, KC ;

Natan, MJ ;

Mallouk, TE .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1996, 118 (32) :7640-7641

[9] Photovoltaic cells using composite nanoclusters of porphyrins and fullerenes with gold nanoparticles [J].

Hasobe, T ;

Imahori, H ;

Kamat, PV ;

Ahn, TK ;

Kim, SK ;

Kim, D ;

Fujimoto, A ;

Hirakawa, T ;

Fukuzumi, S .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (04) :1216-1228

[10] Bidentate dicarboxylate capping groups and photosensitizers control the size of IrO2 nanoparticle catalysts for water oxidation [J].

Hoertz, Paul G. ;

Kim, Yeong-Il ;

Youngblood, W. Justin ;

Mallouk, Thomas E. .

JOURNAL OF PHYSICAL CHEMISTRY B, 2007, 111 (24) :6845-6856

← 1 2 3 4 5 →