A versatile strategy for quantum dot ligand exchange

被引：273

作者：

Dubois, Fabien

Mahler, Benoit

Dubertret, Benoit

Doris, Eric ^{[1
]}

Mioskowski, Charles

机构：

[1] CEA Saclay, DBJC, DSV, Serv Marquage Mol & Chim Bioorgan, F-91191 Gif Sur Yvette, France

[2] CNRS, UPR5, ESPCI, Lab Spectroscopie Lumiere Polarisee, F-75005 Paris, France

[3] CNRS, UMR 7514, Fac Pharm, Lab Synthese Bioorgan, F-67401 Illkirch Graffenstaden, France

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2007年 / 129卷 / 03期

关键词：

D O I：

10.1021/ja067742y

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new and efficient procedure for ligand exchange on core-shell fluorescent nanocrystals is reported. The process involves the reaction of carbon disulfide with a ligand containing an amino group. The resulting dithiocarbamate is strongly bound to the surface of the quantum dots leading to a secure coating of the nanoparticle. The strategy was applied to the aqueous transfer of quantum dots.

引用

收藏

页码：482 / 483

页数：2

相关论文

共 17 条

[1] Photochemical instability of CdSe nanocrystals coated by hydrophilic thiols [J].

Aldana, J ;

Wang, YA ;

Peng, XG .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (36) :8844-8850

[2] Perspectives on the physical chemistry of semiconductor nanocrystals [J].

Alivisatos, AP .

JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (31) :13226-13239

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

Bruchez, M ;

Moronne, M ;

Gin, P ;

Weiss, S ;

Alivisatos, AP .

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

[4] Quantum dot bioconjugates for ultrasensitive nonisotopic detection [J].

Chan, WCW ;

Nie, SM .

SCIENCE, 1998, 281 (5385) :2016-2018

[5] 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

[6] Oligomeric Ligands for luminescent and stable nanocrystal quantum dots [J].

Kim, S ;

Bawendi, MG .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (48) :14652-14653

[7] Photophysical properties of biologically compatible CdSe quantum dot structures [J].

Kloepfer, JA ;

Bradforth, SE ;

Nadeau, JL .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (20) :9996-10003

[8] Quantum dots in biological and biomedical research: Recent progress and present challenges [J].

Klostranec, Jesse M. ;

Chan, Warren C. W. .

ADVANCED MATERIALS, 2006, 18 (15) :1953-1964

[9] The band edge luminescence of surface modified CdSe nanocrystallites: Probing the luminescing state [J].

Kuno, M ;

Lee, JK ;

Dabbousi, BO ;

Mikulec, FV ;

Bawendi, MG .

JOURNAL OF CHEMICAL PHYSICS, 1997, 106 (23) :9869-9882

[10] Quantum dots for live cells, in vivo imaging, and diagnostics [J].

Michalet, X ;

Pinaud, FF ;

Bentolila, LA ;

Tsay, JM ;

Doose, S ;

Li, JJ ;

Sundaresan, G ;

Wu, AM ;

Gambhir, SS ;

Weiss, S .

SCIENCE, 2005, 307 (5709) :538-544