Versatile Phase Transfer of Gold Nanoparticles from Aqueous Media to Different Organic Media

被引：71

作者：

Karg, Matthias ^{[2
,3
]}

Schelero, Natascha ^{[1
]}

Oppel, Claudia ^{[1
]}

Gradzielski, Michael ^{[1
]}

Hellweg, Thomas ^{[4
]}

von Klitzing, Regine ^{[1
]}

机构：

[1] TU Berlin, Stranski Lab, Inst Chem, D-10623 Berlin, Germany

[2] Univ Melbourne, Sch Chem, Melbourne, Vic 3010, Australia

[3] Univ Melbourne, Inst Bio21, Melbourne, Vic 3010, Australia

[4] Univ Bielefeld, D-33615 Bielefeld, Germany

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2011年 / 17卷 / 16期

关键词：

gold; nanoparticles; organic media; phase transitions; plasmon resonance; OPTICAL-PROPERTIES; SILVER NANOPARTICLES; MICROGELS; NANORODS; SIZE; COLLOIDS; GROWTH;

D O I：

10.1002/chem.201003340

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A novel, simple, and very efficient method to prepare hydrophobically modified gold particles is presented. Gold nanoparticles of different sizes and polydispersities were prepared. The diameter of the gold particles ranges from 5 to 37 nm. All systems were prepared in aqueous solution stabilized by citrate and afterwards transferred into an organic phase by using amphiphilic alkylamine ligands with different alkyl chain lengths. The chain length was varied between 8 and 18 alkyl groups. Depending on the particle size and the alkylamine, different transfer efficiencies were obtained. In some cases, the phase transfer has a yield of about 100%. After drying, the particles can be redispersed in different organic solvents. Characterization of the particles before and after transfer was performed by using UV/Vis spectroscopy, transmission electron microscopy (TEM), and small-angle X-ray scattering (SAXS) techniques. The effect of organic solvents with various refractive indices on the plasmon band position was investigated.

引用

页码：4648 / 4654

页数：7

共 37 条

[11] Multiresponsive Hybrid Colloids Based on Gold Nanorods and Poly(NIPAM-co-allylacetic acid) Microgels: Temperature- and pH-Tunable Plasmon Resonance [J].

Karg, Matthias ;

Lu, Yan ;

Carbo-Argibay, Enrique ;

Pastoriza-Santos, Isabel ;

Perez-Juste, Jorge ;

Liz-Marzan, Luis M. ;

Hellweg, Thomas .

LANGMUIR, 2009, 25 (05) :3163-3167

[12] Formation of thermoresponsive gold nanoparticle/PNIPAAm hybrids by surface-initiated, atom transfer radical polymerization in aqueous media [J].

Kim, DJ ;

Kang, SM ;

Kong, B ;

Kim, WJ ;

Paik, HJ ;

Choi, H ;

Choi, IS .

MACROMOLECULAR CHEMISTRY AND PHYSICS, 2005, 206 (19) :1941-1946

[13] Platonic gold nanocrystals [J].

Kim, F ;

Connor, S ;

Song, H ;

Kuykendall, T ;

Yang, PD .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (28) :3673-3677

[14]

Kim J.-H., 2004, POLYM MAT SCI ENG, V90, P637

[15] Phase transfer of platinum nanoparticles from aqueous to organic solutions using fatty amine molecules [J].

Kumar, A ;

Joshi, HM ;

Mandale, AB ;

Srivastava, R ;

Adyanthaya, SD ;

Pasricha, R ;

Sastry, M .

JOURNAL OF CHEMICAL SCIENCES, 2004, 116 (05) :293-300

[16] Phase transfer of silver nanoparticles from aqueous to organic solutions using fatty amine molecules [J].

Kumar, A ;

Joshi, H ;

Pasricha, R ;

Mandale, AB ;

Sastry, M .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2003, 264 (02) :396-401

[17] Investigation into the interaction between surface-bound alkylamines and gold nanoparticles [J].

Kumar, A ;

Mandal, S ;

Selvakannan, PR ;

Pasricha, R ;

Mandale, AB ;

Sastry, M .

LANGMUIR, 2003, 19 (15) :6277-6282

[18] CHEMICAL CATALYSIS BY COLLOIDS AND CLUSTERS [J].

LEWIS, LN .

CHEMICAL REVIEWS, 1993, 93 (08) :2693-2730

[19] (Non-carbon) anisotropic nanomaterials [J].

Liz Marzan, Luis M. .

JOURNAL OF MATERIALS CHEMISTRY, 2006, 16 (40) :3891-3892

[20]

Liz-Marzan L. M., 2007, PHOTONIK, V2, P58

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