Silver-gold nanotubes containing hot spots on their surface: facile synthesis and surface-enhanced Raman scattering investigations

被引：22

作者：

Costa, Jean C. S. ^{[1
]}

Corio, Paola ^{[1
]}

Camargo, Pedro H. C. ^{[1
]}

机构：

[1] Univ Sao Paulo, Inst Quim, Dept Quim Fundamental, BR-05508000 Sao Paulo, Brazil

来源：

RSC ADVANCES | 2012年 / 2卷 / 26期

基金：

巴西圣保罗研究基金会;

关键词：

REPLACEMENT REACTION; SPECTROSCOPY; NANOSTRUCTURES; NANOWIRES; NANOCUBES; METALS; MICRO; AG;

D O I：

10.1039/c2ra21562d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report the synthesis of silver-gold nanotubes containing hot spots along their surface. The Ag-Au nanotubes exhibited exceptional SERS properties compared to silver nanowires, enabling the detection of crystal violet in the 10(-10) M regime, as well as 9-nitroanthracene and benzo[a] pyrene at 3.3 x 10(-7) M.

引用

页码：9801 / 9804

页数：4

共 26 条

[1] Synthesis and biomedical applications of hollow nanostructures [J].

An, Kwangjin ;

Hyeon, Taeghwan .

NANO TODAY, 2009, 4 (04) :359-373

[2] Synthesis and Optical Properties of Cubic Gold Nanoframes [J].

Au, Leslie ;

Chen, Yeechi ;

Zhou, Fei ;

Camargo, Pedro H. C. ;

Lim, Byungkwon ;

Li, Zhi-Yuan ;

Ginger, David S. ;

Xia, Younan .

NANO RESEARCH, 2008, 1 (06) :441-449

[3] Measuring the surface-enhanced Raman scattering enhancement factors of hot spots formed between an individual Ag nanowire and a single Ag nanocube [J].

Camargo, Pedro H. C. ;

Cobley, Claire M. ;

Rycenga, Matthew ;

Xia, Younan .

NANOTECHNOLOGY, 2009, 20 (43)

[4] One-dimensional nanostructures of metals: Large-scale synthesis and some potential applications [J].

Chen, Jingyi ;

Wiley, Benjamin J. ;

Xia, Younan .

LANGMUIR, 2007, 23 (08) :4120-4129

[5] Synthesis and Optical Properties of Hybrid and Alloy Plasmonic Nanoparticles [J].

Cortie, Michael B. ;

McDonagh, Andrew M. .

CHEMICAL REVIEWS, 2011, 111 (06) :3713-3735

[6] Understanding the Effect of Adsorption Geometry over Substrate Selectivity in the Surface-Enhanced Raman Scattering Spectra of Simazine and Atrazine [J].

Costa, Jean C. S. ;

Ando, Romulo A. ;

Camargo, Pedro H. C. ;

Corio, Paola .

JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (10) :4184-4190

[7] Electromagnetic fields around silver nanoparticles and dimers [J].

Hao, E ;

Schatz, GC .

JOURNAL OF CHEMICAL PHYSICS, 2004, 120 (01) :357-366

[8] Comparative study on the far-field spectra and near-field amplitudes for silver and gold nanocubes irradiated at 514, 633 and 785 nm as a function of the edge length [J].

Hermoso, W. ;

Alves, T. V. ;

Ornellas, F. R. ;

Camargo, P. H. C. .

EUROPEAN PHYSICAL JOURNAL D, 2012, 66 (05)

[9] Bimetallic silver-gold nanowires: fabrication and use in surface-enhanced Raman scattering [J].

Hunyadi, Simona E. ;

Murphy, Catherine J. .

JOURNAL OF MATERIALS CHEMISTRY, 2006, 16 (40) :3929-3935

[10] Ultrasensitive chemical analysis by Raman spectroscopy [J].

Kneipp, K ;

Kneipp, H ;

Itzkan, I ;

Dasari, RR ;

Feld, MS .

CHEMICAL REVIEWS, 1999, 99 (10) :2957-+

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