Self-assembled monolayer mediated silica coating of silver triangular nanoprisms

被引：136

作者：

Xue, Can

Chen, Xiaodong

Hurst, Sarah J.

Mirkin, Chad A.

机构：

[1] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA

[2] Northwestern Univ, Int Inst Nanotechnol, Evanston, IL 60208 USA

来源：

ADVANCED MATERIALS | 2007年 / 19卷 / 22期

关键词：

D O I：

10.1002/adma.200701506

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Silver core/silica shell (Ag@SiO2) nanoprisms are prepared by passivating silver nanoprism cores with 16-mercaptohexadecanoic acid (MHA), which prevents their etching and aggregation during the subsequent silica coating reaction. The resulting triangular Ag@SiO2 nanoprisms can be dispersed in organic media, environment in which the bare silver prisms are unstable, and modified with a wide variety of functional groups, including oligonucleotides.

引用

收藏

页码：4071 / +

页数：5

相关论文

共 28 条

[1] Fluorescent core-shell Ag@SiO2 nanocomposites for metal-enhanced fluorescence and single nanoparticle sensing platforms [J].

Aslan, Kadir ;

Wu, Meng ;

Lakowicz, Joseph R. ;

Geddes, Chris D. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (06) :1524-+

[2] Surface modification of silica nanoparticles to reduce aggregation and nonspecific binding [J].

Bagwe, RP ;

Hilliard, LR ;

Tan, WH .

LANGMUIR, 2006, 22 (09) :4357-4362

[3] Surface plasmon subwavelength optics [J].

Barnes, WL ;

Dereux, A ;

Ebbesen, TW .

NATURE, 2003, 424 (6950) :824-830

[4] Gold and silica-coated gold nanoparticles as thermographic labels for DNA detection [J].

Cerruti, Marta G. ;

Sauthier, Marc ;

Leonard, Donovan ;

Liu, Dage ;

Duscher, Gerard ;

Feldheim, Daniel L. ;

Franzen, Stefan .

ANALYTICAL CHEMISTRY, 2006, 78 (10) :3282-3288

[5] Langmuir-Blodgett patterning: A bottom-up way to build mesostructures over large areas [J].

Chen, Xiaodong ;

Lenhert, Steven ;

Hirtz, Michael ;

Lu, Nan ;

Fuchs, Harald ;

Chi, Lifeng .

ACCOUNTS OF CHEMICAL RESEARCH, 2007, 40 (06) :393-401

[6] Control of surface expression of functional groups on silica particles [J].

Deng, G ;

Markowitz, MA ;

Kust, PR ;

Gaber, BP .

MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS, 2000, 11 (02) :165-172

[7] Selective colorimetric detection of polynucleotides based on the distance-dependent optical properties of gold nanoparticles [J].

Elghanian, R ;

Storhoff, JJ ;

Mucic, RC ;

Letsinger, RL ;

Mirkin, CA .

SCIENCE, 1997, 277 (5329) :1078-1081

[8] A general method to coat colloidal particles with silica [J].

Graf, C ;

Vossen, DLJ ;

Imhof, A ;

van Blaaderen, A .

LANGMUIR, 2003, 19 (17) :6693-6700

[9] Weak interactions between deposited metal overlayers and organic functional groups of self-assembled monolayers [J].

Herdt, GC ;

Jung, DR ;

Czanderna, AW .

PROGRESS IN SURFACE SCIENCE, 1995, 50 (1-4) :103-129

[10] Gold nanostructures: engineering their plasmonic properties for biomedical applications [J].

Hu, Min ;

Chen, Jingyi ;

Li, Zhi-Yuan ;

Au, Leslie ;

Hartland, Gregory V. ;

Li, Xingde ;

Marquez, Manuel ;

Xia, Younan .

CHEMICAL SOCIETY REVIEWS, 2006, 35 (11) :1084-1094