Size-controlled growth of colloidal gold nanoplates and their high-purity acquisition

被引：37

作者：

Fan, X. ^{[1
,2
]}

Guo, Z. R. ^{[3
]}

Hong, J. M. ^{[4
]}

Zhang, Y. ^{[1
,2
]}

Zhang, J. N. ^{[3
]}

Gu, N. ^{[1
,2
]}

机构：

[1] Southeast Univ, State Key Lab Bioelect, Nanjing 210096, Peoples R China

[2] Southeast Univ, Jiangsu Key Lab Biomat & Devices, Nanjing 210096, Peoples R China

[3] Nanjing Med Univ, Res Inst Cardiovasc Dis, Affiliated Hosp 1, Nanjing 210029, Peoples R China

[4] Nanjing Univ, Modern Ctr Anal, Nanjing 210093, Peoples R China

来源：

NANOTECHNOLOGY | 2010年 / 21卷 / 10期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

NANOPRISMS; NANORODS; SILVER; NANOPARTICLES; THICKNESS; CLUSTERS; THERAPY; METALS;

D O I：

10.1088/0957-4484/21/10/105602

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A facile while flexible approach to size-controllable high-purity colloidal gold nanoplates has been presented. By adjusting the quantity of seeds and I-through a seed-mediated, cetyltrimethylammonium bromide (CTABr)-assisted synthetic system, the edge length of the gold nanoplates can be adjusted from 140 to 30 nm without changing their thickness or crystal structure. By simply increasing the ion concentration of the reaction solution, the as-prepared gold nanoplates can be deposited due to the different electrostatic aggregation effects between nanoplates and spherical nanoparticles. Effective storage methods to keep the structural and optical stability of these gold nanoplates are also proposed.

引用

页数：7

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