A systems approach towards the stoichiometry-controlled hetero-assembly of nanoparticles

被引：178

作者：

Wang, Yong ^{[1
]}

Chen, Gang ^{[1
]}

Yang, Miaoxin ^{[1
]}

Silber, Georg ^{[1
]}

Xing, Shuangxi ^{[1
]}

Tan, Li Huey ^{[1
]}

Wang, Feng ^{[2
]}

Feng, Yuhua ^{[1
]}

Liu, Xiaogang ^{[2
]}

Li, Shuzhou ^{[3
]}

Chen, Hongyu ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Phys & Math Sci, Div Chem & Biol Chem, Singapore 637371, Singapore

[2] Natl Univ Singapore, Dept Chem, Singapore 117543, Singapore

[3] Nanyang Technol Univ, Sch Mat Sci & Engn, Div Mat Sci, Singapore 639798, Singapore

来源：

NATURE COMMUNICATIONS | 2010年 / 1卷

关键词：

GOLD NANOPARTICLES; ASYMMETRIC FUNCTIONALIZATION; PARTICLE-SIZE; SHAPE CONTROL; DIMERS; PHASE; NANOCRYSTALS; GROWTH; CHAINS;

D O I：

10.1038/ncomms1089

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A central theme in nanotechnology is to advance the fundamental understanding of nanoscale component assembly, thereby allowing rational structural design that may lead to materials with novel properties and functions. Nanoparticles (NPs) are often regarded as 'artificial atoms', but their 'reactions' are not readily controllable. Here, we demonstrate a complete nanoreaction system whereby colloidal NPs are rationally assembled and purified. Two types of functionalized gold NPs (A and B) are bonded to give specific products AB, AB(2), AB(3) and AB(4). The stoichiometry control is realized by fine-tuning the charge repulsion among the B-NPs. The products are protected by a polymer, which allows their isolation in high purity. The integration of hetero-assembly, stoichiometry control, protection scheme and separation method may provide a scalable way to fabricate sophisticated nanostructures.

引用

页数：7

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