Chiral Transformation: From Single Nanowire to Double Helix

被引：92

作者：

Wang, Yong ^{[1
]}

Wang, Qingxiao ^{[2
,3
]}

Sun, Hang ^{[1
]}

Zhang, Weiqing ^{[4
]}

Chen, Gang ^{[1
]}

Wang, Yawen ^{[1
]}

Shen, Xiaoshuang ^{[1
]}

Han, Yu ^{[2
,3
]}

Lu, Xianmao ^{[4
]}

Chen, Hongyu ^{[1
]}

机构：

[1] Nanyang Technol Univ, Div Chem & Biol Chem, Singapore 637371, Singapore

[2] King Abdullah Univ Sci & Technol, Adv Membranes & Porous Mat Ctr, Thuwal 239556900, Saudi Arabia

[3] King Abdullah Univ Sci & Technol, Core Lab Imaging & Characterizat, Thuwal 239556900, Saudi Arabia

[4] Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 117576, Singapore

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2011年 / 133卷 / 50期

关键词：

GOLD NANOWIRES; AU NANOWIRES; NANOPARTICLES; ULTRATHIN; NANOSTRUCTURES; PALLADIUM; CONFINEMENT; NANOSPRINGS; NANOBELTS;

D O I：

10.1021/ja208121c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report a new type of water-soluble ultrathin Au-Ag alloy nanowire (NW), which exhibits unprecedented behavior in a colloidal solution. Upon growth of a thin metal (Pd, Pt, or Au) layer, the NW winds around itself to give a metallic double helix. We propose that the winding originates from the chirality within the as-synthesized Au-Ag NWs, which were induced to untwist upon metal deposition.

引用

页码：20060 / 20063

页数：4

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