Chiral Transformation: From Single Nanowire to Double Helix
Journal of the American Chemical Society2011Vol. 133(50), pp. 20060–20063
Citations Over TimeTop 10% of 2011 papers
Yong Wang, Qingxiao Wang, Hang Sun, Weiqing Zhang, Gang Chen, Yawen Wang, Xiaoshuang Shen, Yu Han, Xianmao Lu, Hongyu Chen
Abstract
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.
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