Chiral transformation: from single nanowire to double helix
Journal of the American Chemical Society, 2011•ACS Publications
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.
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.
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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