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Gram-Scale Synthesis of Soluble, Near-Monodisperse Gold Nanorods and Other Anisotropic Nanoparticles


  • Nikhil R. Jana Dr.

    1. Department of Chemistry, Raja Rammohun Roy Mahavidyalaya, Radhanagar-712406, Hooghly, WB, India
    2. Present address: Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, The Nanos, Singapore 138669, Singapore, Fax: (+65) 6478-9081
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An aqueous surfactant-based colloidal chemical method is reported for the synthesis of anisotropic noble-metal nanoparticles on the milligram to multigram scale. Fine control of the nucleation-growth kinetics and rodlike micelle-induced breaking of symmetry at the early stage of particle growth are responsible for high-quality anisotropic nanoparticles. Near-monodisperse gold and silver nanorods, spheroids, nanowires, platelets, or cubes of 4–50 nm dimension and controllable aspect ratio can be prepared. The method may also be extended to semiconductor systems.

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