Dual-Stage Continuous-Flow Seedless Microfluidic Synthesis of Anisotropic Gold Nanocrystals

Authors

  • Suhanya Duraiswamy,

    1. Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore
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    • [+]Present Address: School of Mechanical & Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798

  • Saif A. Khan

    Corresponding author
    1. Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore
    2. Singapore-MIT Alliance National University of Singapore, Singapore
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Abstract

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Continuous-flow multi-step synthesis of anisotropic gold nanocrystals is demonstrated, in which gold nanoparticle seed synthesis and subsequent growth is accomplished in a two-stage droplet-based microfluidic device. The method successfully integrates synthesis of gold nanoparticle seeds and their further growth into spheres, rods, dog-bone shaped, and sharp-edged nanostructures with signature plasmon resonances.

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