Evaluation of Electrodeposited Gold Nanostructures for Applications in QCM Sensing

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  • TERAO Kyohei
    Department of Intelligent Mechanical Systems Engineering, Kagawa University
  • KAKITA Chihiro
    Department of Intelligent Mechanical Systems Engineering, Kagawa University
  • NAGASE Noriko
    Department of Intelligent Mechanical Systems Engineering, Kagawa University
  • MIYANISHI Nobumitsu
    Department of Food Life Sciences, Toyo University
  • SUZUKI Takaaki
    Department of Intelligent Mechanical Systems Engineering, Kagawa University
  • TAKAO Hidekuni
    Department of Intelligent Mechanical Systems Engineering, Kagawa University
  • SHIMOKAWA Fusao
    Department of Intelligent Mechanical Systems Engineering, Kagawa University
  • OOHIRA Fumikazu
    Department of Intelligent Mechanical Systems Engineering, Kagawa University

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Abstract

The electrodeposition of gold nanostructures increases the surface area of a biosensor, which brings an enhancement of the sensitivity by increasing the amount of analyte binding to the surface. To evaluate the relationship among the surface structure, the area and the analyte binding, we quantitatively analyzed them for quartz crystal microbalance (QCM) sensing by scanning electron microscopy and cyclic voltammetry measurements. The results indicate a several-times increase of analyte bindings, and also the limitation of the sensing performance.

Journal

  • Analytical Sciences

    Analytical Sciences 28 (3), 291-291, 2012

    The Japan Society for Analytical Chemistry

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