Highly Sensitive and Selective Chemical Sensing Techniques Using Gold Nanoparticle Assemblies and Superstructures

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Other Title
  • 金ナノ粒子を利用する増感化学センサー技術
  • 分析化学総説 金ナノ粒子を利用する増感化学センサー技術
  • ブンセキ カガク ソウセツ キン ナノ リュウシ オ リヨウスル ゾウカン カガク センサー ギジュツ

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Description

Recently, there has been keen interest in using metal nanoparticles in analytical chemistry. This review article discusses their sensor applications by focusing on several unique physicochemical properties of metal nanoparticles, especially of gold nanoparticles. Gold nanoparticles have been used in many areas of bioanalytical chemistry through there unique properties, such as extremely high extinction coefficients and straightforwardness in introducing surface functionality. This review article discusses aggregation-based analysis for DNA and other molecules. Also discussed are highly sensitive and selective analytical features of metal nanoparticle assemblies and superstructures with emphasis on electronic sensor applications, which do not require any sophisticated instrumentation or chemical systems, such as optical devices and fluorescent tag molecules. Spectroscopic applications of nanoparticles and their assemblies in the single molecular-level format are also reviewed.<br>

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 56 (4), 201-211, 2007

    The Japan Society for Analytical Chemistry

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