A Colloidal Route to Detection of Organic Molecules Based on Surface-Enhanced Raman Spectroscopy Using Nanostructured Substrate Derived from Aerosols
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概要
- 論文の詳細を見る
A detection method based on the surface-enhanced Raman spectroscopy (SERS)-active substrate derived from aerosol nanoparticles and a colloidal suspension for detecting organic molecules of a model analyte (a pesticide) is proposed. This approach can detect the molecules of the derived from its solution with the concentration levels of ppb. For substrate fabrication, a gas-phase method is used to directly deposit Ag nanoparticles on to a silicon substrate having pyramidal structures. By mixing the target analyte with a suspension of Ag colloids purchased in advance, clotianidin analyte on Ag colloid can exist in junctions of co-aggregated Ag colloids. Using (i) a nanostructured substrate made from aerosol nanoparticles and (ii) colloidal suspension can increase the number of activity spots.
- 2011-06-25
著者
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Lenggoro I.
Graduate School Of Bio-applications And Systems Engineering Tokyo University Of Agriculture And Tech
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Kamimoto Yoshihito
Kanagawa Industrial Technology Center
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Kakuta Hideo
Plant Ecochemicals Research Center
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Lenggoro I.
Graduate School of Bio-Applications and Systems Engineering, Koganei, Tokyo 184-8588, Japan
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Gen Masao
Graduate School of Bio-Applications and Systems Engineering, Koganei, Tokyo 184-8588, Japan
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Kamimoto Yoshihito
Kanagawa Industrial Technology Center, Ebina, Kanagawa 243-0435, Japan
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