2011年6月
A Colloidal Route to Detection of Organic Molecules Based on Surface-Enhanced Raman Spectroscopy Using Nanostructured Substrate Derived from Aerosols
JAPANESE JOURNAL OF APPLIED PHYSICS
- ,
- ,
- ,
- 巻
- 50
- 号
- 6
- 開始ページ
- 06GG10
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1143/JJAP.50.06GG10
- 出版者・発行元
- JAPAN SOC APPLIED PHYSICS
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. (C) 2011 The Japan Society of Applied Physics
- リンク情報
- ID情報
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- DOI : 10.1143/JJAP.50.06GG10
- ISSN : 0021-4922
- Web of Science ID : WOS:000291748900063