Terpene detection based on localized surface plasma resonance of thiolate-modified Au nanoparticles

Bin Chen, Chuanjun Liu, Manami Ota, Kenshi Hayashi

研究成果: ジャーナルへの寄稿学術誌査読

23 被引用数 (Scopus)

抄録

The detection of terpene vapors, a group of biomarker vapors emitted by plants during their growth process, is an efficient way to monitor plant growth status and control plant pests and disease. In this study, a gas sensor based on the localized surface plasma resonance (LSPR) of Au nanoparticles (Au NPs) is proposed for the terpene vapors detection. Au ion sputtering method is used to deposit Au NPs on transparent glass substrates. The dependence of transmission spectra on the morphology of Au NPs prepared by different sputtering conditions is investigated. In order to enhance the sensitivity and selectivity of the sensor, thiolate modification is applied to form the selective soluble monolayer on the surface of Au NPs. The results indicate that different thiolates could form different steric capping layers, and the responding ability of the LSPR sensor is verified by a red-shift of the minimum transmittance in wavelength (Δλmin) and a decrease in the minimum transmittance (ΔTmin) upon exposure to terpene vapors.

本文言語英語
論文番号6374202
ページ(範囲)1307-1314
ページ数8
ジャーナルIEEE Sensors Journal
13
4
DOI
出版ステータス出版済み - 2月 20 2013

!!!All Science Journal Classification (ASJC) codes

  • 器械工学
  • 電子工学および電気工学

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