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Proceedings Paper

Nano-structured surface plasmon resonance sensor for sensitivity enhancement
Author(s): Jae-Ho Kim; Hyo-Sop Kim; Jin-Ho Kim; Sung-Wook Choi; Yong-Jin Cho
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Paper Abstract

A new nano-structured SPR sensor was devised to improve its sensitivity. Nano-scaled silica particles were used as the template to fabricate nano-structure. The surface of the silica particles was modified with thiol group and a single layer of the modified silica particles was attached on the gold or silver thin film using Langmuir-Blodgett (LB) method. Thereafter, gold or silver was coated on the template by an e-beam evaporator. Finally, the nano-structured surface with basin-like shape was obtained after removing the silica particles by sonication. Applying the new developed SPR sensor to a model food of alcoholic beverage, the sensitivities for the gold and silver nano-structured sensors, respectively, had 95% and 126% higher than the conventional one.

Paper Details

Date Published: 10 September 2008
PDF: 6 pages
Proc. SPIE 7041, Nanostructured Thin Films, 70410Y (10 September 2008); doi: 10.1117/12.794473
Show Author Affiliations
Jae-Ho Kim, Ajou Univ. (Korea, Republic of)
Hyo-Sop Kim, Ajou Univ. (Korea, Republic of)
Jin-Ho Kim, Ajou Univ. (Korea, Republic of)
Sung-Wook Choi, Korea Food Research Institute (Korea, Republic of)
Yong-Jin Cho, Korea Food Research Institute (Korea, Republic of)

Published in SPIE Proceedings Vol. 7041:
Nanostructured Thin Films
Geoffrey B. Smith; Akhlesh Lakhtakia, Editor(s)

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