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10 September 2008 Nano-structured surface plasmon resonance sensor for sensitivity enhancement
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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.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jae-Ho Kim, Hyo-Sop Kim, Jin-Ho Kim, Sung-Wook Choi, and Yong-Jin Cho "Nano-structured surface plasmon resonance sensor for sensitivity enhancement", Proc. SPIE 7041, Nanostructured Thin Films, 70410Y (10 September 2008);

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