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Proceedings Paper

Nanophotonics bio-sensor using gold nanostructure
Author(s): Masayuki Naya; Takeharu Tani; Yuichi Tomaru; Jingbo Li; Naoki Murakami
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Paper Abstract

As a bio-molecular-sensor with high sensitivity using surface-enhanced Raman scattering (SERS), we developed two dimensional gold nano-mushroom arrays (G-NAMS). Because the heads of the gold mushrooms are closely placed over all aspects on a surface of substrate, a lot of SERS enable spot, so called "hot spots", are formed. . By using G-NAMS, we observed Raman signals of some bio samples. In the experiment to observe the adenine, which is one of four basis of the gene, dissolved in PBS solution, adenine concentrations of 5 pM could be detected. FDTD simulation indicated, that strong Raman enhancement of G-NAMS occurs due to synergistic action of the hot spots produced between metal nanoparticles, and the optical resonant effect in the alumina layer.

Paper Details

Date Published: 26 August 2008
PDF: 9 pages
Proc. SPIE 7032, Plasmonics: Metallic Nanostructures and Their Optical Properties VI, 70321Q (26 August 2008); doi: 10.1117/12.800900
Show Author Affiliations
Masayuki Naya, FUJIFILM Corp. (Japan)
Takeharu Tani, FUJIFILM Corp. (Japan)
Yuichi Tomaru, FUJIFILM Corp. (Japan)
Jingbo Li, FUJIFILM Corp. (Japan)
Naoki Murakami, FUJIFILM Corp. (Japan)

Published in SPIE Proceedings Vol. 7032:
Plasmonics: Metallic Nanostructures and Their Optical Properties VI
Mark I. Stockman, Editor(s)

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