Title :
Fabrication of SERS active noble metallic nanostructure by synchrotron radiation induced photochemical reaction
Author :
Matsumoto, T. ; Okada, I. ; Sakurai, I. ; Utsumi, Y. ; Yamaguchi, A.
Author_Institution :
Lab. of Adv. Sci. & Technol. for Ind., Univ. of Hyogo, Hyoto, Japan
Abstract :
Synchrotron (SR) X-ray radiation induced gold nanoparticles (AuNPs) creation. AuNPs are aggregated into clusters with the increase of the X-ray irradiation time. The aggregation characteristics are explained by considering how to modify the nanoparticles deposition process by Derjaguin-Landau-Verwey-Overbeek (DLVO) theory interactions and van der Waals forces. We demonstrated surface enhanced Raman scattering (SERS) measurement for 4,4´-Bipyridine (4bpy) as the Raman active molecule using the AuNPs produced by SR on a Si substrate. This structure brought the success of detection of 1 nM 4bpy. This method allows easy fabrication of SERS-active area in a microfluidic device.
Keywords :
gold; nanofabrication; nanoparticles; photochemistry; surface enhanced Raman scattering; synchrotron radiation; van der Waals forces; 4,4´-bipyridine Raman active molecule; Au; AuNP clusters; AuNP creation; DLVO interactions; Derjaguin-Landau-Verwey-Overbeek theory; SERS active noble metallic nanostructure; SERS measurement; X-ray irradiation time; gold nanoparticles; microfluidic device; nanoparticle deposition process; surface enhanced Raman scattering; synchrotron X-ray radiation; synchrotron radiation induced photochemical reaction; van der Waals forces; Aggregates; Gold; Nanoparticles; Radiation effects; Silicon; Substrates; Surface morphology; SERS-active; hot spots;
Conference_Titel :
Electronics Packaging and iMAPS All Asia Conference (ICEP-IACC), 2015 International Conference on
Conference_Location :
Kyoto
Print_ISBN :
978-4-9040-9012-1
DOI :
10.1109/ICEP-IAAC.2015.7111136
