1. Configuration-controlled Au nanocluster arrays on inverse micelle nano-patterns: versatile platforms for SERS and SPR sensors
- Author
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Ji Eun Lee, Seokhyun Yoon, Hae Young Shin, Kyungwha Chung, Li Na Quan, Saji Thomas Kochuveedu, Min Ji Yoon, Seyoung Moon, Yu Jin Jang, Dong Ha Kim, Jin Kon Kim, Jihyeon Kim, Dong-Hyun Kim, Hana Šípová, Yoon Hee Jang, Barbora Špačková, Won Joon Cho, and Jiří Homola
- Subjects
Materials science ,Nanoporous ,Surface Properties ,Nanoparticle ,Biotin ,Metal Nanoparticles ,Nanotechnology ,Stereoisomerism ,Biosensing Techniques ,Surface Plasmon Resonance ,Spectrum Analysis, Raman ,Micelle ,Nanostructures ,symbols.namesake ,Absorption band ,Monolayer ,Nano ,symbols ,General Materials Science ,Gold ,Streptavidin ,Sulfhydryl Compounds ,Raman scattering ,Micelles ,Localized surface plasmon - Abstract
Nanopatterned 2-dimensional Au nanocluster arrays with controlled configuration are fabricated onto reconstructed nanoporous poly(styrene-block-vinylpyridine) inverse micelle monolayer films. Near-field coupling of localized surface plasmons is studied and compared for disordered and ordered core-centered Au NC arrays. Differences in evolution of the absorption band and field enhancement upon Au nanoparticle adsorption are shown. The experimental results are found to be in good agreement with theoretical studies based on the finite-difference time-domain method and rigorous coupled-wave analysis. The realized Au nanopatterns are exploited as substrates for surface-enhanced Raman scattering and integrated into Kretschmann-type SPR sensors, based on which unprecedented SPR-coupling-type sensors are demonstrated.
- Published
- 2013