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Plasmon-enhanced Resonance Raman Scattering and Fluorescence in Langmuir-Blodgett Monolayers

Plasmon-enhanced Resonance Raman Scattering and Fluorescence in Langmuir-Blodgett Monolayers

Golam Moula, Ricardo F Aroca

Anal Chem. 2011 Jan 1;83(1):284-8.

PMID: 21138285

Abstract:

Localized surface plasmon resonances in silver and gold nanostructures are engaged to enhance the inelastic Raman scattering and the fluorescence of a phopholipid containing a sulforhodamine 101 acid chloride dye known as Texas Red. The most efficient coupling and enhancement are attained when the excitation laser line is in resonance with both the chromophore and the plasmon absorption of the nanostructure, the case of surface-enhanced resonance Raman scattering, allowing single-molecule detection. The tagged phospholipid was incorporated into a single fatty acid Langmuir monolayer at varying concentrations and transferred onto an evaporated Ag nanoparticle film. Surface-enhanced fluorescence is achieved using shell-isolated silica-coated gold nanoparticles, an emission enhancement named SHINEF.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP82354196	Sulforhodamine 101 acid chloride		82354-19-6	Price

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