Surface-Enhanced Raman Spectroscopy
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TLDR
The use of nanosphere lithography for the fabrication of highly reproducible and robust SERS substrates is described and progress in applying SERS to the detection of chemical warfare agents and several biological molecules is described.Abstract:
The ability to control the size, shape, and material of a surface has reinvigorated the field of surface-enhanced Raman spectroscopy (SERS). Because excitation of the localized surface plasmon resonance of a nanostructured surface or nanoparticle lies at the heart of SERS, the ability to reliably control the surface characteristics has taken SERS from an interesting surface phenomenon to a rapidly developing analytical tool. This article first explains many fundamental features of SERS and then describes the use of nanosphere lithography for the fabrication of highly reproducible and robust SERS substrates. In particular, we review metal film over nanosphere surfaces as excellent candidates for several experiments that were once impossible with more primitive SERS substrates (e.g., metal island films). The article also describes progress in applying SERS to the detection of chemical warfare agents and several biological molecules.read more
Citations
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Localized Surface Plasmon Resonance Spectroscopy and Sensing
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Shape‐Controlled Synthesis of Metal Nanocrystals: Simple Chemistry Meets Complex Physics?
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Carbon nanodots: synthesis, properties and applications
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Surface-enhanced Raman spectroscopy: concepts and chemical applications.
TL;DR: Chemical applications of SERS cover a broad range of topics such as catalysis and spectroelectrochemistry, single-molecule detection, and (bio)analytical chemistry.
References
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Journal ArticleDOI
Statistics of single-molecule surface enhanced Raman scattering signals: fluctuation analysis with multiple analyte techniques.
TL;DR: The method is applied to a concrete example of bianalyte statistics in silver colloidal solutions and its significance is presented to provide a systematic framework with which several aspects of the statistics of SM-SERS signals can be analyzed in general.
Journal ArticleDOI
Raman spectroscopy on transition metals.
TL;DR: An overview of recent progresses in the field of Raman spectroscopy on transition metals, including experimental, theory, and applications is given, including the preparation of well-ordered or well-defined nanostructures, and core-shell nanoparticles for investigating species with extremely weak SERS signals, as well as some new emerging techniques.
Journal ArticleDOI
Surface-enhanced Raman scattering from transition metals with special surface morphology and nanoparticle shape.
TL;DR: A preliminary theoretical calculation, using the three-dimensional finite difference time domain (3D-FDTD) method, was performed to evaluate the local electromagnetic field on transition metal surfaces and the result is in good agreement with the experimental data.
Journal Article
Surface-enhanced raman scattering : a new tool for biomedical spectroscopy
Journal ArticleDOI
Re-examining the origins of spectral blinking in single-molecule and single-nanoparticle SERS
TL;DR: Detailed temperature dependence and light-intensity studies indicate that blinking SERS contains both a thermo-activated component and a light-induced component.
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