Surface-Enhanced Raman Spectroscopy
Reads0
Chats0
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
More filters
Journal ArticleDOI
Electron-beam lithography of gold nanostructures for surface-enhanced Raman scattering
TL;DR: In this article, the fabrication of nanostructured substrates with precisely controlled geometries and arrangements plays an important role in studies of surface-enhanced Raman scattering (SERS).
Journal ArticleDOI
Lipid Oxidation in Low-moisture Food: A Review.
Leann Barden,Eric A. Decker +1 more
TL;DR: Current theories and available research on lipid oxidation in low-moisture foods are summarized in order to lay the groundwork for new lipid oxidation rate-reduction strategies.
Journal ArticleDOI
DNA detection using nanostructured SERS substrates with Rhodamine B as Raman label.
Cheng Fang,Ajay Agarwal,K.D. Buddharaju,Nizamudin Mohamed Khalid,Shaik Mohamed Salim,Effendi Widjaja,Marc Garland,N. Balasubramanian,Dim-Lee Kwong +8 more
TL;DR: A technique is demonstrated to detect DNA hybridization at low concentrations, based on Surface-Enhanced Raman Scattering (SERS) using silicon nanostructures coated with gold-silver as substrate.
Journal ArticleDOI
Silver-coated magnetite–carbon core–shell microspheres as substrate-enhanced SERS probes for detection of trace persistent organic pollutants
TL;DR: The results suggested that the interactions between the carbon on the microsphere substrates and the aromatic cores of the target molecules contributed to the facile pre-concentration of the analytes near the Ag-NP surfaces.
Journal ArticleDOI
Use of a fractal-like gold nanostructure in surface-enhanced raman spectroscopy for detection of selected food contaminants.
TL;DR: Results indicate that SERS coupled with fractal-like gold nanostructures holds a great potential as a rapid and ultra-sensitive method for detecting trace amounts of prohibited substances in contaminated food samples.
References
More filters
Book
Absorption and Scattering of Light by Small Particles
TL;DR: In this paper, a Potpourri of Particles is used to describe surface modes in small Particles and the Angular Dependence of Scattering is shown to be a function of the size of the particles.
Book
Computational Electrodynamics: The Finite-Difference Time-Domain Method
TL;DR: This paper presents background history of space-grid time-domain techniques for Maxwell's equations scaling to very large problem sizes defense applications dual-use electromagnetics technology, and the proposed three-dimensional Yee algorithm for solving these equations.
Journal ArticleDOI
Probing Single Molecules and Single Nanoparticles by Surface-Enhanced Raman Scattering
Shuming Nie,Steven R. Emory +1 more
TL;DR: In this article, surface-enhanced Raman scattering was used to detect single molecules and single nanoparticles at room temperature with the use of surface enhanced Raman, and the intrinsic Raman enhancement factors were on the order of 10 14 to 10 15, much larger than the ensemble-averaged values derived from conventional measurements.
Journal ArticleDOI
The Optical Properties of Metal Nanoparticles: The Influence of Size, Shape, and Dielectric Environment
TL;DR: In this paper, the authors describe recent progress in the theory of nanoparticle optical properties, particularly methods for solving Maxwell's equations for light scattering from particles of arbitrary shape in a complex environment.
Related Papers (5)
Probing Single Molecules and Single Nanoparticles by Surface-Enhanced Raman Scattering
Shuming Nie,Steven R. Emory +1 more