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
Gold coatings on polymer laser induced periodic surface structures: assessment as substrates for surface-enhanced Raman scattering.
Esther Rebollar,Mikel Sanz,Susana Pérez,Margarita Hernández,Ignacio Martín-Fabiani,Daniel R. Rueda,Tiberio A. Ezquerra,Concepción Domingo,Marta Castillejo +8 more
TL;DR: Analysis by atomic force microscopy and grazing incident small angle X-ray scattering showed that gold coating preserved the LIPSS relief and the SERS signal is substantially larger than that observed for a gold-coated flat substrate.
Journal ArticleDOI
Preparation of silver decorated silica nanocomposite rods for catalytic and surface-enhanced Raman scattering applications
TL;DR: In this paper, a straightforward approach for the decoration of Ag nanoparticles onto the surface of mesoporous silica nanorods (denoted as SiO2@Ag nanocomposite rods), in which polyvinylpyrrolidone (PVP) serves as both a reductant and stabilizer.
Journal ArticleDOI
Hybrid Nanoplasmonic Porous Biomaterial Scaffold for Liquid Biopsy Diagnostics Using Extracellular Vesicles
Tatu Rojalin,Hanna J. Koster,Juanjuan Liu,Rachel R. Mizenko,Di Tran,Sebastian Wachsmann-Hogiu,Randy P. Carney +6 more
TL;DR: A major loss of sensitivity for ovarian and endometrial cancer following enzymatic cleavage of EVs’ extraluminal domain is observed, suggesting its critical significance for diagnostic platforms.
Patent
Methods for production of silver nanostructures
TL;DR: Methods for producing silver nanostructures with improved dimensional control, yield, purity, monodispersity, and scale of synthesis are described in this paper. But these methods do not address the problem of scalability.
Journal ArticleDOI
Self-assembly of Au nano-islands with tuneable organized disorder for highly sensitive SERS
TL;DR: In this paper, a thermophoretically driven Au aerosol deposition process is used for the self-assembly of thin films consisting of plasmonic nano-islands (NIs) with a controllable and highly reproducible degree of disorder.
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