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
Highly ordered tailored three-dimensional hierarchical nano/microporous gold–carbon architectures
Sirilak Sattayasamitsathit,Aoife M. O'Mahony,Xiaoyin Xiao,Susan M. Brozik,Cody M. Washburn,David R. Wheeler,Wei Gao,Shelley D. Minteer,Jennifer N. Cha,D. Bruce Burckel,Ronen Polsky,Joseph Wang +11 more
TL;DR: In this paper, the preparation and characterization of three-dimensional hierarchical nano/microporous structures, consisting of monolithic nanoporous gold or silver films formed on highly ordered 3D microporous carbon supports, are described.
Journal ArticleDOI
Building High‐Density Au–Ag Islands on Au Nanocrystals by Partial Surface Passivation
Journal ArticleDOI
Growth behaviour and plasmon resonance properties of photocatalytically deposited Cu nanoparticles
TL;DR: Cu nanoparticles were deposited on UV-irradiated TiO(2) in an aqueous solution containing Cu(CH(3)COO)(2) and ethanol by a photocatalytic reaction to exhibit an extinction peak due to localized surface plasmon resonance at around 600 nm initially.
Journal ArticleDOI
Low-Power Photothermal Probing of Single Plasmonic Nanostructures with Nanomechanical String Resonators
TL;DR: In this article, the authors demonstrate the direct photothermal probing and mapping of single plasmonic nanostructures via the temperature-induced detuning of nanomechanical string resonators.
Journal ArticleDOI
Synergy between graphene and Au nanoparticles (heterojunction) towards quenching, improving Raman signal, and UV light sensing.
Maria Celeste Dalfovo,Gabriela I. Lacconi,Monica Moreno,Marta C. Yappert,Gamini Sumanasekera,Roberto Carlos Salvarezza,Francisco J. Ibañez +6 more
TL;DR: It is demonstrated that G quenches more than 90% of the combined photoluminescence and fluorescence of Au NPs and Rhodamine B (RhB), respectively, which enables quantitative analysis of SERS of RhB on various substrates including as-transferred graphene, oxidized graphene, and the heterojunction.
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