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
SERS-Active Ag Nanoparticles on Porous Silicon and PDMS Substrates: A Comparative Study of Uniformity and Raman Efficiency
Chiara Novara,Silvia Dalla Marta,Alessandro Virga,Andrea Lamberti,Angelo Angelini,Alessandro Chiadò,Paola Rivolo,Francesco Geobaldo,Valter Sergo,Alois Bonifacio,Fabrizio Giorgis +10 more
TL;DR: In this paper, surface-enhanced Raman scattering (SERS) was applied on porous silicon and polydimethylsiloxane (PDMS) nanostructures.
Journal ArticleDOI
Coupling reaction-based ultrasensitive detection of phenolic estrogens using surface-enhanced resonance Raman scattering.
TL;DR: This work demonstrates a simple and rapid approach to detect trace amounts of phenolic estrogen based on surface-enhanced resonance Raman scattering (SERRS), which is universal and highly selective, not only for phenolic estrogens but also for other phenolic molecules, even in complex systems.
Journal ArticleDOI
Polydopamine-Stabilized Aluminum Nanocrystals: Aqueous Stability and Benzo[a]pyrene Detection
David Renard,Shu Tian,Arash Ahmadivand,Christopher J. DeSantis,Benjamin D. Clark,Peter Nordlander,Naomi J. Halas +6 more
TL;DR: Polydopamine functionalization provides a molecular capture layer that enables the capture of polycyclic aromatic hydrocarbon pollutants in H2O samples and their detection by surface-enhanced Raman spectroscopy, when polydopamines-stabilized Al nanocrystal aggregates are used as substrates.
Journal ArticleDOI
Aligned silver nanorod arrays for surface-enhanced Raman scattering.
TL;DR: These arrays were evaluated as potential surface-enhanced Raman spectroscopy (SERS) substrates using trans-bis(4-pyridyl)ethylene molecules and the SERS signals were observed to be enhanced with the increase of the aspect ratio of the Ag nanorod.
Journal ArticleDOI
Metal Nanoparticle-Catalyzed Reduction Using Borohydride in Aqueous Media: A Kinetic Analysis of the Surface Reaction by Microfluidic SERS
TL;DR: This study investigated the platinum-catalyzed reduction of 4-nitrothiophenol to 4-aminothyphenol in aqueous sodium borohydride solution as a prominent model reaction, by using label-free SERS monitoring in a microfluidic reactor and revealed a strong pH dependence.
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