This themed issue presents a collection of articles on surface-enhanced spectroscopies.
Surface-enhanced IR absorption spectroscopy of the KcsA potassium channel upon application of an electric field
Surface-enhanced IR absorption spectroscopy coupled with an electrochemical system enables the potassium-induced specific structural change of the potassium channel.
Hybrid nanostructures for SERS: materials development and chemical detection
A perspective of recent developments on nanostructures composed of hybrid materials for SERS applications, including Chemical detection of analytes.
In situ Raman and surface-enhanced Raman spectroscopy on working electrodes: spectroelectrochemical characterization of water oxidation electrocatalysts
This perspective article gives an overview of the current developments regarding the use of in situ Raman and surface-enhanced Raman spectroscopy on working electrodes for probing the fate of molecular and heterogeneous catalysts during electrochemical water oxidation.
Prospects for plasmonic hot spots in single molecule SERS towards the chemical imaging of live cells
Single molecule surface enhanced Raman scattering (SM-SERS) is a highly local effect occurring at sharp edges, interparticle junctions and crevices or other geometries with a sharp nanoroughness of plasmonic nanostructures (“hot spots”) for an analyte detection.
An operando surface enhanced Raman spectroscopy (SERS) study of carbon deposition on SOFC anodes
Thermally robust SERS probes enable the study of coking kinetics on the nickel surface at early stages and at the Ni–YSZ interface.
Surface-enhanced Raman spectroscopy characterisation of functionalised multi-walled carbon nanotubes
By applying SERS, we recorded spectral features from functional molecules bound to the nanotube surface, which are otherwise very difficult to see.
Development of an electrochemical surface-enhanced Raman spectroscopy (EC-SERS) aptasensor for direct detection of DNA hybridization
Direct, label-free detection of DNA hybridization using EC-SERS.
The adsorption of thiophenol on gold – a spectroelectrochemical study
The adsorbate formed by adsorption of thiophenol on a polycrystalline gold electrode and brought into contact with aqueous solutions of 1 M HClO4 and 0.1 M KClO4 has been studied using cyclic voltammetry and surface-enhanced Raman spectroscopy.
Enhancement and extinction effects in surface-enhanced stimulated Raman spectroscopy
We address the optical physics of surface-enhanced stimulated Raman spectroscopy (SESRS) from the microscopic to macroscopic scales to provide experimental design criteria in colloidal-suspension SESRS.
An integrated superhydrophobic-plasmonic biosensor for mid-infrared protein detection at the femtomole level
In this work we present an integrated biosensor that enables FTIR (Fourier Transform-Infrared) detection of analytes contained in diluted solutions.
Tip-enhanced Raman spectroscopy of graphene-like and graphitic platelets on ultraflat gold nanoplates
TERS was used to investigate the graphene-like platelets in gap mode geometry using radially and linearly polarized excitation.
High performance surface-enhanced Raman scattering from molecular imprinting polymer capsulated silver spheres
Driven by the ultrasensitivity of the surface-enhanced Raman scattering (SERS) technique and the directive selection of molecular imprinting polymers (MIPs), core–shell silver-molecularly imprinted polymer (Ag@MIP) hybrid structure was synthesized to serve as a novel SERS platform.
Subpicosecond surface dynamics in genomic DNA from in vitro-grown plant species: a SERS assessment
Surface dynamics of selective molecular subgroups in DNA is about two times faster than the solution dynamics of nucleic acids.
SERS activity of Ag decorated nanodiamond and nano-β-SiC, diamond-like-carbon and thermally annealed diamond thin film surfaces
DLC and thermally annealed diamond thin films as SERS substrates without any metal nanostructures on their surfaces.
Waveguide-coupled directional Raman radiation for surface analysis
Guided-mode-excited and guided-mode-coupled directional Raman spectroscopy can be used to obtain an ultrahigh depth resolution and thus an excellent surface selectivity.
Image molecular dipoles in surface enhanced Raman scattering
Surface enhanced Raman spectroscopy is explained by considering interactions of molecular dipoles with their image charges formed in metal substrates.
Surface enhanced vibrational spectroscopy and first-principles study of L-cysteine adsorption on noble trimetallic Au/Pt@Rh clusters
First-principles study of L-cysteine adsorption on noble trimetallic Au/Pt@Rh clusters has been discussed in the light of SEIRS and theoretical surface complex calculation.
Critical assessment of enhancement factor measurements in surface-enhanced Raman scattering on different substrates
The SERS enhancement factor (SERS-EF) is one of the most important parameters that characterizes the ability of a given substrate to enhance the Raman signal for SERS applications. The comparison between dynamic and static substrates, however, should not be performed in sense of SERS-EF.
Nonlinear optical imaging of single plasmonic nanoparticles with 30 nm resolution
Femtosecond-scanning near-field optical microscopy resolves the location-correlated second harmonic generation and two-photon photoluminescence from single nanoparticles with 30 nm resolution.
Synthesis of size-tunable chitosan encapsulated gold–silver nanoflowers and their application in SERS imaging of living cells
Monodispersed and biocompatible SERS tags are conveniently developed by one-pot synthesis and applied for cancer cell targeting and SERS imaging.
Preparation of a silver nanoparticle-based dual-functional sensor using a complexation–reduction method
A dual-functional sensor based on silver nanoparticles was synthesized by a two-stage procedure consisting of a low-temperature chitosan–Ag+ complexation followed by a high-temperature reduction of the complex to form chitosan-capped silver nanoparticles (CS-capped Ag NPs).
Droplet based microfluidics: spectroscopic characterization of levofloxacin and its SERS detection
The determination of the absorption behavior of levofloxacin (levaquin) on the surface of silver nanoparticles and its determination in aqueous solution by droplet based microfluidics combined with surface enhanced Raman spectroscopy.
Surface enhanced Raman scattering of a single molecular junction
Surface enhanced Raman scattering of a single molecular junction together with the conductance measurements.
Improved Raman and photoluminescence sensitivity achieved using bifunctional Ag@SiO2 nanocubes
Surface-enhanced Raman scattering (SERS) and metal-enhanced photoluminescence (MEPL) responses can be greatly improved by introducing a thin coating of silica (SiO2) on silver nanocubes.
Calculating average surface enhancement factors of randomly nanostructured electrodes by a combination of SERS and impedance spectroscopy
Simultaneous use of SERS and impedance spectroscopy allows determining electromagnetic field enhancement factors of electrode surfaces with random nanostructures.
Tailoring plasmonic properties of gold nanohole arrays for surface-enhanced Raman scattering
The wide plasmonic tuning range of nanotriangle and nanohole array patterns fabricated by nanosphere lithography makes them promising in surface-enhanced Raman scattering (SERS) sensors.
Surface- and tip-enhanced resonant Raman scattering from CdSe nanocrystals
Electromagnetic enhancement of CdSe quantum dots in surface and tip-enhanced Raman scattering with improved sensitivity.
Far- and near-field properties of gold nanoshells studied by photoacoustic and surface-enhanced Raman spectroscopies
The knowledge of the near- and far-field spectral distribution helps in choosing the most performing metal nanostructure for advanced applications.
Particle size dependence of the surface-enhanced Raman scattering properties of densely arranged two-dimensional assemblies of Au(core)–Ag(shell) nanospheres
Densely arranged two-dimensional assemblies of larger plasmonic Au(core)–Ag(shell) nanospheres promising for the development of highly sensitive SERS sensor platforms.
Different behaviour of molecules in dark SERS state on colloidal Ag nanoparticles estimated by truncated power law analysis of blinking SERS
Power law analysis of blinking SERS can estimate the behaviour of thiacyanine in dark SERS state on the Ag surface with a large or small amount of citrate anions.
A near field optical image of a gold surface: a luminescence study
We have used the luminescence from a gold tip to study the optical near field properties of a gold surface.
Impact of the plasmonic near- and far-field resonance-energy shift on the enhancement of infrared vibrational signals
SEIRA signals have a Fano-type line shape and the enhancement maximum is red shifted compared to the plasmonic far-field resonance.
Bio-sensing with butterfly wings: naturally occurring nano-structures for SERS-based malaria parasite detection
A gold-coated butterfly wing is used as a SERS substrate to diagnose malaria based on intense scattering from hemozoin aggregates.
Gold and silver nanoparticle monomers are non-SERS-active: a negative experimental study with silica-encapsulated Raman-reporter-coated metal colloids
Spherical metal nanoparticle colloids prepared at low centrifugation speed show that the monomers are not SERS-active at the ensemble level.
CTAB micelles assisted rGO–AgNP hybrids for SERS detection of polycyclic aromatic hydrocarbons
A facile and convenient strategy to detect polycyclic aromatic hydrocarbons is presented, using graphene–Ag nanoparticle hybrids as a surface-enhanced Raman scattering substrate.
β-Cyclodextrin coated SiO2@Au@Ag core–shell nanoparticles for SERS detection of PCBs
A new type of surface-enhanced Raman scattering (SERS) substrate consisting of β-cyclodextrin (β-CD) coated SiO2@Au@Ag nanoparticles (SiO2@Au@Ag@CD NPs) has been achieved.
Pressure-enhanced surface interactions between nano-TiO2 and ionic liquid mixtures probed by high pressure IR spectroscopy
The formation of pressure-enhanced C–H⋯nano-TiO2 interactions around the C–H groups was observed.
Plasmonic properties of regiospecific core–satellite assemblies of gold nanostars and nanospheres
Regiospecific star-sphere assemblies show enhanced SERS intensity and electric field at the interparticle junction as well as at locations between the nanostar tips.
Enhanced-fluorescence correlation spectroscopy at micro-molar dye concentration around a single gold nanorod
Field enhancement by a single gold nanorod enables μM dye solution FCS (red). The solution itself gives no signal (green).
About this collection
The combination of molecular spectroscopies based on infrared absorption, Raman scattering, and fluorescence emission with metal nanostructures generating very high locally increased electric fields upon resonant excitation, has led to novel types of spectroscopies with promising technological applications. There has been recent progress in in many different fields, but there is an urgent need for bringing together scientists from these various disciplines (physics, chemistry, materials science, engineering, life sciences) together. This themed issue aims to cover the full range of topics from fundamentals to methods and applications bringing together leading scientists from all of the involved fields.
The Guest Editors for this themed collection are Rudolf Holze (Chemnitz University of Technology, Germany) and Sebastian Schlücker (University of Duisburg-Essen, Germany).