Themed collection Surface-enhanced spectroscopies

This themed issue presents a collection of articles on surface-enhanced spectroscopies.

Surface-enhanced IR absorption spectroscopy coupled with an electrochemical system enables the potassium-induced specific structural change of the potassium channel.

A perspective of recent developments on nanostructures composed of hybrid materials for SERS applications, including Chemical detection of analytes.

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.

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.

Thermally robust SERS probes enable the study of coking kinetics on the nickel surface at early stages and at the Ni–YSZ interface.

By applying SERS, we recorded spectral features from functional molecules bound to the nanotube surface, which are otherwise very difficult to see.

Direct, label-free detection of DNA hybridization using EC-SERS.

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.

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.

In this work we present an integrated biosensor that enables FTIR (Fourier Transform-Infrared) detection of analytes contained in diluted solutions.

TERS was used to investigate the graphene-like platelets in gap mode geometry using radially and linearly polarized excitation.

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.

Surface dynamics of selective molecular subgroups in DNA is about two times faster than the solution dynamics of nucleic acids.

DLC and thermally annealed diamond thin films as SERS substrates without any metal nanostructures on their surfaces.

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.

Surface enhanced Raman spectroscopy is explained by considering interactions of molecular dipoles with their image charges formed in metal substrates.

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.

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.

Femtosecond-scanning near-field optical microscopy resolves the location-correlated second harmonic generation and two-photon photoluminescence from single nanoparticles with 30 nm resolution.

Monodispersed and biocompatible SERS tags are conveniently developed by one-pot synthesis and applied for cancer cell targeting and SERS imaging.

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).

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 together with the conductance measurements.

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.

Simultaneous use of SERS and impedance spectroscopy allows determining electromagnetic field enhancement factors of electrode surfaces with random nanostructures.

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.

Electromagnetic enhancement of CdSe quantum dots in surface and tip-enhanced Raman scattering with improved sensitivity.

The knowledge of the near- and far-field spectral distribution helps in choosing the most performing metal nanostructure for advanced applications.

Densely arranged two-dimensional assemblies of larger plasmonic Au(core)–Ag(shell) nanospheres promising for the development of highly sensitive SERS sensor platforms.

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.

We have used the luminescence from a gold tip to study the optical near field properties of a gold surface.

SEIRA signals have a Fano-type line shape and the enhancement maximum is red shifted compared to the plasmonic far-field resonance.

A gold-coated butterfly wing is used as a SERS substrate to diagnose malaria based on intense scattering from hemozoin aggregates.

Spherical metal nanoparticle colloids prepared at low centrifugation speed show that the monomers are not SERS-active at the ensemble level.

A facile and convenient strategy to detect polycyclic aromatic hydrocarbons is presented, using graphene–Ag nanoparticle hybrids as a surface-enhanced Raman scattering substrate.

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.

The formation of pressure-enhanced C–H⋯nano-TiO₂ interactions around the C–H groups was observed.

Regiospecific star-sphere assemblies show enhanced SERS intensity and electric field at the interparticle junction as well as at locations between the nanostar tips.

Field enhancement by a single gold nanorod enables μM dye solution FCS (red). The solution itself gives no signal (green).