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This work explores the use of Surface-Enhanced Raman Spectroscopy (SERS) combined with artificial neural network (ANN) models to detect and quantify growth hormone (GH) and testosterone (TE) in the blood of Sprague Dawley (SD) rats. SERS…

Stimulated Raman scattering (SRS) microscopy has emerged as a powerful technique for probing the spatiotemporal dynamics of molecular bonds with exceptional sensitivity, resolution, and speed. However, classically, its performance remains…

We theoretically propose a new method in cavity- and surface-enhanced Raman spectroscopy (SERS) with improved temporal resolution in the measurement of stochastic Raman spectral fluctuations. Our approach combines Fourier spectroscopy and…

Optics · Physics 2025-07-02 Colburn Cobb-Bruno , Hendrik Utzat

This research describes the use of surface-enhanced Raman spectroscopy (SERS) substrates based on colloidal silver nanoparticles (AgNPs) produced by laser ablation of silver granules in pure water that are inexpensive, easy to make, and…

Optics · Physics 2023-04-26 A. M. Ondieki , Z. Birech , K. A. Kaduki , P. W. Mwangi

We use surface enhanced Raman spectroscopy (SERS) in studying functionalized Au nanoparticles (AuNPs) when incorporated in active-carbon (A-C) based super-capacitor cells. We observe a resonance-like enhancement in the graphitic line…

Mesoscale and Nanoscale Physics · Physics 2023-09-18 H. Grebel , Y. Zhang

Raman forbidden modes and surface defect related Raman features in SnO_2 nanostructures carry information about disorder and surface defects which strongly influence important technological applications like catalysis and sensing. Due to…

Materials Science · Physics 2015-09-01 Venkataramana Bonu , A. Das , A. K. Sivadasan , A. K. Tyagi , Sandip Dhara

Stimulated Raman scattering (SRS) microscopy is a highly sensitive chemical imaging technique. However, the broader application of SRS has been limited by two key challenges: the reliance on low-noise but bulky solid-state laser sources and…

It is an established understanding that the electromagnetic contribution (the plasmon-mediated enhancement of the laser and scattered local electromagnetic fields) is the main actor in Surface Enhanced Raman Scattering (SERS), with the…

The programmable assembly of DNA strands is a promising tool for building tailored bottom-up nanostructures. Here, we present a plasmonic nanosystem obtained by the base-pairing mediated aggregation of gold nanoparticles (NPs) which are…

Applied Physics · Physics 2019-12-03 D. Caprara , F. Ripanti , A. Capocefalo , A. Sarra , F. Brasili , C. Petrillo , C. Fasolato , P. Postorino

The review is devoted to explanation of SERS in terms of the dipole and quadrupole light-molecule interactions arising in surface fields strongly varying in space in the region of the strongly irregular surface roughness. The main SERS…

Chemical Physics · Physics 2013-10-01 A. M. Polubotko

Surface enhanced Raman scattering (SERS) is optically sensitive and chemically specific to detect single molecule spectroscopic signatures. Facilitating this capability in optically-trapped nanoparticles at low laser power remains a…

A preconcentrating surface-enhanced Raman scattering (SERS) sensor for the analysis of liquid-soaked tissue, tiny liquid droplets and thin liquid films without the necessity to collect the analyte is reported. The SERS sensor is based on a…

Mesoscale and Nanoscale Physics · Physics 2017-11-27 Longjian Xue , Wei Xie , Leonie Driessen , Katrin F. Domke , Yong Wang , Sebastian Schlücker , Stanislav N. Gorb , Martin Steinhart

Conjugated metallic nanoparticles are a promising means to achieve ultrasensitive and multiplexed sensing in intact three-dimensional samples, especially for biological applications, via surface enhanced Raman scattering (SERS). We show…

Plasmonic materials have got wide attention as a potential candidate for light driven catalysis of chemical conversions by harnessing solar energy to reduce the environmental issues generated by fossil fuels-based bulk chemical industries.…

Optics · Physics 2024-08-27 Mahadi Hasan , Mahamadu Tiah Mahama

Accurate design of labelled oligo probes for the detection of miRNA biomarkers by Surface Enhanced Raman Scattering (SERS) may improve the exploitation of the plasmonic enhancement. This work, thus, critically investigates the role of probe…

In this work we identify coherent electron-vibron interactions between near-resonant and non-resonant electronic levels that contribute beyond standard optomechanical models for off-resonant or resonance SERS. By developing an open-system…

Quantum Physics · Physics 2024-01-19 Miguel A. Martínez-García , Diego Martín-Cano

Raman spectroscopic investigations are carried out on one-dimensional nanostructures of InN,such as nanowires and nanobelts synthesized by chemical vapor deposition. In addition to the optical phonons allowed by symmetry; A1, E1 and…

Materials Science · Physics 2009-11-13 Satyaprakash Sahoo , M. S. Hu , C. W. Hsu , C. T. Wu , K. H. Chen , L. C. Chen , A. K. Arora , S. Dhara

Raman scattering, an inelastic scattering mechanism, provides information about molecular excitation energies and can be used to identify chemical compounds. Albeit being a powerful analysis tool, especially for label-free biomedical…

In Surface Enhanced Raman Scattering (SERS) the problem of drawing molecules to the places where surface plasmon resonance enhancements will produce signals is one of the most basic ones, and the initial obstacle to every application of the…

Chemical Physics · Physics 2008-11-03 Paul D. Lacharmoise , Eric C. Le Ru , Pablo G. Etchegoin

Ag nanorod arrays/dielectrics/mirror-structured multilayer thin-film are well known, highly sensitive surface-enhanced Raman scattering (SERS) substrates that enhance the Raman scattering cross-section by the interference of light. However,…

Applied Physics · Physics 2020-10-08 Samir Kumar , Misa Kanagawa , Kyoko Namura , Takao Fukuoka , Motofumi Suzuki
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