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Assessing Plasmonic Nanoprobes in Electromagnetic Field Enhancement for SERS Detection of Biomarkers

open access: yesSensors, 2021
The exploration of the plasmonic field enhancement of nanoprobes consisting of gold and magnetic core@gold shell nanoparticles has found increasing application for the development of surface-enhanced Raman spectroscopy (SERS)-based biosensors.
Han-Wen Cheng   +7 more
doaj   +3 more sources

Electromagnetic Field Enhancement of Nanostructured TiN Electrodes Probed with Surface-Enhanced Raman Spectroscopy

open access: yesSensors, 2022
We present a facile approach for the determination of the electromagnetic field enhancement of nanostructured TiN electrodes. As model system, TiN with partially collapsed nanotube structure obtained from nitridation of TiO2 nanotube arrays was used ...
Ibrahim Halil Öner   +4 more
doaj   +3 more sources

Dual-physics programmable metasurfaces for dynamical controls of acoustics and electromagnetics [PDF]

open access: yesNature Communications
Programmable metasurfaces bring new opportunities for modern acoustic and electromagnetic technologies by dynamically tailoring wave-matter interactions at subwavelength scales.
Zheng Zhang   +7 more
doaj   +2 more sources

Coupling configurations between extended surface electromagnetic waves and localized surface plasmons for ultrahigh field enhancement

open access: yesNanophotonics, 2018
Local enhancement of electromagnetic (EM) fields near dielectric and metallic surfaces is usually associated with the existence of a confined EM wave at least in one direction. This phenomenon finds applications in enhancing optical spectroscopic signals,
Abdulhalim Ibrahim
doaj   +2 more sources

Three-dimensional plasmonic nanopores for DNA-PAINT and dual-material Au/Si architectures [PDF]

open access: yesJournal of Nanobiotechnology
Plasmonic nanopores combine nanofluidic confinement with electromagnetic field enhancement, enabling optical interrogation of single molecules in sub-wavelength volumes. Building on our previously developed three-dimensional dielectric nanopore platform,
German Lanzavecchia   +8 more
doaj   +2 more sources

Excitation Conditions for Surface-Enhanced Hyper Raman Scattering With Biocompatible Gold Nanosubstrates

open access: yesFrontiers in Chemistry, 2021
Surface enhanced hyper Raman scattering (SEHRS) can provide many advantages to probing of biological samples due to unique surface sensitivity and vibrational information complementary to surface-enhanced Raman scattering (SERS).
Arpad Dusa   +2 more
doaj   +1 more source

Dual Plasmon Resonances and Tunable Electric Field in Structure-Adjustable Au Nanoflowers for Improved SERS and Photocatalysis

open access: yesNanomaterials, 2021
Flower-like metallic nanocrystals have shown great potential in the fields of nanophononics and energy conversion owing to their unique optical properties and particular structures.
Yi-Xin Zhao   +7 more
doaj   +1 more source

Modeling and Theoretical Analysis of the SERS Enhancement Factor Considering the Electronic Structural Energy

open access: yesIEEE Access, 2021
The enhancement factor is one of the key parameters characterizing the phenomenon of surface-enhanced Raman scattering. At present, this parameter is described by an empirical formula or a certain single physical mechanism instead of a unified model of ...
Xu Yang   +5 more
doaj   +1 more source

Controllable Enhancement of Evanescent and Transmitted Waves by a Plasma Sphere

open access: yesFrontiers in Physics, 2022
In this study, we present that the plasma sphere can focus and enhance the evanescent and transmitted waves. Electromagnetic waves propagating in a plasma sphere with a positive or negative permittivity, which leads to the enhancement of transmitted and ...
Wenxuan Shi, Bin Yuan, Junfa Mao
doaj   +1 more source

A Review on Surface-Enhanced Raman Scattering

open access: yesBiosensors, 2019
Surface-enhanced Raman scattering (SERS) has become a powerful tool in chemical, material and life sciences, owing to its intrinsic features (i.e., fingerprint recognition capabilities and high sensitivity) and to the technological advancements that have
Roberto Pilot   +5 more
doaj   +1 more source

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