Results 11 to 20 of about 606 (208)

Surface enhanced infrared absorption mechanism and modification of the plasmonic response

open access: yesJPhys Photonics
Surface enhanced infrared absorption (SEIRA) is an experimental method where trace amount of a compound can be detected with high sensibility. This high detection sensibility is the result of the interaction of the molecules with a localized plasmon ...
Tanguy Colleu   +6 more
doaj   +4 more sources

Surface-enhanced infrared absorption studies towards a new optical biosensor [PDF]

open access: yesBeilstein Journal of Nanotechnology, 2016
Reflectometric interference spectroscopy (RIfS), which is well-established in the visual regime, measures the optical thickness change of a sensitive layer caused, e.g., by binding an analyte.
Lothar Leidner   +3 more
doaj   +3 more sources

Surface-enhanced infrared absorption [PDF]

open access: yesSCIENTIA SINICA Physica, Mechanica & Astronomica, 2019
Infrared spectroscopy is a powerful tool for the detection and identification of molecules. However, its application is limited by the low infrared absorption cross-sections of molecules. Localized surface plasmon resonances in metal and highly-doped semiconductor nanomaterials can produce large localized electromagnetic field enhancements.
Han ZHANG, JianFang WANG, NanNan LI
openaire   +1 more source

Biochemical applications of surface-enhanced infrared absorption spectroscopy [PDF]

open access: yesAnalytical and Bioanalytical Chemistry, 2007
An overview is presented on the application of surface-enhanced infrared absorption (SEIRA) spectroscopy to biochemical problems. Use of SEIRA results in high surface sensitivity by enhancing the signal of the adsorbed molecule by approximately two orders of magnitude and has the potential to enable new studies, from fundamental aspects to applied ...
Ataka, Kenichi, Heberle, Joachim
openaire   +2 more sources

All-Semiconductor Plasmonic Resonator for Surface-Enhanced Infrared Absorption Spectroscopy

open access: yesMicromachines, 2017
Infrared absorption spectroscopy remains a challenge due to the weak light-matter interaction between micron-wavelengthed infrared light and nano-sized molecules.
Wei Wei   +5 more
doaj   +1 more source

Sol–Gel Ceramics for SEIRAS and SERS Substrates

open access: yesCrystals, 2021
Surface Enhanced Infrared Absorption Spectroscopy and Surface Enhanced Raman Spectroscopy are analytic techniques that have not been massively adopted since there are issues that still need to be solved with regard to the nature of the signal enhancement
Jesús Alberto Garibay’Alvarado   +1 more
doaj   +1 more source

Nanostructure-enhanced infrared spectroscopy

open access: yesNanophotonics, 2021
While infrared spectroscopy is a powerful technique that provides molecular information such as chemical constituents and chemical structures of analytes, it suffers from low absorption cross-section resulting in low sensitivity and poor signal-to-noise ...
Tanaka Takuo, Yano Taka-aki, Kato Ryo
doaj   +1 more source

Surface Enhanced Infrared Absorption Studies of SiO2–TiO2–Ag Nanofibers: Effect of Silver Electrodeposition Time on the Amplification of Signals

open access: yesCrystals, 2021
Surface Enhanced on Infrared Absorption (SEIRAS) and Raman Spectroscopy (SERS) are nondestructive analytic techniques used to detect low concentrations and recognize the fingerprints of molecules.
Blanca Selenis Cabello-Ribota   +2 more
doaj   +1 more source

Mid-infrared chalcogenide slot waveguide plasmonic resonator sensor embedded with Au nanorods for surface-enhanced infrared absorption spectroscopy

open access: yesResults in Physics, 2022
The problem of a traditional waveguide plasmonic resonator sensor is that part of the near-field intensity enhanced area is confined in the waveguide dielectric layer, which decreases the interaction effect between light and analyte.
Mingquan Pi   +12 more
doaj   +1 more source

Enhanced Vibrational Spectroscopies as Tools for Small Molecule Biosensing

open access: yesSensors, 2015
In this short summary we summarize some of the latest developments in vibrational spectroscopic tools applied for the sensing of (small) molecules and biomolecules in a label-free mode of operation. We first introduce various concepts for the enhancement
Souhir Boujday   +3 more
doaj   +1 more source

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