Results 1 to 10 of about 100,882 (109)

Over-coupled resonator for broadband surface enhanced infrared absorption (SEIRA) [PDF]

open access: yesNature Communications, 2023
Detection of molecules is a key issue for many applications. Surface enhanced infrared absorption (SEIRA) uses arrays of resonant nanoantennas with good quality factors which can be used to locally enhance the illumination of molecules. The technique has
Laura Paggi   +8 more
doaj   +2 more sources

Honeycomb-like aluminum antennas for surface-enhanced infrared absorption sensing [PDF]

open access: yesNanophotonics, 2023
Surface-enhanced infrared absorption (SEIRA) spectroscopy is a competent method to detect trace quantity of molecules and even protein conformational flexibility by enhancing their vibrational modes.
Najem Melissa   +5 more
doaj   +2 more sources

Probing Denaturation of Protein A via Surface-Enhanced Infrared Absorption Spectroscopy [PDF]

open access: yesBiosensors, 2022
We apply surface-enhanced infrared absorption (SEIRA) spectroscopy to monitor the denaturation process of a surface-bound protein A monolayer. Our proposed platform relies on a plasmonic metasurface comprising different spatial subregions (“pixels”) that
Valentina Di Meo   +7 more
doaj   +2 more sources

Detection of glutathione in dairy products based on surface-enhanced infrared absorption spectroscopy of silver nanoparticles [PDF]

open access: yesFrontiers in Nutrition, 2022
In this paper, silver nanoparticles (AgNPs) were prepared as enhanced substrates for the detection of glutathione in dairy products by polyol reduction of silver nitrate.
Wenliang Qi   +5 more
doaj   +2 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   +2 more sources

Research Progress in Surface-Enhanced Infrared Absorption Spectroscopy: From Performance Optimization, Sensing Applications, to System Integration [PDF]

open access: yesNanomaterials, 2023
Infrared absorption spectroscopy is an effective tool for the detection and identification of molecules. However, its application is limited by the low infrared absorption cross-section of the molecule, resulting in low sensitivity and a poor signal-to ...
Dongxiao Li   +3 more
doaj   +2 more sources

Infrared metamaterial for surface-enhanced infrared absorption spectroscopy: pushing the frontier of ultrasensitive on-chip sensing

open access: yesInternational Journal of Optomechatronics, 2021
Surface-enhanced infrared absorption (SEIRA) spectroscopy is a powerful technique that overcomes the issue of low molecular absorption cross-sections in infrared spectroscopy.
Hong Zhou   +3 more
doaj   +2 more sources

All-Semiconductor Plasmonic Resonator for Surface-Enhanced Infrared Absorption Spectroscopy [PDF]

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   +2 more sources

Broadband surface enhanced infrared absorption with multiple Fano resonance by metallic oblique-wire-bundle metamaterial absorbers [PDF]

open access: yesScientific Reports
Higher sensitivity with specific recognition of a sensor could ease the burden of sample purification or labelling procedure for specific testing and detection and there appear two methods including surface enhanced infrared absorption (SEIRA) and ...
Hsueh-Shun Lee   +4 more
doaj   +2 more sources

Large-area sensors using Cd(Zn)O plasmonic nanoparticles for surface-enhanced infrared absorption [PDF]

open access: yesNanophotonics
Surface-enhanced infrared absorption (SEIRA) spectroscopy holds significant promise for chemical detection as it enables direct identification of distinct vibrational fingerprints of molecules.
Ibañez-Romero Pablo   +7 more
doaj   +2 more sources

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