Results 21 to 30 of about 93,296 (302)

Ellipsometric surface plasmon resonance

open access: yesJournal of Biomedical Optics, 2009
We develop a new multifunctional optical biochip system that integrates an ellipsometer with a surface plasmon resonance (SPR) feature. This newly developed biochip biosensor, which we call ESPR for an ellipsometric SPR, provides us with a system to retrieve detailed information such as the optical properties of immobilized biomolecular monolayers ...
Wei-Liang, Hsu   +2 more
openaire   +2 more sources

Au-Ag Gradient Alloy Nanoparticles with Extended Surface Plasmon Resonance Wavelength: Synthesis via Microreaction

open access: yesNano Biomedicine and Engineering, 2011
Au-Ag gradient alloy nanoparticles were directly synthesized in a microreaction system with their surface plasmon resonance been facilely adjusted. The surface plasmon resonance wavelength was red-shifted through increasing the raw ratio of Au3+:Ag ...
Li Sun   +3 more
doaj   +1 more source

Noble Metal-Assisted Surface Plasmon Resonance Immunosensors

open access: yesSensors, 2020
For the early diagnosis of several diseases, various biomarkers have been discovered and utilized through the measurement of concentrations in body fluids such as blood, urine, and saliva. The most representative analytical method for biomarker detection
Jin-Ha Choi   +3 more
doaj   +1 more source

Research Advances on Fiber-Optic SPR Sensors with Temperature Self-Compensation

open access: yesSensors, 2023
The fiber-optic surface plasmon resonance sensor has very promising applications in environmental monitoring, biochemical sensing, and medical diagnosis, due to the superiority of high sensitivity and novel label-free microstructure.
Hongxia Zhao   +4 more
doaj   +1 more source

Gold nano-ripple structure with potential for bio molecular sensing applications

open access: yesSensing and Bio-Sensing Research, 2016
We introduce a simple and cost-effective scheme for bio-sensing using nano-ripple structures. One dimensional metallic nano-ripple structures formed by gas cluster ion beam irradiation have shown polarization of light as well as localized surface plasmon
Iram Saleem, Wei-Kan Chu
doaj   +1 more source

Enhanced Sensitivity of Surface Plasmon Resonance Sensor Based on Bilayers of Silver-Barium Titanate [PDF]

open access: yesЖурнал нано- та електронної фізики, 2016
Surface plasmon resonance (SPR) sensors have been widely adopted with various fields such as physics, chemistry, biology and biochemistry. SPR sensor has many advantages like the less number of sensing samples required, freedom of electromagnetic ...
S. Fouad   +3 more
doaj   +1 more source

Plasmonic Nanostructure Biosensors: A Review

open access: yesSensors, 2023
Plasmonic nanostructure biosensors based on metal are a powerful tool in the biosensing field. Surface plasmon resonance (SPR) can be classified into localized surface plasmon resonance (LSPR) and propagating surface plasmon polariton (PSPP), based on ...
Huimin Wang   +7 more
doaj   +1 more source

Plasmon resonance studies of iron coated gold films with and without an applied magnetic field

open access: yesAIP Advances, 2017
Surface plasmon excitations can result from the absorption of light incident on gold films. Adding a ferromagnetic metal, in our case iron, allows the surface plasmon resonance peak energy to be manipulated not only by the free electrons present in ...
K. Podolak   +4 more
doaj   +1 more source

Au-Graphene Hybrid Plasmonic Nanostructure Sensor Based on Intensity Shift

open access: yesSensors, 2017
Integrating plasmonic materials, like gold with a two-dimensional material (e.g., graphene) enhances the light-material interaction and, hence, plasmonic properties of the metallic nanostructure.
Raed Alharbi   +2 more
doaj   +1 more source

Improved Magneto-Optic Surface Plasmon Resonance Biosensors

open access: yesPhotonics, 2018
The magneto-optic (MO) characteristics and sensing performance of noble metal (Ag, Au, Cu) or transition metal (Fe, Ni, Co) single layers and Ag/Co or Au/Co bilayers have been studied and compared in both the standard plasmonic and MO plasmonic ...
Conrad Rizal, Simone Pisana, Ivan Hrvoic
doaj   +1 more source

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