Results 21 to 30 of about 110,803 (302)

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

Surface Plasmon Resonance [PDF]

open access: yes, 2020
The sensitivity of an optical measurement is closely related to the light–matter interaction strength. Enhancing the local-field intensity raises the sensor’s sensitivity. The surface plasmon resonance of metal films and the localized surface plasmon resonance of metal nanoparticles enable the subwavelength confinement of the light field, overcoming ...
Frank Vollmer, Deshui Yu
  +4 more sources

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

Demonstration of near infrared gas sensing using gold nanodisks on functionalized silicon [PDF]

open access: yes, 2011
This paper was published in OPTICS EXPRESS and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OE.19.007664.
Ortuño Molinero, Rubén   +19 more
core   +1 more source

Optimization of plasmon–plasmon coupling in photorefractive layered media [PDF]

open access: yes, 2013
In this paper we study grating-induced plasmon–plasmon coupling in photorefractive layered media using a weakcoupling approximation. The method used is applicable to general layered structures that support both plasmonic and optical modes, such as ...
Daly, K.R.   +3 more
core   +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

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

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

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

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