Results 1 to 10 of about 22,772 (255)

Clinical Applications of Visual Plasmonic Colorimetric Sensing [PDF]

open access: yesSensors, 2020
Colorimetric analysis has become of great importance in recent years to improve the operationalization of plasmonic-based biosensors. The unique properties of nanomaterials have enabled the development of a variety of plasmonics applications on the basis
Elba Mauriz
doaj   +6 more sources

Plasmonic Metamaterial Ag Nanostructures on a Mirror for Colorimetric Sensing [PDF]

open access: yesNanomaterials, 2023
In this study, we demonstrate the localized surface plasmon resonance (LSPR) in the visible range by using nanostructures on mirrors. The nanohemisphere-on-mirror (NHoM) structure is based on random nanoparticles that were obtained by heat-treating silver thin films and does not require any top-down nanofabrication processes.
Kenji Wada   +2 more
exaly   +5 more sources

Colorimetric Sensing of the Peroxide Number of Milk Powder Using CsPbBr3 Perovskite Nanocrystals [PDF]

open access: yesBiosensors, 2023
In this study, a wavelength-shift-based colorimetric sensing approach for the peroxide number of milk powder using CsPbBr3 perovskite nanocrystals (CsPbBr3 NCs) has been developed. Through the fat extraction, REDOX reactions and halogen exchange, as well
Li Zhang   +5 more
doaj   +2 more sources

Recent developments in the colorimetric sensing of biological molecules using gold nanoparticles-based probes

open access: yesTalanta Open, 2022
The localized surface plasmon resonance (LSPR) phenomenon of the noble metal nanoparticles is responsible for their strongly coloured colloidal solutions.
Devendra P.S. Negi
doaj   +3 more sources

Chromogenic Mechanisms of Colorimetric Sensors Based on Gold Nanoparticles

open access: yesBiosensors, 2023
The colorimetric signal readout method is widely used in visualized analyses for its advantages, including visualization of test results, simple and fast operations, low detection cost and fast response time.
Yanyun Cui, Jun Zhao, Huidan Li
doaj   +1 more source

Plasmonic Sensing of Glucose Based on Gold–Silver Core–Shell Nanoparticles

open access: yesChemosensors, 2022
Developing a simple and convenient approach for glucose sensing is crucially important in disease diagnosis and health monitoring. In this work, a glucose sensor based on plasmonic nanostructures was developed using gold–silver core–shell nanoparticles ...
Junjie Wang   +6 more
doaj   +1 more source

Design of highly perceptible dual-resonance all-dielectric metasurface colorimetric sensor via deep neural networks

open access: yesScientific Reports, 2022
Colorimetric sensing, which provides effective detection of bio-molecular signals with one’s naked eye, is an exceptionally promising sensing technique in that it enables convenient detection and simplification of entire sensing system.
Hyunwoo Son   +4 more
doaj   +1 more source

Ag+ colorimetric sensor based on graphene oxide/nano-platinum composite

open access: yesJournal of Analytical Science and Technology, 2023
With the development of society, pollution accidents occur more frequently, and the effects of toxic substances containing silver on human health and environment are increasingly extensive.
Yanping Qu   +4 more
doaj   +1 more source

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