Results 11 to 20 of about 270,893 (292)

Metal-enhanced fluorescence: an emerging tool in biotechnology [PDF]

open access: yesCurrent Opinion in Biotechnology, 2005
Over the past 15 years, fluorescence has become the dominant detection/sensing technology in medical diagnostics and biotechnology. Although fluorescence is a highly sensitive technique, where single molecules can readily be detected, there is still a drive for reduced detection limits.
Kadir, Aslan   +5 more
openaire   +4 more sources

Metal-Enhanced Fluorescence from CdTe Nanocrystals:  A Single-Molecule Fluorescence Study [PDF]

open access: yesJournal of the American Chemical Society, 2006
We described, for the first time, the metal-enhanced fluorescence from the CdTe nanocrystals spin coated on silver island films (SIFs). CdTe nanocrystals show approximately 5-fold increase in fluorescence intensity, 3-fold decrease in lifetimes, and reduction in blinking on SIF surfaces that can be observed by ensemble and single-molecule fluorescence ...
Krishanu, Ray   +2 more
openaire   +4 more sources

Aluminum foil as a substrate for metal enhanced fluorescence of bacteria labelled with quantum dots, shows very large enhancement and high contrast

open access: yesSensing and Bio-Sensing Research, 2020
Very high surface/metal enhanced fluorescence was observed for E. coli single bacteria cells labeled with composite CdSeS/ZnS quantum dots (QDs) on three substrates: aluminum foil, aluminum film and gold film.
Alisher Sultangaziyev   +5 more
doaj   +1 more source

Gold Nanostars-AIE Theranostic Nanodots with Enhanced Fluorescence and Photosensitization Towards Effective Image-Guided Photodynamic Therapy

open access: yesNano-Micro Letters, 2021
Dual-functional aggregation-induced photosensitizers (AIE-PSs) with singlet oxygen generation (SOG) ability and bright fluorescence in aggregated state have received much attention in image-guided photodynamic therapy (PDT).
Mohammad Tavakkoli Yaraki   +6 more
doaj   +1 more source

Zinc oxide nanostructures for fluorescence and Raman signal enhancement: a review

open access: yesBeilstein Journal of Nanotechnology, 2022
Since the initial discovery of surface-enhanced Raman scattering (SERS) and surface-enhanced fluorescence (SEF), these techniques have shown huge potential for applications in biomedicine, biotechnology, and optical sensors. Both methods rely on the high
Ioana Marica   +4 more
doaj   +1 more source

Effect of Silver Nanoparticles on Fluorescence Intensity of Fluoreseina Dye Mixed in One Solution

open access: yesIraqi Journal of Physics, 2021
Metal enhanced fluorescence (MEF) is an unequaled phenomenon of metal nanoparticle surface plasmons, when light interacts with the metal nanostructures (silver nanoparticles) which result electromagnetic fields to promote the sensitivity of fluorescence.
Ruwaida Tahseen Shbeeb   +2 more
doaj   +1 more source

Metal-Enhanced Fluorescence (MEF) [PDF]

open access: yesBiophysical Journal, 2009
In recent years our laboratories have described the favorable interactions and outcomes of both plasmon supporting particles (Ag, Au, Cu, Zn, Ni, Cr) and substrates with electronically excited states. These favorable effects have included enhanced fluorescence emission from singlet states, S1 and S2, as well as enhanced phosphorescence yields from ...
Zhang, Yongxia   +2 more
openaire   +1 more source

Controllable Synthesis of Biocompatible Fluorescent Carbon Dots From Cellulose Hydrogel for the Specific Detection of Hg2+

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
Heavy metal ions overload can seriously harm human health. Simple and effective strategies for the specific detection of heavy metal ions are of great important.
Hailong Huang   +5 more
doaj   +1 more source

Metal-Enhanced Fluorescence from Plastic Substrates [PDF]

open access: yesJournal of Fluorescence, 2005
We report the first findings of Metal-Enhanced Fluorescence (MEF) from modified plastic substrates. In the past several years our laboratories have reported the favorable effects of fluorophores in close proximity to silver nanoparticles. These effects include, enhanced fluorescence intensities, (increased detectability), and reduced lifetimes ...
Kadir, Aslan   +3 more
openaire   +2 more sources

Review: Applications of surface-enhanced fluorescence (SEF) spectroscopy in bio-detection and biosensing

open access: yesSensing and Bio-Sensing Research, 2020
Surface-enhanced fluorescence (SEF) is rapidly becoming one of the main spectroscopic techniques for the detection of a variety of biomolecules and biomarkers.
Alisher Sultangaziyev, Rostislav Bukasov
doaj   +1 more source

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