نتایج جستجو برای: sensitized fluorescence

تعداد نتایج: 124259  

Journal: :iranian journal of pharmaceutical sciences 0
masoomeh shaghaghi department of analytical chemistry, faculty of chemistry, tabriz university, tabriz, iran jamshid l. manzoori department of analytical chemistry, faculty of chemistry, tabriz university, tabriz, iran abolghasem jouyban faculty of pharmacy, and drug applied research center, tabriz university of medical sciences, tabriz, iran

a simple, rapid, selective and highly sensitive fluorimetric method for determination of two catecholamines, i.e. norepinephrine (ne) and epinephrine (ep), in serum samples was developed. the method is based on the fluorescence sensitization of terbium (tb3+) by complexation with both catecholamines in the presence of lanthanum (la3+), as a co-cation, and in a na2so3 solution (chemical deoxygen...

Journal: :Materials advances 2023

Phosphorescence-sensitized fluorescence (PSF) shows a great potential on overcoming the 25% internal quantum efficiency limit for fluorescent OLEDs. Other than vacuum thermal deposition, herein we report solution-processed PSF. As a...

Journal: :Journal of clinical microbiology 1978
T P Gillis J J Thompson

Fluorescence of sensitized bacterial suspensions, reactive with either fluorescein-labeled or rhodamine-labeled antiglobulins, could be quantitatively distinguished in dual-labeled preparations by fluorescence immunoassay.

2001
G. R. Seely

We have examined the quenching of pyrochlorophyll fluorescence by a series of substituted nitrobenzenes in ethanol-pyridine solution and the effect of fluorescence quenching on the quantum yield of sensitized photoreduction of three of the nitro compounds by hydrazobenzene. All nitro compounds examined are at least moderately good quenchers of fluorescence. There is a good correlation between t...

Journal: :Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 2015
Fan Deng Megan S Lazorski Felix N Castellano

The near-visible-to-blue singlet fluorescence of anthracene sensitized by a ruthenium chromophore with a long-lived triplet-excited state, [Ru(5-pyrenyl-1,10-phenanthroline)(3)](PF(6))(2), in acetonitrile was investigated. Low intensity non-coherent green light was used to selectively excite the sensitizer in the presence of micromolar concentrations of anthracene generating anti-Stokes, single...

2015
Alexander S. Goryashchenko Maria G. Khrenova Anna A. Bochkova Tatiana V. Ivashina Leonid M. Vinokurov Alexander P. Savitsky Herbert Schneckenburger

This article describes the genetically encoded caspase-3 FRET-sensor based on the terbium-binding peptide, cleavable linker with caspase-3 recognition site, and red fluorescent protein TagRFP. The engineered construction performs two induction-resonance energy transfer processes: from tryptophan of the terbium-binding peptide to Tb(3+) and from sensitized Tb(3+) to acceptor--the chromophore of ...

Journal: :Photonic Sensors 2021

Abstract A novel nitrogen-doped carbon quantum dots (N-CDs) were prepared by the microwave irradiation method. The fluorescence quenching effect of Co(II) on N-CDs was studied in sodium dodecyl sulfate (SDS) medium and sensitized SDS. linear range calibration curve for determination 0.17µg/mL-11.8µg/mL limit detection 0.052µg/mL. method has been applied samples with satisfactory results.

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