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...

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...

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.

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...

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...

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 ...

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.