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Fluorescence Quenching in Porous Silicon/Conjugated Polymer Composites
MEH-PPV and m-LPPP polymers were spin-coated onto porous silicon (PS). Quenching of the polymer and PS fluorescence has been investigated by means of time-resolved and steady state fluorescence spectroscopy.
Pranculis, Vytenis +3 more
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Luminescent Properties of β-(hydroxyaryl)-butenolides and Fluorescence Quenching in Water
This work describes the luminescent properties of the new compound β-(hydroxyaryl)-butenolides recently discovered. The compounds were subjected to UV–Vis absorption and fluorescence analyzes when diluted in different solvents.
Finêncio, Beatriz Miorin [UNESP] +7 more
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Quenching of chlorophyll‐a fluorescence by reduced PMS [PDF]
FEBS Letters, 1975 openaire +1 more source
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Fluorescence quenching studies with proteins
Analytical Biochemistry, 1981Abstract A review is presented on the use of the technique of solute fluorescence quenching to study the structure and dynamics of proteins. A number of factors are discussed that must be considered in analyzing such data. Among these factors are the efficiency of the quenching process, the relative importance of static quenching, the heterogeneity ...
M R, Eftink, C A, Ghiron
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Quenching of chlorophyll fluorescence by quinones
IUBMB Life, 1998AbstractQuinones caused quenching of Chl a fluorescence in native and model systems. Menadione quenched twofold the fluorescence of Chl a and BChl a in pea chloroplasts, chromatophores of purple bacteria, and liposomes at concentrations of 50‐80 μM. To obtain twofold quenching in Triton X‐100 micelles and in ethanol, the addition of 1.3 mM and 11 mM ...
V D, Samuilov +4 more
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Fluorescence Quenching in Membrane Phase
Biochemical and Biophysical Research Communications, 1995Membrane-related events can be investigated when the fluorescence of an intramembrane fluorophore is quenched by molecules that are dissolved in lipid phase. In this case the bimolecular quenching constant characterises the relative transport rate of the fluorophore and quencher molecules in the membrane interior and thereby it is related to the ...
Z, Lakos, A, Szarka, B, Somogyi
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Steric effect on fluorescence quenching
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2005In this communication we have reported the steric effect on the fluorescence quenching rate constants of the electron transfer (ET) process. We have done a comparative study using donor (D)-acceptor (A) systems with different exergonicity (-deltaG(f)). Different carbazole derivatives (CZ): 1,4-dicyanobenzene (DCB) systems (-deltaG(f) = 0.7-0.8 eV) were
Suchandra, Chatterjee +3 more
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Detection of oxygen by fluorescence quenching
Applied Optics, 1985The incorporation of an aromatic hydrocarbon fluorescent compound into silicone allows utilization of fluorescence quenching as a mechanism to measure molecular oxygen concentration in the composite matrix. Excitation and emission spectra of the aromatics change in agreement with the Franck-Condon model when the universal solvent is benzene ...
M E, Cox, B, Dunn
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Fluorescence quenching of acridines by strandin
Archives of Biochemistry and Biophysics, 1961Abstract The interaction of four acridine compounds with strandin has been studied, with special attention being directed to acriflavine. In all cases fluorescence quenching by strandin occurs, the nature of the quenching curve depending on the dye involved.
A F, HARRIS, A, SAIFER, S K, WEINTRAUB
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