Results 141 to 150 of about 9,624 (189)

Effects of Electrolyte Concentration on the Rotational Dynamics of Resorufin

The Journal of Physical Chemistry A, 2010
We report on the rotational diffusion dynamics of the anionic chromophore resorufin in water and N-octyl-2-pyrrolidone (NOP) solutions as a function of solution electrolyte concentration. Our data show that resorufin exhibits a single exponential anisotropy decay in aqueous solutions containing up to 0.1 M lithium perchlorate (LiClO(4)). In contrast to
Christine E, Hay, Frank, Marken, G J, Blanchard   +2 more
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A spectroscopic investigation of the temperature and solvent sensitivities of resorufin

Journal of the Chemical Society, Faraday Transactions 2, 1989
The electronic absorption spectra, fluorescence spectra and fluorescence lifetimes of resorufin anion in protic (ethanol–methanol 4 : 1 v/v) and aprotic (propiononitrile–butyronitrile 4 : 5 v/v) solvents in the temperature range 87–293 K are reported.
FLAMIGNI L, VENUTI E, CAMAIONI N, BARIGELLETTI F   +3 more
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Resorufin inhibits the in vitro metabolism and mutagenesis of benzo(a)pyrene

Biochemical and Biophysical Research Communications, 1986
7-Hydroxyphenoxazin-3-one, commonly known as resorufin, strongly inhibits benzo(a)pyrene-induced mutation in the Ames bacterial reversion assay. The antimutagenic mechanism is due in part to redox cycling of resorufin with the concommitant transfer of reducing equivalents from NADPH to molecular oxygen.
J E, Jablonski, P D, Sullivan
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Synthesis and properties of condensed derivatives of resorufin

Chemistry of Heterocyclic Compounds, 1994
10-Hydroxy-5H-dibenzo(a,i)phenoxazin-5-one and its 6-chloro derivative - condensed derivatives of resorufin, simultaneously containing in the molecule linearly and angularly condensed benzene rings - were synthesized. Their spectral-luminescent properties were investigated.
V. I. Alekseeva, L. E. Marinina, L. P. Savvina, E. A. Lukyanets   +3 more
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Synthesis of 7-Alkoxyquinolines, Coumarins, and Resorufins

Synthetic Communications, 2000
Abstract Synthesis of the title compounds by treatment of the sodium salts of 7-quinolinol, 7-hydroxycoumarin, and resorufin with alkyl halides is described.
Eugene A. Mash, Bhasker Reddy Aavula
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The Action of Cytosolic Aldehyde Dehydrogenase on Resorufin Acetate

1996
Aldehyde dehydrogenase is well known to have the ability to act as an esterase as well as to catalyse the oxidation of aldehydes by NAD+. Some workers have been of the opinion that the twin activities of the enzyme are not closely related and occur at separate enzymic sites (see, for example, Motion et al., 1988), whereas we have thought for a number ...
T M, Kitson, K E, Kitson
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Selective Perborate Signaling by Deprotection of Fluorescein and Resorufin Acetates

Organic Letters, 2010
The acetate derivatives of fluorescein and resorufin exhibited a prominent turn-on type signaling behavior toward BO(3)(-) ions over other common anions. Signaling is based on the selective deprotection of acetate groups by perborate, which resulted in significant chromogenic and fluorogenic signaling.
Myung Gil, Choi, Sunyoung, Cha, Ji Eun, Park, Haekyung, Lee, Hye Lim, Jeon, Suk-Kyu, Chang   +5 more
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Chromogenic and Fluorogenic Signaling of Sulfite by Selective Deprotection of Resorufin Levulinate

Organic Letters, 2010
A new sulfite-selective probe system based on resorufin was investigated. Levulinate of resorufin exhibited a prominent chromogenic and turn-on type fluorogenic signaling toward sulfite ions in aqueous media based on the selective deprotection of the levulinate group.
Myung Gil, Choi, Jiyoung, Hwang, Suyoung, Eor, Suk-Kyu, Chang   +3 more
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Cytosol-mediated reduction of resorufin: A method for measuring quinone oxidoreductase

Archives of Biochemistry and Biophysics, 1984
The reduction of resorufin (7-hydroxyphenoxazone) fluorescence was catalyzed by enzymes present in the hepatic cytosol of rats and hamsters. This reaction was mediated by either NADH or NADPH, was completely inhibited by 10 microM dicumarol, and was not affected by anaerobic conditions (purging the reaction cuvette with nitrogen).
R W, Nims, R A, Prough, R A, Lubet
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Resorufin as a probe for the dynamics of solvation by hydrogen bonding

Chemical Physics Letters, 1993
Abstract Resorufin is shown to be good probe solute for the direct measurement of the rates of formation and breaking of solvent—solute hydrogen bonds. In ethanol, a hydrogen-bond equilibration time of 40 ps is found for both the ground and excited states. Deuteration of the solvent has no effect on the equilibration time.
Jongwan Yu, Mark Berg
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