Results 221 to 230 of about 10,562 (252)

Tuning lipophilicity for optimizing the H2S sensing performance of coumarin–merocyanine derivatives

New Journal of Chemistry, 2019
In this paper, a series of coumarin-merocyanine derivatives with different lipophilicities were synthesized to investigate the relationship between structural lipophilicity and reactivity as well as mitochondrial targeting ability.
Hongbao Fang, Yuncong Chen, Xiangchao Shi, Yang Bai, Zhongyan Chen, Zhong Han, Yuming Zhang, Weijiang He, Zijian Guo   +8 more
semanticscholar   +1 more source

Distribution of merocyanine 540 in phospholipid membranes

Journal of Fluorescence, 1993
The interaction of the fluorescent photosensitizer merocyanine 540 (MC-540) with model phospholipid membranes was studied. Two different-colored species (monomers and dimers) of MC-540 were registered in phospholipid liposomes. Variations in both phospholipid composition (DMPC, DPPC, POPC, egg PC) and temperature (15-60°C) resulted in changes in the MC-
L, Sikurová, R, Franková
openaire   +2 more sources

Interaction of merocyanine 540 with charged membranes

Bioelectrochemistry, 2002
In this work, phospholipid liposomes were used to investigate the influence of lipid negative charge on the interaction of merocyanine 540 (MC540) with model membranes. Liposomes were prepared from a mixture of neutral dimyristoyl lecithin (DMPC) and negatively charged dimyristoyl phosphatidic acid (DMPA).
Anton, Mateasik, Libusa, Sikurová, Dusan, Chorvát   +2 more
openaire   +2 more sources

Carotenoid and Merocyanine Probes in Chromatophore Membranes

1975
Increasing awareness of the vast amount of information that can be obtained from intrinsic and extrinsic probes of membrane phenomena has led to a wide-ranging survey of the properties of both types of probe. Intrinsic probes of photosynthetic membranes are provided by the carotenoid pigments.
Britton Chance, Margareta Baltscheffsky, W. K. Cheng   +2 more
openaire   +2 more sources

Variation of Donor and Acceptor Strength in Analogues of Brooker's Merocyanine and Generalization to Various Classes of Charge Transfer Compounds.

Journal of Physical Chemistry A, 2019
Derivatives of Brooker's merocyanine (BM) have been investigated, which possess different donors and acceptors and therefore vary their donor-acceptor strength SDA. The 00 energies have been extracted from the spectra and compared. Under basic conditions,
M. Dekhtyar, W. Rettig, A. Rothe, V. Kurdyukov, A. Tolmachev   +4 more
semanticscholar   +1 more source

Destruction of membranes by merocyanine 540

Journal of Luminescence, 1997
Abstract The effect of a photosensitizer merocyanine 540 (MC 540) on the bilayer structure of model phospholipid membranes was studied using diphenylhexatriene (DPH) fluorescence anisotropy and light-scattering techniques. A pronounced reduction of DPH anisotropy decay within 60 min of DPH incubation was induced by the presence of MC 540 in lecithin ...
L. Šikurová, B. Čunderlíková
openaire   +1 more source

Demystifying the solvatochromic reversal in Brooker’s merocyanine dye

Phys. Chem. Chem. Phys., 2011
Based on hybrid QM/MM simulation techniques, we rationalize the spectacular solvatochromic reversal behavior observed for a stilbazolium merocyanine (SM) called Brooker's merocyanine dye. This solvatochromic reversal is attributed to a change in the solute π-electron distribution from zwitterionic to neutral following the change in solvents from polar ...
Murugan, N.A., Kongsted, Jacob, Rinkevicius, Zilvinas, Ågren, Hans   +3 more
openaire   +3 more sources

ChemInform Abstract: MEROCYANINE DYES FROM PERFLUOROQUINONES

Chemischer Informationsdienst, 1977
AbstractDurch Kondensation der Methylenbasen (III) mit Tetrafluorbenzochinon (II) oder Perfluor‐l ,4‐naphthochinon (IV) erhält man Merocyanine gemäß (I) und (V).
G. A. LEZENKO, A. YA. IL'CHENKO
openaire   +1 more source

Photochemical switching through protonation in merocyanines

Journal of Photochemistry and Photobiology A: Chemistry, 1999
Abstract The ground- and excited-state energies for the planar and various 90-degree twisted structures of the merocyanine Me2N–CHCH–CHCH–CHO and its protonated form + Me 2 N CH–CHCH–CHCH–OH have been calculated by the AM1 method involving complete geometry optimization.
M. Dekhtyar, W. Rettig
openaire   +1 more source

Solvent effects on merocyanine spectra

Spectrochimica Acta, 1958
Abstract Solvent effects on the visible absorption spectra of three merocyanine dyes are described. The dyes comprise two (I and II) of exceedingly high polarity, and a third (III) less polar than I and II but still highly polar by ordinary standards.
openaire   +1 more source