منابع مشابه
Merocyanine dyes with improved photostability.
Merocyanine dyes have proven valuable for live cell fluorescence imaging applications, but many structures have been limited by rapid photobleaching. We show that photostability is substantially enhanced for merocyanines having a cyano group at a specific position in the central polymethine chain. Evidence is presented that this is due to reduction in reactivity of the dyes with singlet oxygen....
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Merocyanine (MC) isomers that are formed after absorption of a UV photon by 1',3'-dihydro-1',3'-3'-trimethyl-6-nitrospiro[2H-1-benzopyran-2',2'-(2H)-indole] were studied. Several, predominantly TTC and TTT, merocyanine isomers are present in toluene solution ("T" and "C" indicate trans and cis conformations of the C-C bonds in the methine bridge). Excitation in the MC visible absorption band (a...
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Students in organic chemistry are taught a number of fundamental principles concerning the factors which govern the properties of organic compounds. Among these principles is the effect of substituents on the properties of aromatic rings, especially the benzene ring. For instance, we teach the students that the reactivity of the benzene molecule towards electrophilic substitution reactions is e...
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Results of the studies carried out on localization and photodynamic action of merocyanine 540 (MC540) on carcinoma of cervix (HeLa) cells are presented. Fluorescence microscopic study showed that when HeLa cells were incubated with MC540 in dark, the dye localized in plasma membrane of cells. Photoirradiation of cells in presence of MC540 led to enhancement of dye uptake, intracellular localiza...
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ژورنال
عنوان ژورنال: The Journal of Physical Chemistry A
سال: 2018
ISSN: 1089-5639,1520-5215
DOI: 10.1021/acs.jpca.8b09048