Results 161 to 170 of about 4,618 (202)
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Luminescence of Leuco-Thiazine Dyes
Journal of Fluorescence, 2003Details of the novel luminescence of the leuco forms of the thiazine dyes, methylene blue and thionine, are reported, including their emission maxima, quantum yields and lifetimes of the luminescence. Other work shows that this luminescence is independent of reducing agent type and solution pH and is a common feature of most thiazine dyes.
Lee, S.K., Mills, Andrew
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Experimental Work: Thermochromic Leuco Dyes
2020Development of paste recipes with TC and conventional pigments for textile printing is commonly realized through empirical processes. Towards a systematic and more accurate process to create TC textiles, this chapter presents experimental work based on instrumental processes of paste recipe formulation and respective integration in textile substrates ...
Isabel Dias Cabral +2 more
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Biodegradation of leuco derivatives of triphenylmethane dyes by Sphingomonas sp. CM9
Biodegradation, 2010A leuco derivatives of triphenylmethane dyes degrading bacterium, strain CM9, was isolated from an aquafarm field. Based on morphology, physiologic tests, 16S rDNA sequence, and phylogenetic characteristics, it was identified as Sphingomonas sp. This strain was capable of degrading leucomalachite green (LMG), leucocrystal violet and leucobasic fuchsin ...
Wu, Jun +8 more
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AROMATIC ALDEHYDE-LEUCO DYE PHOTOXIDATION
Pure and Applied Chemistry, 1977Tris (dimethylaminophenyl) methane leuco dyes undergo rapid photoxidation together with aromatic aldehydes. Quantum yields for dye formation in film media are ~750. A practical photoimaging system based on this chemistry was developed. The chemical aspects of sensitization, achievement of dark stability, and the rendering of the films photo-insensitive
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Electrochemical control of luminescence color using luminescent leuco dye derivatives
Journal of the Society for Information Display, 2021AbstractElectrochemical switching of luminescence color, that is, electrofluorochromism, has received increasing attention because of its extensive applications. In this study, we investigate the combination of a luminescent EC molecule and a blue luminescent molecule to achieve electrochemical control of luminescence color by controlling the energy ...
Kazuki Nakamura +2 more
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ChemInform Abstract: Unexpected Regioselectivity in the Sulfonation of Leuco Xanthene Dyes.
ChemInform, 1994AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
P. R. CARLIER +2 more
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Equilibrium Adsorption Values of Leuco Vat Dyes on Cotton
Journal of the Society of Dyers and Colourists, 1957The equilibrium adsorption of a series of leuco vat dyes on cotton has been measured in various concentrations of sodium chloride and sodium hydroxide. From the results the thermodynamic affinities have been calculated. Deviations from theory are observed in so far as the affinities are not constant, but show a regular drift as the concentration of ...
R. H. PETERS, H. H. SUMNER
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2002
The chemistry of quinone dyes has been discussed in a series of books entitled The Chemistry of Synthetic Dyes, edited by Venkataraman. The general chemistry of quinoid compounds has been discussed by Patai. There have been many books that cover quinoid compounds as dyes and pigments but very few discuss the chemistry of the corresponding leuco dyes ...
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The chemistry of quinone dyes has been discussed in a series of books entitled The Chemistry of Synthetic Dyes, edited by Venkataraman. The general chemistry of quinoid compounds has been discussed by Patai. There have been many books that cover quinoid compounds as dyes and pigments but very few discuss the chemistry of the corresponding leuco dyes ...
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ChemInform Abstract: AROMATIC ALDEHYDE‐LEUCO DYE PHOTOXIDATION
Chemischer Informationsdienst, 1977AbstractTris‐(dimethylaminophenyl)methan‐ Leukofarbstoffe (I) werden in Gegenwart aromatischer Aldehyde, insbesondere solcher der Formel (II), rasch zu den Farbstoffen der Formel (III) photooxidiert, wobei die Quantenausbeuten ca. 750 betragen.
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Chemistry and Applications of Leuco Dyes
2002Spiropyran Leuco Dyes H. Nakazumi. Leuco Quinone Dyes M. Matsuoka. Thiazine, Oxazine, and Phenazine Leuco Dyes T. Van Thien. Synthesis and Properties of Phthalide-Type Color Formers I.J. Fletcher, R. Zink. The Chemistry of Leuco Triarylmethanes R. Muthyala, X. Lan. The Chemistry of Fluoran Leuco Dyes Y. Hatano.
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