Results 301 to 310 of about 223,239 (351)
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Journal of Environmental Engineering, 1983
The use of Rhodamine WT fluorescent dye in the presence of nitrite was recently linked with the formation of diethylnitrosamine (DENA), a compound with mutagenic and carcinogenic properties. Lissamine FF fluorescent dye was selected as a substitute for Rhodamine WT dye to avoid potential problems upstream of water intakes.
Dennis E. Ford, Kent W. Thornton
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The use of Rhodamine WT fluorescent dye in the presence of nitrite was recently linked with the formation of diethylnitrosamine (DENA), a compound with mutagenic and carcinogenic properties. Lissamine FF fluorescent dye was selected as a substitute for Rhodamine WT dye to avoid potential problems upstream of water intakes.
Dennis E. Ford, Kent W. Thornton
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NLOphoric imidazole-fused fluorescent anthraquinone dyes
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2021The Z-scan and DFT techniques were explored to investigate the non-linear optical properties of anthraquinone fused imidazole-based D-π-A dyes. With the help of UV-visible spectral analysis, pH study, CV analysis, HOMO-LUMO interaction, MEP plots, and quinoidal character the influence of intramolecular charge transfer characteristics and H-bonding ...
Nitesh N, Ayare +5 more
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Fiberized fluorescent dye microtubes
SPIE Proceedings, 2013In the present work we study the effect of the length of fluorescent dye-filled micro-capillaries on the fluorescence spectra. Two types of micro-capillaries have been studied: a 100 μm inner diameter fused silica capillary with a transparent coating and one of the holes of a fiber optic glass ferrule with 125 μm inner diameter. The tubes were filled
Veselin Vladev, Tinko Eftimov
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Endocytosis Assays Using Cleavable Fluorescent Dyes
2022Endocytosis mediates the entry of surface and extracellular cargoes into the cell. In this chapter, we describe assays to quantitively measure the endocytosis of both soluble and transmembrane cargo proteins, taking advantage of cleavable fluorescent dyes labeling cargo proteins or antibodies recognizing cargo proteins.
Shifeng, Wang +3 more
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Lucifer dyes—highly fluorescent dyes for biological tracing
Nature, 1981Lucifer dyes are intensity fluorescent 4-aminonaphthalimides which are readily visible in living cells at concentrations and levels of illumination at which they are nontoxic. Because of their low molecular weight they frequently pass from one cell to another; this widespread phenomenon, termed dye-coupling, is thought to reveal functional ...
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Fluorescent Voltage-Sensitive Dyes
Journal of Clinical Neurophysiology, 1988Voltage-sensitive dyes are a means to optically monitor changes in membrane potential. Their application in research has grown steadily over the last two decades as better dyes have been developed. The techniques presently in use are providing unique information about biologic systems from bacteria to the functional organization of primate occipital ...
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Alcian yellow as a fluorescent dye
Acta Histochemica, 1989Fluorescence characteristics of the cationic dye Alcian yellow are described. Under ultraviolet excitation, the chromatin and basophilic cytoplasm from cell smears show a blue-white emission, which depends on the presence of nucleic acids. Glycosaminoglycans-containing structures (mast cell granules, cartilage matrix) appear brightly fluorescent.
J C, Stockert +2 more
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Solgel transition in dye fluorescence measurements
Applied Optics, 1997The results of fluorescence quenching measurements, obtained for a dye-substituted aqueous gelatin solution during the sol-gel transition, are presented. Simultaneous optical polarization rotation and fluorescence studies allow us to find the dependence of the fluorescence yield on the amount of helix created in the medium. The exact gel point has been
B E, Ratajska-Gadomska +3 more
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Labeling Bacterial Flagella with Fluorescent Dyes
2018We describe labeling of bacteria with amino-specific or sulfhydryl-specific Alexa Fluor dyes, methods that allow visualization of flagellar filaments, even in swimming cells. Bacterial flagellar filaments are long (~10 μm), but of small diameter (~20 nm), and their rotation rates are high (>100 Hz), so visualization is difficult.
Linda, Turner, Howard C, Berg
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2013
The article contains sections titled: 1. Introduction 2. Naphthalimide Dyes 3. Coumarin Dyes 4. Xanthene Dyes 5. Thioxanthene and Benzoxanthene Dyes 6. Naphtholactam, Hydrazam Dyes and Homologues 7. Azlactone Dyes 8. Methine Dyes 9. Oxazine and Thiazine Dyes 10. Miscellaneous Fluorescent Dyes 11. UV Fluorescent Chromophores with
Rami Ismael +2 more
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The article contains sections titled: 1. Introduction 2. Naphthalimide Dyes 3. Coumarin Dyes 4. Xanthene Dyes 5. Thioxanthene and Benzoxanthene Dyes 6. Naphtholactam, Hydrazam Dyes and Homologues 7. Azlactone Dyes 8. Methine Dyes 9. Oxazine and Thiazine Dyes 10. Miscellaneous Fluorescent Dyes 11. UV Fluorescent Chromophores with
Rami Ismael +2 more
openaire +1 more source