نتایج جستجو برای: dye application
تعداد نتایج: 801160 فیلتر نتایج به سال:
– The three-dimensional optical anisotropy of photo-buffed dye-doped polymer films and the resulting orientation imparted to a liquid crystal in contact are probed using total internal reflection. Although the linearly polarized writing light generates a uniaxial distribution of dye molecules, the polymer films are biaxial, a result of symmetry breaking by the film surface. Photo-induced anisot...
A novel solvatochromic betaine dye has been synthesized from xanthosine and characterized spectroscopically by UV-vis in a broad range of solvents. The dye 9-(2',3',5'-tri-O-acetyl-beta-d-ribofuranosyl)-2-(pyridinium-1-yl)-9H-purin-6-olate, 1a, exhibits solvent-induced spectral band shifts that are (2)/(3) as large as that of the betaine known as Reichardt's dye, which forms the basis of the E(...
Off/on, on/off, and on1/on2 fluorescence switching systems find application in a variety of areas, for each which particular dye or dye-switch tether must be specifically designed synthesized. Herein it is demonstrated that such tight requirement can avoided by using easily prepared mixtures readily available emitters phase change materials (PCMs). By proper selection the PCM and, if needed, ad...
The purpose of this study was to provide valuable insight regarding the use of Rhodamine WT (red) dye as a tracer for evaluating injected concentrations. More specifically, the effects of mixing the dye with glycerin to simulate the viscosity of a pesticide (e.g., glyphosate) or injecting the dye/glycerin mixture into deionized (DI) versus tap water on developing appropriate calibration equatio...
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