This study presents Saccharomyces cerevisiae, an alcohol fermentation waste, for removal of acidic dyes (Red 3:1 & Orange 13) even after chemical and physical modification. Biosorption performance was found 96.29% through untreated biomass and 97.31% through pretreated biomass with hydrogen peroxide solution for Red 3:1, whereas 93.49% through untreated biomass and 94.71% through pretreated bio...

Molecular modification of dye-sensitized, mesoporous TiO2 electrodes changes their electronic properties. We show that the open-circuit voltage (V(oc)) of dye-sensitized solar cells varies linearly with the dipole moment of coadsorbed phosphonic, benzoic, and dicarboxylic acid derivatives. A similar dependence is observed for the short-circuit current density (I(sc)). Photovoltage spectroscopy ...

The objective of this study was to investigate the biosorption of an azo dye (Methylene blue) by a wetland phytomass (Typha angustata) under post-phytoremediation scenario. Thus, the phytomass was used without any chemical modification. The batch adsorption experiments were conducted to evaluate the effects of contact time and temperatures (25–45 C) on the adsorption of methylene blue (MB) from...

PURPOSE To describe a trypan blue dye staining technique under air, a modification of the previously described 30 G needle under-air technique. DESIGN This is a prospective, randomized study of 1,000 eyes of 952 patients undergoing phacoemulsification in a private practice setting from January 2015 to August 2016. Three variants as a modification of the previously known 30 G needle technique ...

Sustainable and green materials have been studied in dye pigment productions to reduce their environment impacts from being produced applied. Although natural dyes are an excellent choice move agrowaste, some improvements must be made before they applied given poor fastness. One way of improving properties is adsorption into nanoclay structures give hybrid pigments. This work used tubular hallo...

Pyronine at non-toxic concentrations greatly reduced the yield of encephalomyocarditis virus produced by Krebs ascites cells. The inhibition was greatest when pyronine was added 2 hr after infection and was less when the dye was added later. It also decreased when the dye was added shortly before infection. It could be reversed by removing pyronine from infected cells less than 2 hr after treat...

We have found that R6G laser dye in a concentration of 0.1 g l−1 mixed with a solution of aggregated silver nanoparticles exhibits a new emission band with a maximum at 612 nm. This band does not exist in pure dye of comparable concentration or in a mixture of dye with a solution of single silver nanoparticles. A qualitatively similar red-shifted emission band is observed in pure R6G dye at ver...

Tumor hypoxia is associated with the rapid proliferation and growth of malignant tumors, and the ability to detect tumor hypoxia is important for predicting tumor response to anti-cancer treatments. We have developed a class of dye-conjugates that are related to indocyanine green (ICG, ) to target tumor hypoxia, based on in vivo infrared fluorescence imaging using nitroimidazole moieties linked...