1. Phenol red and neutral red are excreted by the perfused frog's kidney by different routes. 2. Phenol red is excreted chiefly through the glomerulus, neutral red through the tubules. 3. Some slight excretion of each of these dyes by the converse mechanism is possible, though there is no evidence in our experiments that necessitates such a conclusion. 4. The importance of methods leading to th...

A novel chitosan-based biopolymer dye possessing antibacterial properties was synthesized by reaction of O-carboxymethyl chitosan and Acid Red GR. The synthesized materials were characterized by Fourier transform infrared spectroscopy (FTIR), degree of substitution (DS), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TG), X-ray diffraction (XRD), water solubility test, anti...

This publication uses a colorimetric method based on the absorbance spectra of dye solutions to improve on Beer’s law when calculating the dye concentrations of a three-component mixture. The performance of the new method is compared with that of Beer’s law evaluated at three wavelengths, and Beer’s law evaluated at 16 wavelengths. Colorimetric method gives the best prediction of d...

Industrial graphite becomes waste after its use and dumping of such leads to environmental damage health risks, thus needs alternative measures. This study is the first kind convert industrial exfoliated graphene(EG) using EG as an adsorbent. The used conversion method chemicothermal which greener competent. resultant was micro-analyzed for application engineered adsorption capacity tested remo...

The magnetic adsorbent nanoparticle was modified using cationic surface active agent. Zinc ferrite nanoparticle and cetyl trimethylammonium bromide were used as an adsorbent and a surface active agent, respectively. Dye removal ability of the surface modified nanoparticle as an adsorbent was investigated. Direct Green 6 (DG6), Direct Red 31 (DR31) and Direct Red 23 (DR23) were used. The charact...

Phytoremediation is an eco-friendly and non destructive method of dye removal from water and soil. In this research study, phytoremediation potential of a macroalgae Chara vulgaris was investigated as a viable biomaterial for biological treatment of congo red in aqueous solution. The effects of parameters such as reaction time, pH, initial dye concentration, temperature and amount of algae on b...

BACKGROUND Fluorophore dyes are used extensively in biomedical research to sensitively assay cellular constituents and physiology. We have created, as proof of principle, fluorophore dye binding peptides that could have applications in fluorescent dye-based approaches in vitro and in vivo. RESULTS A panel of Texas red, Rhodamine red, Oregon green 514 and fluorescein binding peptides, termed h...

Application of eucaryote inhibitors to the estimation of production and grazing mortality of bacterioplankton was evaluated. Exposure to a range of concentrations of thiram, cycloheximide, and neutral red (0.4 to 210, 36 to 1,777, 4 to 346 ,uM, respectively) was 98 to 100% effective at inhibiting growth of a chrysomonad in culture. Exposure to colchicine and griseofulvin (50 to 1,000 ,uM for bo...