Polyelectrolyte multilayer films are a versatile functionalization method of surfaces and rely on the alternated adsorption of oppositely charged species. Among such species, charged dyes can also be alternated with oppositely charged polymers, which is challenging from a fundamental point of view, because polyelectrolytes require a minimal number of charges, whereas even monovalent dyes can be...

Time-dependent density functional theory (TD-DFT) was employed to calculate the UV/vis spectra for three of the triphenylamine (TPA)-donor dyes, TC1, L1, and LJ1, in isolation as well as when complexed with a titania nanoparticle. TPA-donor dyes are a class of promising organic dyes for use in dye-sensitized solar cells (DSSCs). The three dyes studied here are among the smallest of these molecu...

A. Organic Analyses 218 1. General Organic Analyses 218 2. Pesticides 219 3. PAHs and PCBs 221 4. Dioxin 222 5. VOCs 223 6. Textile Dyes 223 7. Surfactants 223 8. Disinfection Byproducts 224 9. Taste and Odor Compounds 226 10. Algal and Bacterial Toxins 226 11. Other Organic Pollutants 227 B. Inorganic Analyses 229 1. Disinfection Byproducts 229 2. Perchlorate and Dissolved Gases 230 3. Multipl...

The effect of adsorbent dose and initial concentration on removing the azo-anionic dyes Congo Red andtartrazine present in a synthetic aqueous solution was studied using natural cellulose (CC) modified cationic (MCC) from coconut mesocarp. Three levels dosage (5, 8 12 mg/L) (40, 70 100 were used. Cetyl trimethyl ammonium chloride (CTAC) used as modifying agent. TGA DSC showed that extracted goo...

P-glycoprotein (P-gp), the product of the MDR1 (multidrug resistance) gene, is a transmembrane efflux pump for different lipophilic compounds, including many anticancer drugs and fluorescent dyes. We have previously reported that the efflux of fluorescent dyes from lymphoid cells of human bone marrow was directly correlated with the cellular P-gp content. In the present study, we show that huma...

Serum proteins of pregnant rats were analyzed by paper electrophoresis following administration of the teratogenic disazo dyes trypan blue, Evans blue, Niagara blue 4B, Niagara sky blue 6B, Congo red, and Niagara blue 2B. Sera were obtained from blood taken by cardiac puncture just before dye injection, 48 hours after dye injection, and again at autopsy. All of the dyes tested caused a reductio...

Acrylamide/itaconic acid (AAm/IA) hydrogels containing different quantities of itaconic acid have been irradiated with g radiation. The hydrogels were used in an experiment concerning the adsorption of cationic dyes such as Basic Blue 9, Basic Violet 1 and Basic Blue 12. In the experiments of the adsorption of dyes from their synthetic aqueous solutions, type S adsorption isotherms were found. ...

A series of novel bis(beta-cyclodextrin)s tethered with organoselenium linkers, i.e., 6,6'-(o-phenylene-diseleno)-bridged bis(beta-cyclodextrin) (2), 6,6'-[2,2'-diselenobis(benzoyloxy)]-bridged bis(beta-cyclodextrin) (3), and 6,6'-[2,2'-diselenobis[2-(benzoylamino)ethylamino]]-bridged bis(beta-cyclodextrin) (4), were synthesized from beta-cyclodextrin (1). The inclusion complexation behavior of...

Dyes wastewater produced during leather processing caused serious environmental pollution. Anionic dyes are always vital crisis in waste treatment. Removal of anionic dyes from tannery wastewater before their discharge into the environment is important for health and environment safety. The use of low-priced and biodegradable adsorbents could be a good method to minimize the environmental impac...

Dyes are threat to aquatic as well as human life. These are often introduced in the water bodies from textile or paper industries with improper treatment. Chemical treatments for dye decolorization are quite costly; another disadvantage is decolorization of these dyes is not complete. The bacterial flora in the effluent of textile industries is continuously exposed to dyes. Few of this might be...