Human and bovine lactoferrins and their derived N-terminal peptides were giardicidal in vitro. Fe3+, but not Fe2+, protected trophozoites from both native lactoferrin and peptides, although the latter lack iron-binding sites. Other divalent metal ions protected only against native lactoferrin. Log-phase cells were more resistant to killing than stationary-phase cells. These studies suggest that...

Consideration of the changes in free energy shows that assumed initial steps reactions H2O2 with Fe2+ and Fe3+ radical theory are not consistent. The is unable to account for Fe3+-initiated decomposition or oxidations by it. In ions at high [H2O2], where O2 evolution reaches a limit, such limit foreseen model. At lower because disallowed substitution equation used, interpretation valid. It appe...

Abstract By varying the amounts of metal ions, ligands, and other reaction conditions, an organic complex with central ion as indium was successfully synthesized through solvothermal method characterized analyzed. The fluorescence properties complexes were tested, which found that these compounds have good properties. On this basis, we further applied to sensing investigated its detection It ha...

The absorption spectra of the Fe– and Ce–doped 15Na2O–15CaO–70SiO2 glasses (mol%), melted in oxidising reducing conditions, have been analysed. A repeatable set fitting parameters has developed for Ce3+ Ce4+ ions, while previously published were used Fe–ions. Ce–ions significantly decrease proportion Fe2+ions both electric– gas–melted glasses, ions content increases due to mutual redox between ...

A new bis-N,N'-(5-methylimidazol-4-ylmethyl) derivative of a 14-membered tetraazamacrocycle, L1, has been synthesized. The protonation constants of this compound and the stability constants of its complexes with divalent first-row transition metal ions and Fe3+ were determined at 298.2 K in aqueous 0.10 mol dm(-3) KNO3. Compound L1 exhibits high overall basicity, which is mainly conferred by th...

A hybrid material reduced graphene oxide based organic nanocomposite was synthesized from graphite by modified Hummers method, which is further chemically to form (rGO) and with resorcinol through a solvothermal process oxide-resorcinol (rGO-R) obtained. The materials surface morphology structural compositions were studied X-ray diffraction (XRD) scanning electron microscope (SEM) their optical...

A new pentaquinone-based chemosensor armed with phenolic moieties has been synthesized. The fluorescence behaviour of the chemosensor in the presence of different chemical inputs mimics the functions of a digital encoder.

Ibuprofen (IBU), a nonsteroidal anti-inflammatory drug, is one of the most widely used and frequently detected pharmaceuticals personal care products in water bodies. This study examined IBU degradation aquatic solutions via ferric ion activated peroxydisulfate (PDS) coupled with electro-oxidation (EC/Fe3+/PDS). The mechanisms involved three synergistic reactions EC/Fe3+/PDS system, including: ...