iodine. The data presented are consistent with the formation of a covalent linkage between MAB and DNA or RNA under these mild conditions. The covalently linked MAB cannot be extracted by organic solvents that remove the physically bound MAB from the nucleic acid. A chemical linkage was further indicated by gel filtration and equilibrium dialysis of the nucleic acid:MAB complexes. Hydrolysis of...

Using styrene as raw material, potassium persulfate as an initiator, beta-cyclodextrin as a stabilizer, polystyrene microspheres were successfully prepared with nice monodisperse feature by means of soap-free emulsion polymerization method. Experimental studies were performed in detail to check the effect of the synthesis process of the microspheres, the stabilizer dosage, monomer concentration...

In this paper it is studied the ways by which the radical cation chromophore of chlorpromazine, produced through a reaction between chlorpromazine maleate and potassium persulfate in hydrochloric acid medium, can be applied in realization an evaluation method of the antioxidant activity. The chlorpromazine radical cation is a radical with biological relevance, being involved in oxidative proces...

This study focused on the effect of salinity performance a pilot-scale nanofiltration (NF) for preconcentration microcontaminants (MCs) in combination with solar photo-Fenton or photo-Fenton-like treatment their elimination from NF permeate and concentrate streams. Photo-Fenton was carried out simulator at pH 3 natural using Ethylenediamine-N, N?-disuccinic acid (EDDS) as an iron complexing age...

Dual-frequency ultrasound (DFUS) coupled with sonocatalysts has emerged to be an advanced tool for antimicrobial applications in medicine but remains scarcely studied water disinfection. In the present work, we first integrated high-frequency DFUS (120 + 1700 kHz), persulfate (S2O82−) and ZnO nano- (50 nm) microparticles (1 μm) eradicating Escherichia coli Enterococcus faecalis synthetic water....

Bio-electro-Fenton is emerging as an alternative technology for the efficient and cost-effective removal of refractory micropollutants. Though promising, there are still several challenges that limit its wide application, including acidic operating conditions (pH at 2–3), addition supporting electrolytes (e.g., Na2SO4), issue iron sludge generation. To address these challenges, a novel hybrid p...