The possibility of Pb2+, Cd2+, Ni2+ and Ba2+ ions removal from aqueous solution using light expanded clay aggregate (LECA) was investigated in this work. central composite design (CCD) response surface methodology (RSM) used to optimize the operating parameters (adsorbent granulometry, absorption time initial metal concentration) reach maximum single multi-elemental solutions. After optimizatio...

Cd2+ provokes an immediate production of inositol trisphosphate and the release of Ca2+ from internal stores in human fibroblasts and some other mammalian cells. Ni2+, Co2+, Fe2+, and Mn2+ evoke the release of stored Ca2+, but are less potent than Cd2+ (apparent K0.5 = 40 nM). Zn2+ and Cu2+ competitively inhibit Ca2+ release evoked by Cd2+ without affecting Ca2+ release by hormones such as brad...

This study investigates the effect in the rat of chronic CdCl2 intoxication (500 microg Cd2+/kg, daily i.p. injection for 5 days) on renal function and the changes in tight junction proteins claudin-2, claudin-3, and claudin-5 present in rat kidney. We also studied the effect of coadministration of ZnCl2 (500 microg Zn2+/kg) during chronic CdCl2 intoxication. Our results indicate that 1) most o...

A series of hydrogels as biosorbents to remove heavy metal ions (Pb2+, Cu2+, and Cd2+) were prepared using Radix Isatidis residues material grafted with acrylic acid acrylamide. The surfaces residue/acrylic acid-co-acrylamide (RIR/AA-co-AM), residue/polyacrylamide (RIR/PAM3), residue/polyacrylic (RIR/PAA4) have a sponge-like, three-dimensional, highly microporous structure. all considerable swe...

SummaryEnvironmental pollution with heavy metals/metalloids is one of the most important environmental problems, which leads to development bioremediation strategies and search for biomarkers assess its condition. Aim. To determine sensitivity metals actinobacteria isolated from biological fouling natural shell rock mussels Odesa gulf Black Sea. Methods. Thirty-four strains were used in investi...

Supported nano zero-valent iron is receiving great attention nowadays due to its effectiveness in treating heavy metal pollutants. Therefore, this study aimed investigate the of granitic residual soil-supported (Gr-nZVI) for removal metals Pb2+, Cu2+, Co2+, Cd2+ Ni2+ and Zn2+ mixture solutions under different experimental conditions batch equilibrium tests. In study, Gr-nZVI was successfully sy...

This work deals with the comparison between three analytical techniques for the total contents analysis of heavy metals in agricultural soils polluted by copper. The soils samples are digested to clear solutions using a mixture of perchloric and hydrofluoric acids. The metals studied are copper, lead, cadmium, nickel, cobalt, zinc and manganese. Soil solutions are complex matrices and the analy...

A sensitive and simple method for simultaneous preconcentration of trace heavy metal ions in some cerealand vegetable samples has been reported. The method is based on the adsorption of Cu2+, Fe3+, Zn2+ and Pb2+on 2-(2-nitro-phenylazo)-naphthalen-1-ol (NPN) loaded on activated carbon (AC). The adsorbed metals onactivated carbon were eluted using 3 ml 4 mol L−1 nitric acid. The influences of the...