in this work, hydrogel nanocomposites were synthesized by solution polymerization of acrylic acid (aa) and itaconic acid (ia) in the presence of cotton fabric. ammonium persulfate (aps) was used as the polymerization initiator in the presence of a crosslinker, methylene bisacrylamide (mba). insertion of ag followed by reduction of ag+ cations results in a hydrogel nanocomposite. the structure a...

Using lead oxide, uranyl nitrate and ultrapure water, seven hydrothermal synthesis experiments were performed with Pb:U molar ratios ranging from 1:1 to 1:10. Reaction products were characterized by powder and single-crystal X-ray diffraction. Two novel Pb uranyl oxide hydrates were found, with structural formulae Pb2(H2O)[(UO2)10UO12(OH)6(H2O)2] and Pb0.5[(UO2)4O2(OH)5](H2O)4 (Pb-poor fourmari...

In this paper, potentiometry and calorimetry were used to determine the thermodynamics of interaction between risedronate four bivalent metal cations, namely: Mg2+, Zn2+, Pb2+, Cu2+ in aqueous NaCl solutions at different ionic strengths T = 298.15 K. The data analysis allowed us ascertain that main species formed MLH2, MLH, ML M2L; however scarcely soluble precipitated acidic pH values, 4 7 dep...

Waste building sludge (WBS) originating in the production of concrete prestressed poles (CSW) and technical stone (TSW) used original Fe-modified forms (CSWFe, TSWFe) was tested as an environmentally friendly cheap sorbent selected cations (Cd2+, Pb2+, Cs+) anions (AsO43?, PO43?, CrO42?) from water. The experiments were performed with 0.1 0.5 mmol·L?1 model solutions a batch manner at laborator...

In the title coordination polymer, [Ag(C(10)H(6)NO(2))](n), the Ag(I) cation is coordinated by two O atoms and one N atom from three 6-quinoline-carboxyl-ate anions in a distorted T-shaped AgNO(2) geometry, in which the O-Ag-O angle is 160.44 (9)°. The 6-quinoline-carboxyl-ate anion bridges three Ag(+) cations, forming a nearly planar polymeric sheet parallel to (101). The distance between Ag(+...

Among divalent cations, the ionophore monensin shows high activity and selectivity for the transport of lead ions (Pb2+) across phospholipid membranes. When coadministered to rats that were receiving meso-dimercaptosuccinate for treatment of Pb intoxication, monensin significantly increased the amount of Pb removed from femur, brain, and heart. It showed a tendency to increase Pb removal from l...

The electrical conductivity of solid and molten Li2S04 —Ag,S0 4 has been measured for different concentration values. Density measurements of molten Li2S04 , Ag2S04 and equimolar (Li, Ag) 2S0 4 show that the system can be considered ideal. The equivalent conductivity of molten (Li, Ag) 2S0 4 can be calculated from the conductivities of the pure salts by assuming that the cations are moving in g...

Previously we have shown that the fluorescence of the dihydropyridine calcium antagonist felodipine provides an accurate means of monitoring the formation of an allosterically potentiated conformer of calmodulin (Mills, J. S., and Johnson, J. D., (1985) Biochemistry 24, 4897-4903). Characteristic of this conformer is the abolition of cooperativity among the two felodipine-binding sites on calmo...