In this work, two cryogels with the key monomers methacrylic acid and 2-acrylamido-2-methyl-1-propansulfonic (named AAC SAC, respectively) various functional groups were used as adsorbents for removal of cesium strontium ions from aqueous solutions. Kinetics, equilibrium, column studies carried out including experiments in different water matrices (ultrapure, tap, river water) comparison to com...

Bisphosphonates (BPs) constitute a class of drugs used for the treatment calcium- and bone-related disorders, including osteoporosis, Paget’s disease, etc. The presence anionic phosphonate groups endows them with ability to act as ligands metal ions. As result, synthesis complexes or coordination polymers various structural motifs can be accomplished. In this work, 3rd generation BP drug risedr...

Ca2+ currents (ICa) were recorded from the neurosecretory terminals of the crab X-organ-sinus gland under voltage-clamp conditions. ICa was detectable at command potentials above -40mV, with maximum currents at approximately +20mV. No differences were observed between current-voltage (I/V) relationships from holding potentials of -50 or -90mV, indicating that there were no low-voltage-activated...

The effect of Sr2+ substitution on the morphology, crystal structure, and optical properties of double perovskite oxide Ba2-xSrxZnWO₆ (x = 0.00, 0.25, 0.50, 0.75, 1.00) were investigated. Scanning electronic microscopy demonstrated that all samples have similar microstructure morphology but differ in the range of grain sizes. X-ray diffraction measurements indicated that these materials crystal...

This paper reports for the first time on new laminar quaternary orthorhombic heterometallic tellurides SrLnCuTe3, fabrication of which has been a challenge until this work. Data crystal structure complete series strontium chalcogenides SrLnCuCh3 (Ch = S, Se, Te). Single crystals compounds were synthesized from elements by halogenide-flux method at 1070 K. The are crystallizing in two space grou...

The abilities of various divalent cations to enter the cytoplasm of mouse lacrimal acinar cells was examined under resting and agonist-stimulated conditions, by monitoring their effects on the fluorescence of cytosolic fura. In vitro Ni’+, Co2+, and Mn2* quenched the furafluoresceAce, whereas Sr’+, Ba”, and La3+ produced an excitation spectrum and maximum brightness similar to Ca’+. Stimulation...

Several divalent cations were studied as agonists of a Ca2+-activated K+ channel obtained from rat muscle membranes and incorporated into planar lipid bilayers. The effect of these agonists on single-channel currents was tested in the absence and in the presence of Ca2+. Among the divalent cations that activate the channel, Ca2+ is the most effective, followed by Cd2+, Sr2+, Mn2+, Fe2+, and Co2...

To accomplish their life cycle, lentiviruses make use of host proteins, the so-called cellular cofactors. Interactions between host cell and viral proteins during early stages of lentiviral infection provide attractive new antiviral targets. The insertion of lentiviral cDNA in a host cell chromosome is a step of no return in the replication cycle, after which the host cell becomes a permanent c...

Lecithin vesicles containing different cations were prepared by sonication and characterized. When the concentration of the divalent cations in the buffer was increased from 1 mM to about 100 mM the cation-concentration inside of the vesicles did not increase proportional to the outside concentration, but showed a saturation behaviour. The efflux of various cations mediated by ionophore A23187 ...

Density functional theory (DFT) at the generalised gradient approximation level is employed within the periodic electrostatic embedded cluster method (PEECM) to model the brucite (0001) surface. Three representative studies are then used to demonstrate the reliability of the PEECM for the description of the interactions of various ionic species with the layered Mg(OH)2 structure, and its perfor...