Dead dried Chlorella vulgaris was studied in terms of its performance in binding divalent copper, cadmium, and lead ions from their aqueous or 50% v/v methanol, ethanol, and acetone solutions. The percentage uptake of cadmium ions exhibited a general decrease with decrease in dielectric constant values, while that of copper and lead ions showed a general decrease with increase in donor numbers....

The analogy between the restricted primitive model and capacitor circuits, originally described decades ago for Mean Spherical Approximation, is explored to demonstrate its transferability in linearized electrolyte theories. On this basis, we offer an explanation of why treating salt diameter as a free adjustable parameter blurs differences theories calculation mean ionic activity coefficients....

The acidity constants of H(R —M P)~, where R —MP: = 4-nitrophenyl phosphate (NPhP2 ). phenyl phosphate (PhP2 ) and D-ribose 5'-m onophosphate (RibM P2 ). and the stability constants of the binary C u (R -M P ) com plexes w'ere determined by potentiometric pH titrations in aqueous solution and in 20. 30, 40 and 50% (v/v) dioxane-water mixtures. The solvent influence on the corresponding equilibr...

The capacitance of monolayer-protected gold nanoclusters (MPCs), C(MPC), in solution has been theoretically reconsidered from an electrostatic viewpoint, in which an MPC is considered as an isolated charged sphere within two dielectric layers, the intrinsic coating monolayer, and the bulk solvent. The model predicts that the bulk solvent provides an important contribution to C(MPC) and influenc...

IniB-the main external virulence factor of the bacterium Listeria monueytogenes- contains seven parallelB-strands at its concave face with a patches of five exposed aromatic amino acids as a hot spot for host receptor(Met) binding. For better understanding of energetic and physicochemical pmpendes, (u)folding transition,binding affinity and makmetic shielding censors of JAB-CRP-II-sheet ab hull...

We have investigated the dielectric anomalies associated with spin-ordering transitions in the tetragonal spinel Mn3O4 using thermodynamic, magnetic, and dielectric measurements. We find that two of the three magnetic ordering transitions in Mn3O4 lead to decreases in the temperature-dependent dielectric constant at zero applied field. Applying a magnetic field to the polycrystalline sample lea...

equilibria of the reaction of molybdenum(vi) with l-aspartic acid (asp) and l- glutamic acid(glu) have been studied by spectrophotometric measurements in mixed solvent systems at an ionicstrength of 0.2 mol/dm3 sodium perchlorate, employed (15, 20, 25, 30± 0.1°c) at ph ranges of 3.2to 5.5 with a high ratio of ligand to metal. the stability constants of the complexes and theresulting free energy...

The cycloaddition of azomethine ylides to [60]fullerene (C60) has been studied in ortho-dichlorobenzene (o-DCB) by evaluating the impact an ionic liquid (IL) additive. solvent effect addressed activation parameters and boosting microwave (MW) induced dielectric heating. IL additive plays a twofold role stabilizing dipolar ylide intermediate favoring retro-cycloaddition at high temperature regim...

The effect of solvent polarity on the quality of self-assembled n-octadecanethiol (C18SH) on Cu surfaces was systematically analyzed using first-principles calculations. The results indicate that the adsorption energy for C18SH on a Cu surface is -3.37 eV, which is higher than the adsorption energies of the solvent molecules. The higher adsorption energy of dissociated C18SH makes the monolayer...