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In view of the presence of Na + and K + ions as metal complexes of proteins and nucleic acids in our body and their physiological importance, the ultrasonic velocity and its derived parameters were employed to investigate the solute-solvent and ion-solvent interactions in leucine-aqueous urea, NaCl-aqueous urea, and KCl-aqueous urea systems. The presence of short-lived clusters of...
Sugars stabilise proteins against extremes of pH and heat denaturation. This was studied by means of density, ultrasonic velocity and viscosity measurements of the following systems (i) ovalbumin-phosphate buffer (pH 2.4, 5.2, 7.0 and 8.9) and (ii) ovalbumin-maltose-phosphate buffer (pH 2.4, 5.2, 7.0 and 8.9) systems as functions of concentration and temperature. The partial specific volumes ( ...
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