Volumetric behaviour of amino acids and their group contributions in aqueous lactose solutions at different temperatures

Intermolecular interactions of α-amino acids and glycyl dipeptides with the drug domiphen bromide in aqueous solutions analyzed by volumetric and UV–vis spectroscopy methods

“…The trend can probably be regarded to larger hydrophobic/ non-polar character of the side chain of the former, which causes greater electrostriction at the terminal charged groups and hence increase in V 2;/ values. Similar results were found for amino acids and/or dipeptides in aqueous sodium carboxylate solutions [14][15][16], ionic liquid [18], methanoic acid [20], sodium fluoride [22], cetyltrimethylammonium bromide solutions [23], furosemide [10], and so on.…”

“…(2) are summarized in Table 2. Using the obtained V 2;/ values and those in water taken from earlier publications [17,19,20], Fig. 1 was plotted (taking glycine in DB aqueous solution as an example).…”

“…where V 2;/ (in water) is the standard partial molar volume for the amino acids/dipeptides in water and taken from earlier publications [17,19,20]. It can be seen from Table 3 and Fig.…”

Volumetric, ultrasonic and UV absorption studies on interactions of antibiotic drug chloramphenicol with glycine and its dipeptide in aqueous solutions at T = (288.15–318.15) K

“…Plots of experimental and literature values[45][46][47][48] of densities for (glycine + water) mixtures at different temperatures.…”

Effect of potassium phosphate buffer on volumetric behavior of glycine in aqueous solutions at different temperatures

“…The phosphate buffer system, important in intracellular fluid, consists of conjugate acid-base pair H 2 PO 4 − , as proton donor, and HPO 4 2− , as proton acceptor tends to resist change in pH in the range of (6.1 to 7.7) and would therefore be effective in providing buffering power in intracellular fluid whose pH is in the range of (6.9 to 7.4). Extensive work has been done on thermodynamic properties of amino acids and peptides in aqueous and mixed aqueous solutions of various additives which provide information about solute-solvent and solute-solute interactions operating in these systems [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]. However, these studies were not focused on physiological conditions or biological environment, i.e.…”