Гидратационные свойства композитных материалов на основе наноразмерного гидроксиапатита и белковых молекул

Abstract

The state of water in nanocomposites modeling the bone tissue and created on the basis of nanodimensional hydroxyapatite and polypeptides (gelatin, albumin) by the method of ¹H NMR spectroscopy is studied. The state and thermodynamic parameters of bound water was determined. It is shown that water in composites can exist in strongly and weakly associated states. The maximal amount of weakly associated water is registered for composites containing albumin. It is shown that the weakly polar environment, such as chloroform, diminishes the value of bound water in nanocomposites due of the cluster state formation.