NONLINEAR ACOUSTICAL PROPERTIES IN AQUEOUS BIOMATERIALS

摘要

The ultrasonic velocity and adiabatic compressibility are the fundamental parameters used to determine the number of thermo-acoustical parameters. The volume expansivity is used to evaluate reduce volume, fractional free volume, repulsive exponent of intermolecular potential, Moelwyn-Hughes parameter, lattice Gruneisen parameter, Bayer's nonlinearity parameter and average Gruneisen parameter have been evaluated in aqueous glycine, L-arginine and L-methionine with various concentrations at temperature range 293K to 313K. The nonlinear variations of these parameters have been used to explain the molecular interactions, anharmonicity and structural information in aqueous biomaterials.