Ultrasonic Study of Collagen Solutions

Ultrasonic propagation characteristics of collagen solutions are reported. The concentration dependences of the various ultrasonic parameters of the solvent (acetic acid) and the solute (collagen) are compared. The ultrasonic velocities for acetic acid and collagen are comparable, while the attenuation is very high in collagen solutions. The adiabatic compressibility and the free length in collagen solutions decrease with increasing concentration. The relaxation time increases rapidly with concentration of collagen, unlike that for acetic acid.