Ultrasonic absorption measurements in the range 0.5--56 MHz, and measurements of velocity at 8.87 MHz, were made in collagen suspensions in which molecular integrity was preserved, in a range of concentrations 0.07--0.7% by weight, at 10 and 20 degrees C. Absorption and velocity values, per unit concentration, exhibited by collagen are much greater in magnitude than those exhibited by globular proteins.
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Goss et al. (1980) studied this question.
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