High frequency ultrasound measurements on a translucent thin bioglass, based on Si, Ca, Na: Study of the distribution of elastic modulus

Abstract In this work, an ultrasonic high frequency focused sensor (100 MHz) has been used to study the variation of the elastic modulus of a thin bioglass element, based on Si, Ca, Na. In fact, physical functionalization of materials may play a role in defining the properties of interfaces of the surface depending of the physico-chemical characteristics of the materials used. The study is restricted to the characterization by an ultrasonic method of the elastic modulus profile of the bioglass element during the final phase of processing: before and after thermal treatment. The initial objective is to produce an ultrasonic map of the element under investigation, such as a substrate, prior to further tests involving adhesion of biological cells in order to try to understand the relationship between the distribution of the measured mechanical properties and the adhesion phenomenon.