ABSTRACT

Abstract-Recent work in the literature based on wettability has shown both hydrophobic and hydrophilic characteristics of the surface of the human skin depending on the quantity of lipids or sebum in the skin surface areas. In this work, we compare the adhesion energy determined by the wettability method and the contact mechanics method which we developed. The contact mechanics method is based on a micro-indentation test with a low load (20-30 mN). The evolution of adhesion according to various experimental parameters such as the normal load, contact time, indentation speed and liquid treatment to skin was studied. For the liquid treatment applied to skin, our approach allows to follow variations in physico-chemical and skin mechanical properties as a function of time after the application.