LAUSR

Abstract The conformability of epidermal electronics bonded onto bio-tissue is the key element to realize long-term and real-time monitoring physiological characteristics of human body. Currently, mechanics models of the epidermal electronics conforming to the bio-tissue are only applicable for the epidermal electronics whose thickness is larger than or close to the amplitude parameter of the bio-tissue (i.e., infinitesimal deflection theory). But an analytical model with moderately large deflection theory is proposed in this paper to predict the fully conformal, partially conformal and fully non-conformal states between the epidermal electronics and the bio-tissue through energy minimization, which combines the effects of epidermal electronics and bio-tissue geometries, work of adhesion and modulus of epidermal electronics. The model is verified by the experimental observations, and thereby can provide some guidance to a general design strategy for epidermal electronics bonded onto bio-tissue.