Self-rolled microsystems: A promising route toward fully functionalized and low cost micro-capillaries

Abstract : Spontaneous rolling occurs when there is a nonnal stress inhomogeneity in a thin film. Typically, this occurs in bilayer systems where each layer is subject to a different strain (figure a). We focus on the application ofthose selfrolled microsystems to lab-on-chip technology. Hence, we propose new methods to induce the spontaneous rolling ofpolymeric films, more precisely polydimethylsiloxane (PDMS).