Wrinkling instabilities in monolayers and bilayers made of chiral lipids


Sahraoui Chaieb, Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, 2324 Mechanical Engineering Laboratory, 1206 West Green Street, MC-244, Urbana, IL 61801
I will talk about the buckling instabilities and pattern formation during the buckling of 2D monolayers made of chiral lipids. I will discuss the transition from a striped phase at low temperature to a disordered phase characterized by a softer splay modulus when the chain melting temperature is crossed. This transition is also sensitive to the boundary-conditions at the core of the domains and at their edges. In 3D these lipids display a ribbon phase in bulk and when these lipids are polymerized a plethora of crumpled surfaces emerges depending on the amount of polymer created in the surface.