As another part of my graduate work, I collaborated closely with Peter Lenz, an then-iterant theorist, on his first foray into experimental science. Together we discovered how to tune the surface chemistry of poly(dimethylsiloxane) (PDMS) such that supported bilayer membranes, supported lipid monolayers, intact vesicles, or no lipids would spontaneously adsorb to the surface. The paper describing our observations appeared in Langmuir. Subsequently, Atul Parikh, Andy Shreve, and co-workers made very similar observations in self-assembled monolayers of n-octadecylsiloxanes.