Mikko Haataja, PhD, assistant professor in the Department of Mechanical and Aerospace Engineering and the Princeton Institute for the Science and Technology of Materials (PRISM) at Princeton University, will discuss "Heterogeneous Lipid Bilayers: Evolving Microstructures in Biology” at the Spring 2008 Fluid Dynamics Seminar Series on April 16 at 1 p.m. in Cullimore Hall, Room 611.