Seminar: Optofluidics in Biological and Chemical Sensing Published January 23, 2013 By Seminars Alice Yuze Sun of the National Institutes of Health will present a seminar, “Optofluidics in Biological and Chemical Sensing,” at 2 p.m., on Thursday, Jan. 24, in Dillman 320. Sun is a faculty candidate in the Department of Biomedical Engineering.