9:00 AM. 360. Development of Photoacoustic Nanosensor for the Detection of Granzyme B in Response to Natural Killer Cell Immunotherapy.Brendan Barlow1, Tasneem Mukarrama2, Anika Kulkarni1, Ana Sandoval-Castellanos, PhD2, Myeongsoo Kim3, Robert Canter, M.D.2, Jinhwan Kim, Ph.D.4 1University of California Davis, 2UC Davis, 3Georgia Institute of Technology, 4UC Davis Health, University of California, Davis