1. Physical Electronics, Incorporated, 18725 Lake Drive East, Chanhassen, Minnesota 55317, Medtronic, Incorporated, 710 Medtronic Parkway LT130, Minneapolis, Minnesota 55432, National Institute of Standards and Technology, 100 Bureau Drive MS8371, Gaithersburg, Maryland 20899, SurModics, Incorporated, 9924 West 74th Street, Eden Prairie, Minnesota 55344, and ULVAC-PHI, Incorporated, 370 Enzo, Chigasaki City, Kanagawa 253-8522, Japan