1. Institute for Collaborative Biotechnologies; University of California; Santa Barbara California 93106-5100 USA
2. California NanoSystems Institute; University of California; Santa Barbara California 93106-5100 USA
3. Materials Research Laboratory; University of California; Santa Barbara California 93106-5100 USA
4. Department of Molecular; Cellular and Developmental Biology; University of California; Santa Barbara California 93106-5100 USA
5. LifeCel Technology, Inc.; Santa Barbara CA 93106-5080 USA