1. Materials Science & Technology Division, Los Alamos National Laboratory, Mail Stop E-549, Los Alamos, New Mexico 87545; Department of Chemical and Biological Engineering, University of Colorado, CB 424, Boulder, Colorado 80309-0424; State Key Laboratory of Chemical Resource Engineering and College of Material Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029 PR China; and Department of Craniofacial Biology, University of Colorado Denver, School of Dental Medicine, Aurora...