1. Department
of Chemistry, University of California, Irvine, California 92697, United States
2. International
Center for Materials Nanoarchitectonics, National Institute for Materials Science, Tsukuba, Ibaraki 305-0047, Japan
3. Department
of Chemical Engineering, Kyushu University, Nishi-ku, Fukuoka 819-0395, Japan
4. Therapeutic Discovery, Amgen, Inc., Thousand
Oaks, California 91320, United States