1. Biophysics Graduate Group, University of California, Davis, California 95616, United States
2. Department of Dermatology, School of Medicine, University of California Davis, Sacramento, California 95817, United States
3. Earth Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
4. Department of Orthopedic Surgery, University of California Davis Medical Center, Sacramento, California 95817, United States
5. Department of Chemistry, University of California, Davis, California 95616, United States