1. Weintraub Center for Reconstructive Biotechnology, Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, Los Angeles, California 90095-1668, United States
2. California NanoSystems Institute, University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095-7227, United States
3. Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive South, Los Angeles, California 90095-1569, United States
4. Department of Bioengineering, University of California, Los Angeles, 420 Westwood Plaza, 5121 Engineering V, Los Angeles, California 90095-1600, United States
5. Division of Diagnostic and Surgical Sciences, School of Dentistry, University of California, Los Angeles, Los Angeles, California 90095-1668, United States
6. Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, California 90095-7227, United States
7. Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, California 90095-1592, United States
8. Department of Materials Science and Engineering, University of California, Los Angeles, 410 Westwood Plaza, Los Angeles, California 90095-1595, United States