1. Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, United States
2. Department of Bioengineering, University of California, Riverside, California 92521, United States
3. Department of Chemistry, University of California, Riverside, California 92521, United States
4. Department of Biochemistry, University of California, Riverside, California 92521, United States
5. Materials Science and Engineering Program, University of California, Riverside, California 92521, United States