1 Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, 904 Furnas Hall, Buffalo, NY 14260-4200, United States. Electronic address: blainepf@buffalo.edu.
2 Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, United States; Department of Chemistry and Biochemistry, University of California, Los Angeles, United States; Department of Bioengineering, University of California, Los Angeles, United States. Electronic address: yitang@ucla.edu.