1. Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, Hubei 430074, China
2. Interdepartmental Program in Biomolecular Science and Engineering, University of California Santa Barbara, Santa Barbara, California 93106, United States
3. Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, California 93106, United States
4. Center for Bioengineering, University of California Santa Barbara, Santa Barbara, California 93106, United States