Zhengzhi Mu, Chemical Engineering, Umich, Ann Arbor, MI; Key Laboratory of Bionic Engineering of Ministry of Education, Jilin University, Changchun, China; Biointerfaces Institute, Umich, Ann Arbor, MI and Nicholas Kotov, Department of Chemical Engineering, University of Michigan, Ann Arbor, MI; Bioinstitute Interfaces, University of Michigan, Ann Arbor, MI