1. State Key Laboratory
of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
2. Northeast Normal University, Changchun 130024, P. R. China
3. Department of Food Science, Rutgers University, 65 Dudley Road, New Brunswick, New Jersey 08901, United States
4. James Franck Institute, The University of Chicago, Chicago, Illinois 60637, United States