1. School of Life Science Chongqing University Chongqing 400044 P. R. China
2. Division of Nanomaterials and Chemistry Hefei National Laboratory for Physical Sciences at the Microscale CAS Center for Excellence in Nanoscience Hefei Science Center of CAS Department of Chemistry Institute of Biomimetic Materials & Chemistry University of Science and Technology of China Hefei 230026 P. R. China
3. Key Laboratory of Biorheological Science and Technology Ministry of Education Chongqing University Chongqing 400044 P. R. China
4. Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University 21 Nanyang Link Singapore 637371 Singapore