1. The State Key Laboratory of Bioreactor Engineering; East China University of Science and Technology; Shanghai 200237 China
2. Key Laboratory for Ultrafine Materials of Ministry of Education; East China University of Science and Technology; Shanghai 200237 China
3. Institute for Biosystems and Biotechnology Research and Fischell Department of Bioengineering; 5115 Plant Sciences Building College Park MD 20742 USA
4. Institute of Nano and Biopolymeric Materials; School of Materials Science and Engineering; Tongji University; 4800, Caoan Road Shanghai 201804 China