1. School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China
2. Biomedical Engineering Cockrell School of Engineering University of Texas at Austin Austin TX 78712 USA
3. Department of Anorectal Surgery Tianjin Hospital Tianjin University Tianjin 300211 China
4. Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education) Tianjin University Tianjin 300350 China
5. Department of Chemistry School of Science Tianjin University Tianjin 300350 China