1. Frontier Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
2. School of Chemical Engineering and Australian Centre for NanoMedicine, University of New South Wales, Sydney, NSW 2052, Australia
3. State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300350, P. R. China