1. Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE)School of Chemical Engineering and TechnologyTianjin University Tianjin 300350 P. R. China
2. School of Chemical Engineering and Australian Centre for NanoMedicineUniversity of New South Wales Sydney NSW 2052 Australia
3. Department of Biological and Environmental EngineeringCornell University Ithaca NY 14853 USA
4. CAS Key Laboratory of Nano‐Bio InterfaceSuzhou Institute of Nano‐Tech and Nano‐BionicsChinese Academy of Sciences Suzhou 215123 P. R. China