1. Centre for Protolife Research and Centre for Organized Matter Chemistry School of Chemistry University of Bristol Bristol BS8 1TS UK
2. Department of Biomedical Engineering MOE Key Laboratory of Biomedical Engineering Zhejiang Provincial Key Laboratory of Cardio-Cerebral Vascular Detection Technology and Medicinal Effectiveness Appraisal Zhejiang University 310027 Hangzhou P. R. China
3. School of Materials Science and Engineering Shanghai Jiao Tong University Shanghai 200240 P. R. China
4. Max Planck-Bristol Centre for Minimal Biology School of Chemistry University of Bristol Bristol BS8 1TS UK