1. Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai 200237, P. R. China
2. East China Sea Fisheries Research Institute, Chinese Fisheries Academy of Fishery Science, 300 Jungong Road, Shanghai 200090, P. R. China
3. Division of Theoretical Chemistry and Biology, School of Biotechnology, KTH Royal Institute of Technology, SE-10691 Stockholm, Sweden