1. Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Molecular Science, Shanxi University, Taiyuan 030006, P. R. China
2. China Institute for Radiation Protection, Taiyuan 030006, P. R. China
3. Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Biotechnology, Shanxi University, Taiyuan 030006, China
4. Faculty of Science, McMaster University, Hamilton, L8S 4K1, ON, Canada
5. School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China