1. Department of Biological Engineering, Jinan University, Huangpu Road West 601, Tianhe District, Guangzhou 510632, P. R. China
2. Department of Optoelectronic Engineering, Jinan University, Huangpu Road West 601, Tianhe District, Guangzhou 510632, P. R. China
3. Guangzhou Institutes of Microbiology, Jian Tashan Road 1, Science City, Luogang District, Guangzhou 510530, P. R. China