Funding for this research was provided by:
National Natural Science Foundation of China (CN) (61502208)
China Postdoctoral Science Foundation (CN) (2015M570411)
Natural Science Foundation of Jiangsu Province of China (BK20150522)
Natural Science Foundation of the Jiangsu Higher Education Institutions of China (14KJB520007)
Innovation Committee of Science and Technology of Shenzhen (JCYJ20130329154017293)
Science and Technology Program of Huizhou (2015B010002005)