Funding for this research was provided by:
National High Technology Research and Development Program of China (2012AA020505)
National Natural Science Foundation of China (81470875)
Science and Technology Planning Project of Guangdong Province (2014B020227002)
Science and Technology Planning Project of Guangdong Province (2015B020229002)
Science and Technology Planning Project of Guangdong Province (2015B090903069)
Natural Science Foundation of Guangdong Province (2014A030312013)
Educational Commission of Guangdong Province (C1031904)