Funding for this research was provided by:
National Natural Science Foundation of China (31741109)
Natural Science Foundation of Hunan Province (2018JJ2145, 2018JJ2146)
Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province (17XKY002, 17XKY011)
Institute for NanoScience and NanoTechnology, Sharif University of Technology (17XKY012)
Article History
Received: 14 July 2019
Accepted: 23 October 2019
First Online: 8 November 2019
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.