Funding for this research was provided by:
National Key R&D Program of China (2016YFC0101301)
Basic Research and Frontier Technology Projects of Beibei District, Chongqing, China (2019-5)
Technology Innovation and Application Demonstration Research Project of Chongqing, China (cstc2018jscx-msybX0084)
Article History
Received: 23 April 2019
Accepted: 5 September 2019
First Online: 13 September 2019
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.