Funding for this research was provided by:
National Natural Science Foundation of China (U1401244 and 21374025)
RELATED DATA
COPYRIGHT AND LICENSING
: The Royal Society of Chemistry has an exclusive publication licence for this journal
PEER REVIEW METHOD
: Single-blind
PUBLICATION HISTORY
: Received 2 December 2015; Accepted 29 December 2015; Accepted Manuscript published 29 December 2015; Advance Article published 11 January 2016; Version of Record published 2 February 2016