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CROSSCHECK

: This document is CrossCheck deposited

RELATED DATA

: Supplementary Information

IDENTIFIERS

: Huayun Xu (ResearcherID)

COPYRIGHT AND LICENSING

: The Royal Society of Chemistry has an exclusive publication licence for this journal

PUBLICATION HISTORY

: Received 3 December 2014; Accepted 17 January 2015; Accepted Manuscript published 19 January 2015; Advance Article published 28 January 2015; Version of Record published 12 February 2015