JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 133, no. 13, page. 4762 - 4765, 2011-04-06
NANOSCALE, vol. 3, no. 4, page. 1724 - 1730, 2011-02
ACS NANO, vol. 5, no. 12, page. 9658 - 9667, 2011-12