Ya Wang, Zhiming Liao, Hongyi Xu, Faxian Xiu, Xufeng Kou, Yong Wang*, Kang L Wang, John Drennan and Jin Zou*
* Corresponding authors: Yong Wang y.wang4@uq.edu.au - Jin Zou j.zou@uq.edu.au
Nanoscale Research Letters 2011, 6:624 doi:10.1186/1556-276X-6-624