Hongmei Zhu, Gang Sha, Jiangwen Liu, Hongwei Liu, Cuilan Wu*, Chengping Luo, Zongwen Liu*, Rongkun Zheng and Simon P Ringer
* Corresponding authors: Cuilan Wu cuilanwu2010@gmail.com - Zongwen Liu zongwen.liu@sydney.edu.au
Nanoscale Research Letters 2012, 7:300 doi:10.1186/1556-276X-7-300
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