Wen-he Wu, Min Li, Yue Wang, Hou-xian Ouyang, Lin Wang, Ci-xiu Li, Yu-chen Cao, Qing-he Meng* and Jian-xin Lu*
* Corresponding authors: Qing-he Meng qum209@mail.usask.ca - Jian-xin Lu jxlu313@163.com
Nanoscale Research Letters 2012, 7:658 doi:10.1186/1556-276X-7-658
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