Feiyue Xing*, Jiongkun Wang, Mingqian Hu, Yu Yu, Guoliang Chen and Jing Liu*
* Corresponding authors: Feiyue Xing tfyxing@jnu.edu.cn - Jing Liu tjliu@jnu.edu.cn
Nanoscale Research Letters 2011, 6:455 doi:10.1186/1556-276X-6-455
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