Lihong Li, Jinqian Zhang, Yang Yang, Qiang Wang, Li Gao, Yanlong Yang, Tao Chang, Xingye Zhang, Guoan Xiang, Yongmei Cao, Zujin Shi, Ming Zhao and Guodong Gao*
* Corresponding author: Guodong Gao gguodong@fmmu.edu.cn
Nanoscale Research Letters 2013, 8:100 doi:10.1186/1556-276X-8-100