Ning Han, Jared J Hou, Fengyun Wang, SenPo Yip, Hao Lin, Ming Fang, Fei Xiu, Xiaoling Shi, TakFu Hung and Johnny C Ho*
* Corresponding author: Johnny C Ho johnnyho@cityu.edu.hk
Nanoscale Research Letters 2012, 7:632 doi:10.1186/1556-276X-7-632
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