Shan Zheng, Qing-Qing Sun*, Wen Yang, Peng Zhou*, Hong-Liang Lu and David Wei Zhang
* Corresponding authors: Qing-Qing Sun qqsun@fudan.edu.cn - Peng Zhou pengzhou@fudan.edu.cn
Nanoscale Research Letters 2013, 8:116 doi:10.1186/1556-276X-8-116
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