Zhi-Yuan Ye, Hong-Liang Lu*, Yang Geng, Yu-Zhu Gu, Zhang-Yi Xie, Yuan Zhang, Qing-Qing Sun, Shi-Jin Ding and David Wei Zhang
* Corresponding author: Hong-Liang Lu honglianglu@fudan.edu.cn
Nanoscale Research Letters 2013, 8:108 doi:10.1186/1556-276X-8-108