Haohua Li, Chaolun Liang, Meng Liu, Kuan Zhong, Yexiang Tong*, Peng Liu* and Greg A Hope
* Corresponding authors: Yexiang Tong cesdhx@mail.sysu.edu.cn - Peng Liu pengliupd@hotmail.com
Nanoscale Research Letters 2008, 4:47-53 doi:10.1007/s11671-008-9201-x
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