Subramani Thiyagu, Balasubramaniam P Devi, Zingway Pei*, Yu-Hung Chen and Jun-Chin Liu
* Corresponding author: Zingway Pei zingway@dragon.nchu.edu.tw
Nanoscale Research Letters 2012, 7:171 doi:10.1186/1556-276X-7-171
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