Ploypailin Yongsiri, Sukum Eitssayeam, Gobwut Rujijanagul, Somnuk Sirisoonthorn, Tawee Tunkasiri and Kamonpan Pengpat*
* Corresponding author: Kamonpan Pengpat kamonpan.p@cmu.ac.th
Nanoscale Research Letters 2012, 7:136 doi:10.1186/1556-276X-7-136
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