Seokjae Lee, Jaryong Koo, Gunwoo Hyung, Donghwan Lim, Donghyung Lee, Kumhee Lee, Seungsoo Yoon*, Wooyoung Kim and Youngkwan Kim*
* Corresponding authors: Seungsoo Yoon ssyoon@skku.edu - Youngkwan Kim kimyk@hongik.ac.kr
Nanoscale Research Letters 2012, 7:23 doi:10.1186/1556-276X-7-23
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