Jung S Kim, Hyun W Jeong, Wonbae Lee, Bo G Park, Beop M Kim* and Kyu B Lee*
* Corresponding authors: Beop M Kim bmk515@korea.ac.kr - Kyu B Lee kblee@korea.ac.kr
Nanoscale Research Letters 2012, 7:430 doi:10.1186/1556-276X-7-430
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