Joong-Yeon Cho, Kyeong-Jae Byeon, Hyoungwon Park, Jinseung Kim, Hyeong-Seok Kim and Heon Lee*
* Corresponding author: Heon Lee heonlee@korea.ac.kr
Nanoscale Research Letters 2011, 6:578 doi:10.1186/1556-276X-6-578
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