Jihyun Moon, Seung J Baik*, Byungsung O and Jeong C Lee*
* Corresponding authors: Seung J Baik sjbaik@hknu.ac.kr - Jeong C Lee jclee@kier.re.kr
Nanoscale Research Letters 2012, 7:503 doi:10.1186/1556-276X-7-503
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