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Wahab R, Kim YS, Mishra A, Yun SI, Shin HS.Wahab R, et al.Nanoscale Res Lett. 2010 Aug 1;5(10):1675-81. doi: 10.1007/s11671-010-9694-y.Nanoscale Res Lett. 2010.PMID: 21076675Free PMC article.