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(A) Schematic drawings of non-covalently functionalized SWNT-PEG2000, SWNT-PEG5400, SWNT-PEG2000-RGD, and SWNT-PEG5400-RGD with DOTA-64Cu. (B) MicroPET images of two mice at various time points post tail-vein injection of 64Cu-labeled SWNT-PEG2000 and SWNT-PEG5400, respectively. (C) MicroPET images of mice. Reprinted with permission from ref (187). Copyright 2007 Nature Publishing Group.
