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Selected organ retention of 65Zn over time. Liver (A), skeletal muscle (B), bone (C), and total body (D) retention of 65Zn over 7 days post-IV- injection of uncoated or silica-coated 65ZnO nanoparticles. The x-axes are in logarithmic scale. Data are mean ± SE, n=5–7 rats/group.
