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Visualization of the uptake of Aco-HSA liposomes by liver endothelial and Kupffer cells 30 min after intravenous injection. DiI-labeled liposomes (1 μmol of total lipid/100 g body weight) were injected into anesthetized rats. Endothelial (A and B) cells and Kupffer (C and D) cells were isolated and the liposomes were visualized as described in Materials and Methods. A and C phase contrast. B and D fluorescence of the same field. (Original magnification ×400.)
