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SAEC engulf CoO and La2O3 nanoparticles. SAEC were treated for either 6 or 24 h with (A) CoO or (B) La2O3 nanoparticles at 0.0, 5.0, 25.0, or 50.0 ug/ml administered dose. SAEC were then fixed with Karnovsky’s fixative, stained with osmium and imaged with a transmission electron microscope. Particles are identified with arrows. Images represent n = 3.
