Copyright Published by Oxford University Press 2008.
Low magnification TEM photomicrographs—6 h. LLC-PK1 cells were treated for 6 h with media (Control), 10nM CdSe QD (CdSe), or 100nM InGaP QD (InGaP). White arrows show autophagic vacuoles, consisting of double-layered membranes containing cellular debris. Black arrows show lysosomal remnants. Magnification 5000×.