FIG 4.

Nano-scanning auger micrographs depicting the effect of aspirin and ibuprofen on the outer and inner ultrastructure of cells. Cells from the different experimental conditions, i.e., nontreated, aspirin-treated, and ibuprofen-treated cells, could be differentiated on the basis of their appearances. For example, nontreated cells appeared to be rough with spiky protuberances, whereas aspirin- and ibuprofen-treated cells were less rough. The images were taken at depths of 0 nm and 60 nm following etching of thin slices off the cell using an argon laser at a sputter rate of 15 nm/min.