Fig. 1From: Assessment of in vitro particle dosimetry models at the single cell and particle level by scanning electron microscopyRepresentative 3 keV SE SEM image of A549 cells and intercellular regions after deposition of 100 nm particles for 4 h. The image was acquired at a tilt angle of 52°. Particles on top of a selected cell are marked in red for better visibility. Arrows indicate particles in intercellular regions. SE secondary electrons. Scale bar: 10 µmBack to article page