Figure 2.

SEM images of cells seeded on the nanodot arrays. NIH-3T3 cells were seeded on a flat silicon surface, 10-nm nanodot array (10 nm), 50-nm nanodot array (50 nm), 100-nm nanodot array (100 nm), and 200-nm nanodot array (200 nm). The cells were harvested at 24 h (Day 1), 48 h (Day 2), 72 h (Day 3), and 96 h (Day 4) after seeding. SEM images were taken. Representative images are shown:atop view,bside view