Microscopic Studies of Various Sizes of Gold Nanoparticles and Their Cellular Localizations

Figure 5

AFM imaging of 10 nm gold nanoparticles into HEp-2 cells after 1 (a), 2 (b), 4 (c), 12 (d), and 24 hr (e) incubations. All images are 45 by 45 microns.

(a)

(b)

(c)

(d)

(e)