Research Article

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

Figure 4

SEM imaging of 10 nm gold nanoparticles into HEp-2 cells after 1 (a), 2 (b), 4 (c), 12 (d), and 24 hr (e) incubations.
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(a)
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(b)
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(c)
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(d)
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(e)