Figure 8

Section A-A of the relief of human buccal epithelium cell and a schematic representation of the traveled path of different sizes particles: 1—100 nm in diameter, 2—320 nm in diameter, and 3—5 µm in diameter.

Section A-A of the relief of human buccal epithelium cell and a schematic representation of the traveled path of different sizes particles: 1—100 nm in diameter, 2—320 nm in diameter, and 3—5 µm in diameter.