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. Author manuscript; available in PMC: 2019 Mar 1.
Published in final edited form as: Food Funct. 2018 Mar 1;9(3):1475–1491. doi: 10.1039/c7fo02038d

Figure 5. Live/Dead fluorescent images of Caco-2/HT29-MX co-cultures exposed to ZnO nanoparticles.

Figure 5

Cells were exposed to low, medium and high doses of ZnO NP in DMEM in digests for four hours prior to the cell viability assessment A) Control DMEM, B) control digest, C) low DMEM, D) low digest, E) medium DMEM, F) medium digest, G) high DMEM, H) high digest. Low, medium and high refer to the dose of ZnO, nanoparticles, where low = 9.7 × 10−6 mg/mL, medium = 9.7 × 10−4 mg/mL, and high = 9.7 × 10−2 mg/mL. Digest refers to ZnO nanoparticles that have been subjected to a simulated gastric and intestinal digestion.