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. 2024 Sep 22;25(18):10168. doi: 10.3390/ijms251810168

Figure 1.

Figure 1

Evaluation of acute PE MNPs exposure on morphological characteristics cellular viability and proliferation in human bronchial epithelial cells (BEAS-2B) and human alveolar epithelial cells (A549). (A) Representative phase contrast images of BEAS-2B and A549 cells treated for 24 h with 0.01% Tween20 (UNT) or PE MNPs at 25 μg/mL (PE 25) and 100 μg/mL (PE 100). Bar: 20 μm. (B) The effect of PE MNPs at (24, 48, and 72 h) on BEAS-2B and A549 cell viability as determined via MTT assay and expressed in O.D. value. (C) The effect of PE MNPs at 24, 48 and 72 h on BEAS-2B and A549 cell proliferation, as determined via viable cell counts. (B,C) Mean value ± standard deviation (SD) was obtained from three independent experiments, each performed in triplicate.