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. 2014 Jan 9;9(1):e84986. doi: 10.1371/journal.pone.0084986

Figure 7. CaCo-2 adhesion and invasion efficiency of LM2 and LM9 strains in absence or in presence of TiO2 NPs at different concentrations.

Figure 7

Values were expressed as percentage of control untreated bacteria. Both adhesion and invasion were performed in triplicate and three independent experiments were carried out for each strain. Asterisks denote statistically significant values compared to control bacterial cells (*p<0.05; **p<0.01; ***p<0.001).