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. 2014 Mar 25;11:13. doi: 10.1186/1743-8977-11-13

Table 4.

Ti/P content in the three epithelial models a

Cell model Ti/P b
Caco-2 monoculture
0.020 ± 0.012
Caco-2/HT29-MTX coculture
0.108 ± 0.047
Caco-2/RajiB coculture 0.183 ± 0.039

aTi and P content were measured locally, by μPIXE, in Ti-rich regions detected in Ti distribution maps, in cells exposed to 50 μg/mL of TiO2-NPs for 24 h. bRatio of titanium (Ti) and phosphorous (P) concentrations.

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