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. 2014 May 6;11(94):20131152. doi: 10.1098/rsif.2013.1152

Figure 2.

Figure 2.

(a) Representative SXRF ‘flyscan’ map showing areas of calcium (blue) and titanium (red), scale bar, 100 µm. (b) SXRF scan of an individual cell showing calcium (blue) and titanium (red) counts, scale bar, 10 µm. (c) SXRF scan of an individual cell showing titanium, scale bar, 10 µm. The shaded area is the region of interest for the spectral sum of titanium counts. (d) Spectral sum of titanium counts found in a single cell. (e) Bar graph showing heterogeneity of concentrations of TiO2 nanospheres internalized by SK-BR-3 cells.