Fig. 7
Confocal microscopy images of ADSCs differentiated for 3 weeks in the presence of 0.4 mg/mL anatase and rutile TiO2 NPs (a–i). ADSCs were stained for actin filaments (green) and lipid droplets (red). ADSCs control differentiated for 1 weeks (a), ADSCs differentiated for 1 weeks with 0.4 mg/mL anatase (b) and rutile (c) TiO2 NPs. ADSCs control differentiated for 2 weeks (d), ADSCs differentiated for 2 weeks with 0.4 mg/mL anatase (e) and rutile (f) TiO2 NPs. ADSCs control differentiated for 3 weeks (g), ADSCs differentiated for 1 weeks with 0.4 mg/mL anatase (h) and rutile (i) TiO2 NPs. j Adiponectin secretion after 1, 2 and 3 weeks of differentiation with 0.4 mg/mL anatase and rutile TiO2 NPs and control