Fig. 6. The elemental compositions of the e-TiO2-NPs suspensions (1% w/w) without or with the presence of the food matrix during each digestive phase. Note: a similar tendency was observed in the presence of the food matrix. The EDX technique was used as a semi-qualitative method to reveal the elemental compositions of the specimens. The results show that the presence of Ti element was observed in the specimens in great amounts.
