Figure 1. Photo-Fenton treatment of TiO₂ (rutile) particles contaminated with the RML scrapie strain. 0.2 g of TiO₂ were incubated with 10% w/v RML mouse brain homogenate and were then treated with 56 μg mL⁻¹ Fe³⁺, 600 μg mL⁻¹ h⁻¹, UV-A, pH: 3.5. (A) SDS-PAGE, following AgNO₃ staining of adsorbed proteins after treatment with photo-Fenton at the indicated time points (min). (B) western blotting of adsorbed PrP after treatment with photo-Fenton at the indicated time points (min). Primary antibody: 12F10, visualization: West Femto substrate (Pierce). Arrow: 32.5 kDa relative molecular mass marker.