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Biomimetic synthesis of titanium dioxide. SEM micrographs of (A) TiO2 product formed by catalysis with purified sponge silicatein filaments and (B) titania particles made by diatom silaffins and zoom in (C). Scale bars: (A) 500 nm, (B) 20 μm, (C) 5 μm. Image A reproduced from [197] with permission from American Chemical Society. Images in B are adapted from [196] with permission from John Wiley and Sons.
