Figure 5From: Development of flagella bio-templated nanomaterials for electronics TiO 2 –coated diatom frusule. (a) Scheme for the PLL-mediated deposition of TiO2 on the diatom frustule biosilica. (b) SEM image of bare diatom frustule. (c) SEM image of TiO2 –coated diatom frusule. Reprinted with permission from ref. 48, Copyright © Cambridge University Press 2011.Back to article page