Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
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.
