Biocidal Silver and Silver/Titania Composite Films Grown by Chemical Vapour Deposition

Figure 9

(a) Killing of E. coli on a TiO₂ film on glass • with control sample ∘. (b) Killing of E. coli on Ag layer on glass (note: minimum test time 20 minutes) • with control sample ∘. (c) Killing of E. coli on TiO₂ layer over Ag on glass • with control sample ∘.

(a)

(b)

(c)