Gel Based Sunscreen Containing Surface Modified TiO₂ Obtained by Sol-Gel Process: Proposal for a Transparent UV Inorganic Filter

Figure 6

Storage () and loss () moduli as a function of frequency of the (a) gel based formulation and, also, formulations containing (b) 15% of commercial TiO₂ and (c) 15% and (d) 25% of P0.05H1 TiO₂ nanoparticles.

(a)

(b)

(c)

(d)