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. Author manuscript; available in PMC: 2015 Jan 1.
Published in final edited form as: Wiley Interdiscip Rev Nanomed Nanobiotechnol. 2013 Oct 3;6(1):61–79. doi: 10.1002/wnan.1244

Figure 10. Dependence of UV-visible light attenuation on TiO2 nanoparticle aggregate size.

Figure 10

With decreasing particle size UV protection shifts to shorter wavelengths. Blue line, 20 nm; green line, 50 nm; and red line, 100 nm. Particles with average aggregate size of ~ 50 nm offer high UVB attenuation and lower visible light scattering but less UVA absorption. Reprinted with permission from Wang and Tooley, 2011 [154].