Skin protection against UV radiation using thin films of cerium oxide
Por:
Ortiz, E., Martinez-Gomez, L., Valdes-Galician, J. F., Garcia, R., Anzorena, M., Martinez de la Escalera, L.
Publicada:
1 ene 2019
Resumen:
In this work, we evaluated the efficiency of cerium oxide as sunscreen
using titanium oxide as standard comparison material. Geant4 software
was used to perform numerical simulation, we calculated the radiation
dose that ultraviolet radiation deposits in a skin sample as a function
of thin film thickness of the sunscreens. We found that in the interval
between 5 and 15 nm of the thin film thickness and for wavelengths
between 160 and 400 nm, cerium oxide has the potential to reduce the
radiation dose more than 10% with respect to the same thickness band of
titanium oxide. Using thin films of cerium oxide and titanium oxide with
same thicknesses and greater than 45 nm, the difference in the
attenuation of the radiation dose for both materials is less than 1%.
The results lead us to propose cerium oxide as an alternative material
to titanium oxide for the manufacture of sunscreens.
Filiaciones:
Ortiz, E.:
Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, 62210, Mexico
Univ Nacl Autonoma Mexico, Inst Ciencias Fis, Cuernavaca 62210, Morelos, Mexico
Martinez-Gomez, L.:
Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, 62210, Mexico
Univ Nacl Autonoma Mexico, Inst Ciencias Fis, Cuernavaca 62210, Morelos, Mexico
Valdes-Galician, J. F.:
Instituto de Geofísica, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México, 04510, Mexico
Univ Nacl Autonoma Mexico, Inst Geofis, Coyoacan 04510, Ciudad De Mexic, Mexico
Garcia, R.:
Instituto de Geofísica, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México, 04510, Mexico
Univ Nacl Autonoma Mexico, Inst Geofis, Coyoacan 04510, Ciudad De Mexic, Mexico
Anzorena, M.:
Instituto de Geofísica, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México, 04510, Mexico
Univ Nacl Autonoma Mexico, Inst Geofis, Coyoacan 04510, Ciudad De Mexic, Mexico
Martinez de la Escalera, L.:
Corrosión y Protección (CYP), Ciudad de México, Mexico
CyP, Ciudad De Mexico, Mexico
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