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A Comparative Study of Cerium(III) and Cerium(IV) Phosphates for Sunscreensстатья
Дата последнего поиска статьи во внешних источниках: 15 мая 2024 г.
- Авторы: Kozlova Taisiya O., Vasilyeva Darya N., Kozlov Daniil A., Kolesnik Irina V., Teplonogova Maria A., Tronev Ilya V., Sheichenko Ekaterina D., Protsenko Maria R., Kolmanovich Danil D., Ivanova Olga S., Baranchikov Alexander E., Ivanov Vladimir K.
- Журнал: Molecules
- Том: 29
- Номер: 9
- Год издания: 2024
- Издательство: MDPI
- Местоположение издательства: Basel, Switzerland
- Первая страница: 2157
- Последняя страница: 2157
- DOI: 10.3390/molecules29092157
- Аннотация: Crystalline cerium(III) phosphate (CePO4), cerium(IV) phosphates, and nanocrystallineceria are considered to be promising components of sunscreen cosmetics. This paper reports on astudy in which, for the first time, a quantitative comparative analysis was performed of the UVshieldingproperties of CePO4, Ce(PO4)(HPO4)0.5(H2O)0.5, and CePO4/CeO2 composites. Both thesun protection factor and protection factor against UV-A radiation of the materials were determined.Ce(PO4)(HPO4)0.5(H2O)0.5 was shown to have a sun protection factor of 2.9, which is comparablewith that of nanocrystalline ceria and three times higher than the sun protection factor of CePO4.Composites containing both cerium dioxide and CePO4 demonstrated higher sun protection factors(up to 1.8) than individual CePO4. When compared with the TiO2 Aeroxide P25 reference sample,cerium(III) and cerium(IV) phosphates demonstrated negligible photocatalytic activity. A cytotoxicityanalysis performed using two mammalian cell lines, hMSc and NCTC L929, showed that CePO4,Ce(PO4)(HPO4)0.5(H2O)0.5, and nanocrystalline ceria were all non-toxic. The results of this comparativestudy indicate that cerium(IV) phosphate Ce(PO4)(HPO4)0.5(H2O)0.5 is more advantageous foruse in sunscreens than either cerium(III) phosphate or CePO4/CeO2 composites, due to its improvedUV-shielding properties and low photocatalytic activity.
- Добавил в систему: Колесник Ирина Валерьевна
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