Abstract

In spite of good sun protection characteristics, nanocrystalline TiO₂ and ZnO widely used as inorganic UV filters can display a negative effect on skin. Nanocrystalline cerium dioxide was proposed as a promising component of sun protection cosmetics, however, no quantitative comparison of sun protection characteristics of CeO₂ with other metal oxides was carried out until now. In this work, we experimentally determined for the first time the values of sun protection factor and UVA protection factor for CeO₂ nanoparticles in accordance with the State Standard ISO 24443-2016 and compared them with characteristics of TiO₂ and ZnO. Effect of size factor on CeO₂ sun protection characteristics has been found.

中文翻译：

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纳米二氧化铈防晒特性的比较分析

摘要

尽管具有良好的防晒特性，但被广泛用作无机紫外线滤光片的纳米TiO ₂和ZnO仍会对皮肤产生负面影响。提出了纳米二氧化铈作为有前景的防晒化妆品成分，但是，到目前为止，尚未对CeO ₂与其他金属氧化物的防晒特性进行定量比较。在这项工作中，我们首次根据国家标准ISO 24443-2016通过实验确定了CeO ₂纳米颗粒的防晒系数和UVA防护系数的值，并将其与TiO ₂和ZnO的特性进行了比较。已经发现尺寸因子对CeO ₂防晒特性的影响。