Abstract

In this work, we analyzed the advantages of using silver nanoparticles (AgNPs) synthesized with natural extracts in ultraviolet–visible spectroscopy (UV-Vis) protective cream. The photodegradation properties of the new UV-Vis protective milk show an increase in its absorption band compared to AgNP-free cream. Previous to the study of the AgNPs mixed within the body milk, we studied the optical UV-Vis properties of extracts at different collection times, as they can influence the spectral range of UV-Vis absorption of the hybrid compound (AgNPs + natural extract). Shape and size of the AgNPs differs from the type of reducing agent as well as the concentration of silver nitrate used. We also compared the cytotoxicity in cell lines and the antibacterial effect of the AgNPs without and with organic coating. All these studies showed that we obtained hybrid sun-protective body milk with a high degree of solar protection and with low cytotoxicity at a cellular level, thus improving its protective properties. The synthetized hybrid compound could be a possible cost-affordable alternative for the market.

摘要

在这项工作中，我们分析了在紫外线-可见光谱（UV-Vis）防护霜中使用与天然提取物合成的银纳米颗粒（AgNPs）的优势。与不含AgNP的乳霜相比，新型UV-Vis防护乳的光降解性能显示其吸收带增加。在研究掺入母乳中的AgNPs之前，我们研究了提取物在不同收集时间的光学UV-Vis特性，因为它们会影响杂化化合物（AgNPs +天然提取物）的UV-Vis吸收光谱范围。AgNP的形状和大小与还原剂的类型以及所用硝酸银的浓度不同。我们还比较了不使用有机涂层和使用有机涂层的细胞系的细胞毒性和AgNPs的抗菌作用。所有这些研究表明，我们获得了高度防晒和在细胞水平上具有低细胞毒性的混合型防晒身体乳，从而改善了其防护性能。合成的杂化化合物可能是市场上价格可承受的替代品。