Nanolayered composite with enhanced ultraviolet ray absorption properties from simultaneous intercalation of sunscreen molecules.
Nanolayered composite with enhanced ultraviolet ray absorption properties from simultaneous intercalation of sunscreen molecules.
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DOI：
10.2147/ijn.s171390
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发表时间：
2018
影响因子：
8
通讯作者：
Taufiq-Yap YH
中科院分区：
文献类型：
--
作者：
Megat Nabil Mohsin S;Hussein MZ;Sarijo SH;Fakurazi S;Arulselvan P;Taufiq-Yap YH
通过将二苯甲酮4（B4）和Eusolex® 232（EUS）同时插层到Zn/Al水滑石（LDH）中，研究了LDH作为多种紫外线吸收剂的潜力。通过共沉淀法在不同的B4和EUS的摩尔比制备的纳米复合材料。在等摩尔比下，所得纳米复合材料表现出的插层选择性是优先的EUS。然而，插层阴离子的选择性比被证明是能够通过在合成过程中调整预期的客人的摩尔比被改变。以B4：EUS摩尔比3：1（ZEB [3：1]）合成的双客体纳米复合材料显示出B4：EUS =53：47的插层选择性比。使用粉末X射线衍射仪监测ZEB（3：1）的性质，以显示21.8 nm的基底间距。直接注射质谱，傅立叶变换红外光谱，紫外-可见光谱证实了双插入到双客体纳米复合材料的层间区域的两个阴离子。双客体纳米复合材料ZEB（3：1）对人真皮成纤维细胞的细胞毒性研究显示，直到25 μg/mL才显示出显著的毒性。总的来说，研究结果证明了在LDH宿主中紫外线吸收剂组合物的成功定制。
The potential of layered double hydroxide (LDH) as a host of multiple ultraviolet-ray absorbers was investigated by simultaneous intercalation of benzophenone 4 (B4) and Eusolex® 232 (EUS) in Zn/Al LDH. The nanocomposites were prepared via coprecipitation method at various molar ratios of B4 and EUS. At equal molar ratios, the obtained nanocomposite showed an intercalation selectivity that is preferential to EUS. However, the selectivity ratio of intercalated anions was shown to be capable of being altered by adjusting the molar ratio of intended guests during synthesis. Dual-guest nanocomposite synthesized with B4:EUS molar ratio 3:1 (ZEB [3:1]) showed an intercalation selectivity ratio of B4:EUS =53:47. Properties of ZEB (3:1) were monitored using powder X-ray diffractometer to show a basal spacing of 21.8 Å. Direct-injection mass spectra, Fourier transform infrared spectra, and ultraviolet–visible spectra confirmed the dual intercalation of both anions into the interlayer regions of dual-guest nanocomposite. The cytotoxicity study of dual-guest nanocomposite ZEB (3:1) on human dermal fibroblast cells showed no significant toxicity until 25 μg/mL. Overall, the findings demonstrate successful customization of ultraviolet-ray absorbers composition in LDH host.