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Novel glucosamine hydrochloride-rectorite nanocomposites with antioxidant and anti-ultraviolet activity

机译：具有抗氧化和抗紫外线活性的新型葡糖胺盐酸盐-锂蒙脱石纳米复合材料

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摘要

In this study, an attempt was made to prepare novel D-glucosamine hydrochloride-rectorite (DGH-REC) nanocomposites with improved antioxidant and anti-ultraviolet activity via the solution-intercalation method. The structure and morphology of DGH-REC nanocomposites were characterized by XRD, TEM, ~(13)C CP/MAS NMR, FT-IR, XPS and SEM. The results showed that the interlayer distance of REC was enlarged after intercalation of DGH; the largest value reached 11.76 nm, and in this case exfoliation of the REC layer was observed. Moreover, most strong crystals of DGH were greatly disrupted while two other weak crystals of DGH were stronger after intercalation of DGH into REC. More importantly, it was found that DGH-REC nanocomposites showed pronounced antioxidant activity, in contrast with DGH, and the nanocomposites had anti-ultraviolet capacity, which was not observed in DGH. Furthermore, the nanocomposites did not show apparent cytotoxicity. Therefore, DGH-REC nanocomposites have great potential in health or functional food application as compared to DGH.
机译：在这项研究中，试图通过溶液插层方法制备具有改善的抗氧化剂和抗紫外线活性的新型D-氨基葡萄糖盐酸盐-锂蒙脱石（DGH-REC）纳米复合材料。通过XRD，TEM，〜（13）C CP / MAS NMR，FT-IR，XPS和SEM对DGH-REC纳米复合材料的结构和形貌进行了表征。结果表明，DGH插层后REC层间距离增大。最大值达到11.76nm，并且在这种情况下观察到REC层的剥离。此外，将DGH插入REC后，DGH的大多数强晶体都被严重破坏，而另外两个DGH弱晶体则更强。更重要的是，发现DGH-REC纳米复合材料与DGH相比显示出明显的抗氧化活性，并且纳米复合材料具有抗紫外线能力，这在DGH中没有观察到。此外，纳米复合材料没有显示出明显的细胞毒性。因此，与DGH相比，DGH-REC纳米复合材料在健康或功能性食品应用中具有巨大潜力。

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