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首页> 外文期刊>Journal of Physical Organic Chemistry >Synthesis of high fluorescent silica hybrid materials by immobilization of orange peel extract in silica-silsesquioxane matrix
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Synthesis of high fluorescent silica hybrid materials by immobilization of orange peel extract in silica-silsesquioxane matrix

机译：橘皮提取物固定在硅倍半氧烷基质中合成高荧光度二氧化硅杂化材料

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Sol-gel chemistry can be easily modified to the changing needs of society to produce fine-tuned sol-gelnanostructured materials for relevant applications. In this context, there is an increasing need for natural andversatile raw materials as well as biocompatible compounds that could be extensively used as biomarkers forbioimaging in diagnosis or therapy. Silica-based materials are widely used in the field of biomedicine due to theirchemical inertness and biocompatibility. In the present paper, orange peel extract was immobilized inside inorganicsilica and hybrid silica-silsesquioxane polymeric networks. Silica and organo-modified silica matrices were synthes-ized through a templated sol-gel route of TEOS and an organosilsesquioxane (octaisobutyltetracyclo(7.3.3.1511)octasiloxane-endo-3,7-diol), with D-glucose as template, and for comparison a non-ionic surfactant (tetraethyleneglycol mono-hexadecyl ether) was also used. The bioactive properties of the molecules from orange peelextract were preserved after immobilization in both silica and silica-silsesquioxane networks. Moreover, thefluorescence properties were amplified by 10-20 times more than the native orange peel extract. The structuralproperties of the final materials have been studied by FT-IR, UV-Vis-NIR, and fluorescence spectroscopy.Dynamic light scattering measurements and transmission electron microscopy were used to estimate the size andmorphology of the hybrid materials with orange peel extract immobilized in silica networks.
机译：溶胶-凝胶化学可以轻松地适应社会不断变化的需求，以生产用于相关应用的微调溶胶-凝胶纳米结构材料。在这种情况下，对天然和多功能原材料以及生物相容性化合物的需求日益增长，这些原材料可广泛用作诊断或治疗中生物成像的生物标记。二氧化硅基材料因其化学惰性和生物相容性而广泛用于生物医学领域。在本文中，橘皮提取物被固定在无机二氧化硅和杂化二氧化硅-倍半硅氧烷聚合物网络内部。通过TEOS和有机倍半硅氧烷（八异丁基四环（7.3.3.1511）八硅氧烷-内-3,7-二醇）的模板化溶胶-凝胶路线，以D-葡萄糖为模板合成二氧化硅和有机改性的二氧化硅基质。比较而言，还使用了非离子表面活性剂（四乙二醇单十六烷基醚）。固定在二氧化硅和二氧化硅-倍半硅氧烷网络中后，保留了橙皮提取物分子的生物活性。而且，荧光性质比天然橙皮提取物放大了10-20倍。通过FT-IR，UV-Vis-NIR和荧光光谱研究了最终材料的结构性能。使用动态光散射测量和透射电子显微镜来估计固定有二氧化硅的橙皮提取物的杂化材料的尺寸和形态。网络。

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