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pH-Responsive sulphonated mesoporous silica: a comparative drug release study

机译:pH-响应磺化介孔二氧化硅:比较药物释放研究

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摘要

Control of morphology and surface functionalization of mesoporous silica materials have enhanced the biocompatibility of these materials with high surface areas and total pore volumes. The functionalization of mesoporous silica materials with organic moieties exhibited controlled release and molecular recognition capabilities for drug delivery. Design of functional mesoporous silica with various mechanisms of controlled release and introduction of new characteristics is very interesting for the construction of highly selective drug carrier. Loading of procaine hydrochloride drug (PrHy) into functionalized KIT-6-SO3H and SBA-15-SO3H was investigated by a quartz crystal microbalance (QCM) technique and UV-visible spectroscopy. The release was carefully studied by systematically tuning the pH media at simulating gastric fluid without pepsin (SGF, pH 2) and simulating intestinal fluid without pancreatin (SIF, pH 7.4), as well.
机译:中孔二氧化硅材料的形态和表面官能化的控制增强了这些材料的生物相容性,具有高表面积和全孔体积。 具有有机部分的中孔二氧化硅材料的官能化表现出控制释放和药物递送的分子识别能力。 具有各种控制释放机制的功能性介孔二氧化硅和新特征引入的设计非常有趣,适用于高选择性药物载体。 通过石英晶体微稳定(QCM)技术和UV可见光光谱研究了官能化试剂盒-6-SO3H和SBA-15-SO3H和SBA-15-SO3H的普林那替辛基盐酸盐药物(PHY)。 通过在没有胃蛋白酶(SGF,pH 2)的模拟胃液(SGF,pH 2)和没有胰蛋白(SIF,pH7.4)的情况下,通过在没有胃蛋白酶(SIF,pH 7.4)的肠液中,通过系统地调整pH介质来仔细研究释放。

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