首页> 外文期刊>ACS Omega >Physicochemical Characterization, Molecular Docking, and In Vitro Dissolution of Glimepiride–Captisol Inclusion Complexes
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Physicochemical Characterization, Molecular Docking, and In Vitro Dissolution of Glimepiride–Captisol Inclusion Complexes

机译:物理化学表征,分子对接和胶质脂素 - Captisol包装复合物的体外溶解

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This present study investigated the effect of Captisol, a chemically modified cyclodextrin, on the in vitro dissolution of glimepiride. We prepared glimepiride–Captisol complexes of different mass ratios (1:1, 1:2, and 1:3 w/w) by a physical mixing or freeze-drying technique, and found that complexation with Captisol enhanced the water solubility of glimepiride. Molecular docking and dynamic simulation predicted complex formation; at the same time, Fourier transform infrared spectroscopy, differential scanning calorimetry, powder X-ray diffractometry, and scanning electron microscope indicated molecular interactions that support complexation. We also found that an inclusion complex was better than a physical mixture in enhancing the complexation of glimepiride with Captisol and enhancing water solubility. Phase solubility study of the glimepiride–Captisol complex showed an A_(L)-type profile, implying the formation of a 1:1 inclusion complex. The study also revealed that pH influenced the stability of the complex because the stability constant of the glimepiride–Captisol complex was higher in distilled water of pH ~6.0 than in phosphate buffer of pH 7.2.
机译:本研究研究了CAPTISOL一种化学改性环糊精的效果对胶林植物的体外溶解。我们通过物理混合或冷冻干燥技术制备了不同质量比(1:1,1:2和1:3 W / W)的GlimePiride-Captisol复合物,并发现与Capisol的络合增强了胶质脂素的水溶性。分子对接和动态模拟预测复杂形成;同时,傅里叶变换红外光谱,差分扫描量热法,粉末X射线衍射法,扫描电子显微镜表明了支持络合的分子相互作用。我们还发现包含复合物优于一种物理混合物,以提高胶质脂醇与Capisol和增强水溶性的粘合性。胶质脂素 - Captisol复合物的相溶解度研究显示A_(L)型型材,暗示形成1:1包合物的形成。该研究还揭示了pH影响了复合物的稳定性,因为在pH〜6.0的蒸馏水中的蒸馏水稳定性常数比pH7.2的磷酸盐缓冲液更高。

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