当前位置: X-MOL 学术Eur. Polym. J. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Synthesis and characterization of water-soluble β-cyclodextrin polymers via thiol-maleimide ‘click’ chemistry
European Polymer Journal ( IF 6 ) Pub Date : 2020-04-01 , DOI: 10.1016/j.eurpolymj.2020.109603
Mengke Zhang , Xinlin Wei , Xueming Xu , Zhengyu Jin , Jinpeng Wang

Abstract Water-soluble β-cyclodextrin polymers (β-CDPs) employing thiolated β-cyclodextrin (β-CD-(SH)7) and maleimide-functionalized hydroxypropyl-β-cyclodextrin (HPCD-AMI) were successfully synthesized in aqueous solution via thiol-maleimide ‘click’ chemistry. The intermediate and final synthesized β-CDPs were characterized by Fourier transform infrared spectroscopy (FT-IR), 1H nuclear magnetic resonance (1H NMR), Matrix-assisted laser desorption ionization-time of flight mass spectroscopy (MALDI-TOF), size exclusion chromatography (SEC), X-ray powder diffractometer (XRD), and thermalgravimetric analysis (TGA). It was found that the Mw of β-CDPs increased with both feed ratio of HPCD-AMI/β-CD-(SH)7 and reaction temperature. Moreover, the 1H NMR indicated that β-CDPs prepared at elevated temperature have higher degree of thiol-maleimide reaction compared to that prepared at room temperature, thereby leading to more compact star-like branched structure. Phase solubility study showed that the affinity of curcumin with β-CDPs was significantly higher than that with the native β-CD and HPβ-CD. The increase of Mw resulted in an increased or decreased complex-forming capacity, depending on the microstructure of β-CDPs. Besides, the release behavior study confirmed that β-CDPs exhibited excellent sustained-release ability for curcumin. These results suggest that the prepared β-CDPs can be a promising candidate in drug delivery and pharmaceutical application.

中文翻译:

通过硫醇-马来酰亚胺“点击”化学合成和表征水溶性β-环糊精聚合物

摘要 利用硫醇化β-环糊精(β-CD-(SH)7)和马来酰亚胺功能化的羟丙基-β-环糊精(HPCD-AMI)在水溶液中通过巯基成功合成了水溶性β-环糊精聚合物(β-CDPs)。 -马来酰亚胺“点击”化学。中间体和最终合成的 β-CDP 通过傅里叶变换红外光谱 (FT-IR)、1H 核磁共振 (1H NMR)、基质辅助激光解吸电离飞行时间质谱 (MALDI-TOF)、尺寸排阻进行表征色谱 (SEC)、X 射线粉末衍射仪 (XRD) 和热重分析 (TGA)。发现β-CDPs的Mw随着HPCD-AMI/β-CD-(SH)7的进料比和反应温度而增加。而且,1H NMR表明,与室温制备的β-CDP相比,高温制备的β-CDP具有更高的硫醇-马来酰亚胺反应程度,从而导致更紧凑的星状支化结构。相溶解度研究表明姜黄素与β-CDPs的亲和力显着高于与天然β-CD和HPβ-CD的亲和力。Mw 的增加导致复合物形成能力的增加或减少,这取决于 β-CDP 的微观结构。此外,释放行为研究证实β-CDPs对姜黄素表现出优异的缓释能力。这些结果表明制备的 β-CDPs 可以成为药物递送和药物应用的有希望的候选者。相溶解度研究表明姜黄素与β-CDPs的亲和力显着高于与天然β-CD和HPβ-CD的亲和力。Mw 的增加导致复合物形成能力的增加或减少,这取决于 β-CDP 的微观结构。此外,释放行为研究证实β-CDPs对姜黄素表现出优异的缓释能力。这些结果表明制备的 β-CDPs 可以成为药物递送和药物应用的有希望的候选者。相溶解度研究表明姜黄素与β-CDPs的亲和力显着高于与天然β-CD和HPβ-CD的亲和力。Mw 的增加导致复合物形成能力的增加或减少,这取决于 β-CDP 的微观结构。此外,释放行为研究证实β-CDPs对姜黄素表现出优异的缓释能力。这些结果表明制备的 β-CDPs 可以成为药物递送和药物应用的有希望的候选者。释放行为研究证实β-CDPs对姜黄素表现出优异的缓释能力。这些结果表明制备的 β-CDPs 可以成为药物递送和药物应用的有希望的候选者。释放行为研究证实β-CDPs对姜黄素表现出优异的缓释能力。这些结果表明制备的 β-CDPs 可以成为药物递送和药物应用的有希望的候选者。
更新日期:2020-04-01
down
wechat
bug