Supramolecular phenoxy-alkyl maleate-based hydrogels and their enzyme/pH-responsive curcumin release
作者:Bijari Anil Kumar、Rati Ranjan Nayak
DOI:10.1039/c8nj05796f
日期:——
Low-molecular-weight gelators that self-assemble via non-covalent interactions have been attracting significant attention due to their good biocompatibility, low toxicity, inherent biodegradability as well as their convenience of design. Enzymatically digestible and pH-sensitive hydrogels play an important role in controlled drug delivery applications. In the present study, we synthesized four simple
通过非共价相互作用自组装的低分子量胶凝剂由于其良好的生物相容性,低毒性,固有的生物降解性以及设计的方便性而受到了广泛的关注。酶可消化且对pH敏感的水凝胶在受控药物递送应用中起着重要作用。在本研究中,我们合成了四个简单的具有不同疏水链长度(C 6 –C 12)的马来酸苯氧基烷基酯两亲物。在磷酸盐缓冲液中检测了四种两亲物的胶凝能力。其中,C 10和C 12的马来酸酯链长分别在最小胶凝浓度(MGC)为1.6和1.3%w / v时显示出胶凝能力。这些水凝胶化剂显示出可以捕获水分子的牢固的三维交联网络。使用差示扫描量热法(DSC),扫描电子显微镜,密度泛函理论(DFT)计算,X射线衍射和流变学研究对获得的超分子水凝胶进行了全面表征。更重要的是,姜黄素(一种疏水性药物)被封装(1%w / v)到凝胶核中,其随后的释放是通过脂酶(生物刺激)诱导的从凝胶到溶胶的转变而实现的。另外,载有药物的水凝胶表现出p