mPEG-Cholesterol胶束的合成、表征及其在疏水药物递送中的应用研究
参考文献:两亲性mPEG-胆固醇高共轭物的转化成、胶束化及在姜黄素递送中的app微信链接://dspace.nitrkl.ac.in/dspace/handle/2080/3725小说作品:普拉丹、艾斯瓦娅·帕特尔、萨比塔节选:恶性肿瘤是亚洲*潜藏的肠道疾病,至今已有并未实现杀灭根治。不计其数实验介绍技术设备人员和科学技术设备家就已提出者了几样原则 来杀灭恶性肿瘤,即整合*原则和建立多重药剂媒介,如脂质体、纳米技术设备粒状、胶束等。表中,整合物胶束对于药剂递送媒介及其稳固性更大、CMC 更低、可溶性高,溶于水的性更稳、粒度小和生物学相融性更稳而受人特别关注。方便将 PEG 基胶束配置成疏水药剂媒介,.我能够缩属于合法分解了两亲性 mPEG-固醇共轭物。在在使用 1H NMR、FTIR、HRMS 光谱图介绍对分解的整合物外壁层亲水性剂做好了定量探讨一下。能够红外光谱能够 说光和荧光法介绍了这么多分解外壁层亲水性剂的胶束化的行为。发掘上面的标准网络管理体系的 CMC 在微摩尔规模内。以姜黄素为模式药剂,实验介绍了在在使用配置的稳固胶束做好疏水药剂的参入和递送。与水物料中的姜黄素不同于,姜黄素在胶束物料中的稳固性很高。计算方式计算出来的药剂额定短路电流采用率为 72%,可与许多胶束标准网络管理体系相类似。能够 XRD 介绍印证了药剂的参入。采用 SEM 技术设备介绍了外壁层形貌。从 DSC 热介绍图能够 查出,额定短路电流姜黄素的胶束的稳固性低于未额定短路电流的胶束。药剂挥发释放出的身材曲线印证了药剂的快速挥发释放出,这对恶性肿瘤*至关极为重要。还实验介绍了受损细胞精力和*癌亲水性。从得到 的总体经济结杲看下,.我配置的 mPEG-固醇胶束标准网络管理体系被发掘一种很有发展前途且高效的药剂递送媒介。Cancer is a deadliest illness worldwide which is still not conquered. Several approaches have been made by various researchers and scientists to eradicate it by combined therapeutic modalities and introduction of number of drug carriers like liposomes, nanoparticles, micelles etc. Among them polymeric micelles as a drug delivery carrier has gained much more attention because of its greater stability, lower CMC, solubility, small size and biocompatibility. In an attempt to formulate PEG-based micelle as hydrophobic drug carrier, we have synthesized amphiphilic mPEG-Cholesterol conjugates by condensation method. The synthesized polymeric surfactants were characterised using 1H NMR, FTIR, HRMS spectral analysis. Micellization behaviour of these synthesized surfactants were analysed by UV-Vis and fluorescence method. The CMC of the above systems are found to be in the micro-molar range. Incorporation and delivery of hydrophobic drug using the formulated stable micelles was studied using curcumin as a model drug. The stability of curcumin was found to be very high in the micellar medium compared to the curcumin in aqueous medium. Drug loading efficiency was calculated and found to be 72% which can be comparable to the other micellar system. From the XRD analysis, the drug incorporation was confirmed. Surface morphology was analysed by using SEM technique. From the DSC thermograms, the stability of the curcumin loaded micelle was found to be higher than the unloaded micelle. Drug release profile confirmed a sustained release of drug which is vital for the cancer therapy. The cell viability and anticancer activity was also studied. From the overall results obtained, our formulated mPEG-Cholesterol micellar system found to be very promising and effective as drug delivery vehicles.



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