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包裹在生物水凝胶中的非离子表面活性剂囊泡用于可调节地递送植物抗毒素白藜芦醇。

Niosomes encapsulated in biohydrogels for tunable delivery of phytoalexin resveratrol.

作者信息

Machado Noelia D, Fernández Mariana A, Häring Marleen, Saldías César, Díaz David Díaz

机构信息

Instituto de Investigaciones en Físico-Química de Córdoba (INFIQC-CONICET), Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria X5000HUA Córdoba Argentina.

Institute of Organic Chemistry, University of Regensburg Universitätstrasse. 31 93040 Regensburg Germany

出版信息

RSC Adv. 2019 Mar 8;9(14):7601-7609. doi: 10.1039/c8ra09655d. eCollection 2019 Mar 6.

Abstract

A series of biohydrogels based on mixtures of kappa-carrageenan (κ-carrageenan, κ-C) and gelatin were evaluated as potential soft delivery vehicles for the encapsulation and subsequent release of non-ionic surfactant vesicles (niosomes) loaded with resveratrol (RSV). The niosomes were prepared using a mixture of amphiphilic lipids Tween 80 and Span 80 in water. The results showed that RSV-niosomes did not significantly affect the hydrogelation properties of the biopolymer mixture. Moreover, drug release experiments from biohydrogels containing RSV-niosomes were successfully carried out under simulated gastrointestinal conditions. The RSV-niosomal liberation profiles from hydrogels were fitted using first order kinetics, Higuchi, Korsmeyer-Peppas and Weibull drug release models, showing the prevalence of diffusion mechanisms in each case. In addition, the RSV release was easily tuned by adjusting the total concentration of κ-C : gelatin. Interestingly, the niosomal-hydrogel system was also found to prevent the -to- photoisomerization of RSV.

摘要

评估了一系列基于κ-卡拉胶(κ-C)和明胶混合物的生物水凝胶,作为包裹负载白藜芦醇(RSV)的非离子表面活性剂囊泡(niosomes)并随后释放的潜在软递送载体。使用两亲性脂质吐温80和司盘80在水中的混合物制备niosomes。结果表明,RSV-niosomes对生物聚合物混合物的水凝胶化性质没有显著影响。此外,在模拟胃肠道条件下成功进行了含RSV-niosomes的生物水凝胶的药物释放实验。水凝胶中RSV-niosomal的释放曲线采用一级动力学、Higuchi、Korsmeyer-Peppas和Weibull药物释放模型拟合,表明每种情况下扩散机制占主导。此外,通过调整κ-C与明胶的总浓度可以轻松调节RSV的释放。有趣的是,还发现niosomal-水凝胶系统可防止RSV的顺反异构化。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b985/9061210/d2f5af406567/c8ra09655d-f1.jpg

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