| 邓同铭 王倩 梁欢 张家彬 宋鹤梁 姚鹏 晏为力.以新型表面活性剂Pa-Brij78为基础的两种载药纳米系统的构建[J].,2016,16(1):40-44 |
| 以新型表面活性剂Pa-Brij78为基础的两种载药纳米系统的构建 |
| Construction of Two Drug Loading Nano-systems Based on the NewSurfactant Pa-Brij78 |
| |
| DOI： |
| 中文关键词: Pa-Brij78 药物传递 磷酸钙 胶束 纳米晶体 |
| 英文关键词: Pa-Brij78 Drug delivery Calciumphosphate Micelle Nanocrystal |
| 基金项目:四川省高校科研创新团队建设计划项目（14TD0050） |
|
| 摘要点击次数: 1458 |
| 全文下载次数: 0 |
| 中文摘要: |
| 目的：探究新型表面活性剂分子Pa-Brij78 在药物传递方面的应用。方法：利用Brij78 合成Pa-Brij78，通过薄膜水化法得到
3 mM包载姜黄素的Pa-Brij78 胶束水溶液，并通过共沉淀法用磷酸钙将胶束矿化的流程建立磷酸钙胶束复合纳米颗粒药物传递
系统；利用Pa-Brij78 作为稳定剂，与紫杉醇按不同的紫杉醇/ 表面活性剂质量比例溶于氯仿后用氮气吹干，真空干燥2-4 h，薄膜
物水化30 min后超声20 min 的流程建立纳米晶体Pa-PNC。运用粒度仪和扫面电子显微镜对两种纳米系统进行表征。结果：磷酸
钙胶束复合纳米颗粒粒径小于200 nm，纳米颗粒外貌都是球形且表面粗糙对姜黄素的载药率达17 %，包封率大于90%，构建得
到的不同比例的纳米晶体Pa-PNC，其粒径也都小于200 nm，Pa-PNC 纳米晶体是棒状的，且Pa-PNC 的载药率达50 %。结论：本
课题组合成的新型表面活性剂分子Pa-Brij78 能够构建得到两种药物传递系统，在药物传递系统方面具有一定的应用潜力。 |
| 英文摘要: |
| Objective:To investigate the application of the new surfactant molecular Pa-Brij78 in the field of drug delivery systems.Methods:The calcium phosphate coated micelle nanoparticles were fabricated as follows: the Pa-Brij78 molecular was synthesized
using the Brij78 molecular. The micelle solutions and curcumin loaded micelle solution of Pa-Brij78 were prepared by the thin film hydration
method. Then, the calcium phosphate coated micelle nanoparticles were fabricated through the mineralization of the micelle by
the co-precipitation method. The Pa-PNC nanocrystals were constructed as follows: paclitaxel (PTX) and Pa-Brij78 (used as stabilizer)
were first dissolved in chloroform with different weight ratios of PTX/ surfactant, and then co-precipitated by evaporating the chloroform
with nitrogen gas. Residual chloroform remained was removed under a vacuumfor 2-4 h. The lipid film was allowed for hydration for 30
min and the suspensions were sonicated for 20 min. Particle analyzer and SEM were used in the characterizeation of the nano-systems.Results:The particle size of calciumphosphate coated micelle nanoparticles were all less than 200 nm. The loading efficiency of curcumin
could reach 17 %, and the encapsulation efficiency were above 90 %. The nanoparticles were spherical and their surfaces were rough.
The sizes of nanocrystals (Pa-PNC) were less than 200 nm, the loading efficiency could reach 50 %, and the appearances of Pa-PNCs
were rod.Conclusion:The Pa-Brij78 could be fabricated into two kinds of drug delivery systemby different methods. And the Pa-Brij78
has the potential to apply in the field of drug delivery. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
