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人工晶体学报 ›› 2025, Vol. 54 ›› Issue (6): 1013-1020.DOI: 10.16553/j.cnki.issn1000-985x.2025.0023

• 研究论文 • 上一篇    下一篇

基于SBA-15介孔氧化硅递药系统的构建及提高茴拉西坦溶出度的研究

牟涵清1(), 吕江维1,2(), 王鹏光1, 余科彻1, 高广宇1, 张文君1,2   

  1. 1.哈尔滨商业大学药学院,哈尔滨 150076
    2.抗肿瘤天然药物教育部工程研究中心,哈尔滨 150076
  • 收稿日期:2025-02-07 出版日期:2025-06-20 发布日期:2025-06-23
  • 通信作者: 吕江维,博士,副教授。E-mail:pp198259@163.com
  • 作者简介:牟涵清(2004—),女,山东省人。E-mail:764187604@qq.com
  • 基金资助:
    国家级大学生创新创业训练项目(202410240093);国家重点研发计划子课题(2022YFD1600502-23);2023年度新一轮黑龙江省“双一流”学科协同创新成果项目(LJGXCG2023-101)

Construction of Drug Delivery System Based on SBA-15 Mesoporous Silica to Improve the Dissolution of Aniracetam

MU Hanqing1(), LYU Jiangwei1,2(), WANG Pengguang1, YU Keche1, GAO Guangyu1, ZHANG Wenjun1,2   

  1. 1.School of Pharmacy,Harbin University of Commerce,Harbin 150076,China
    2.Anti Tumor Natural Drugs Engineering Research Center of the Ministry of Education,Harbin 150076,China
  • Received:2025-02-07 Online:2025-06-20 Published:2025-06-23

摘要: 为了提高难溶性药物茴拉西坦(ANI)的溶解度和溶出度,以P123为模板剂制备了SBA-15介孔氧化硅载体,并加入扩孔剂1,3,5-三甲苯(TMB)得到了扩大孔径的扩孔L-SBA-15载体,将ANI负载于SBA-15和L-SBA-15两种载体上构建了基于SBA-15介孔氧化硅的递药系统。通过SEM、TEM、FTIR、XRD和N2吸附-脱附测试等表征方法对载药前后载体的结构进行分析,发现SBA-15和L-SBA-15的孔径分别为5.04和11.92 nm,载药量分别为25.49%和15.72%。在pH为1.2和6.8的溶出介质中对药物溶出行为的比较发现,对比ANI原料药,两种载体均能明显提高负载ANI的溶出度,且ANI在L-SBA-15载体上的溶出速度较SBA-15载体略快。这与ANI高度分散于介孔材料中,且以无定形的非晶态物理吸附于介孔孔道内,较大的介孔更有利于药物的扩散及溶出有关。本研究为提高难溶性药物的溶出,以期改善此类药物的生物利用度提供了一定的实验依据。

关键词: 介孔氧化硅; SBA-15; 茴拉西坦; 药物递送系统; 溶出度; 1; 3; 5-三甲苯

Abstract: In order to improve the solubility and dissolution of insoluble drug aniracetam (ANI), SBA-15 mesoporous silica carrier was prepared using P123 as template, and the pore-expanded L-SBA-15 carrier with enlarged pore size was obtained using 1,3,5-trimethylbenzene (TMB) as pore-expanding agent. ANI was loaded on two carriers, SBA-15 and L-SBA-15, to construct a drug delivery system based on SBA-15 mesoporous silica. The structure of carrier before and after drug loading was analyzed by SEM, TEM, FTIR, XRD and N2 adsorption-desorption test. It is found that the pore sizes of SBA-15 and L-SBA-15 are 5.04 and 11.92 nm, and the drug loadings are 25.49% and 15.72%, respectively. Compare to the drug dissolution behavior in pH=1.2 and 6.8 dissolution media, it shows that both carriers can significantly improve the dissolution of ANI compared with ANI bulk drug, and the dissolution rate of ANI on L-SBA-15 carrier is slightly faster than that on SBA-15 carrier. This is related to the fact that ANI is highly dispersed in mesoporous materials and is physically adsorbed in mesoporous channels in an amorphous amorphous state, and larger mesopores are more conducive to the diffusion and dissolution of drugs. This study provides some certain experimental basis for improving the dissolution of insoluble drugs in order to increase the bioavailability of such drugs.

Key words: mesoporous silica; SBA-15; aniracetam; drug delivery system; dissolution; 1; 3; 5-trimethylbenzene

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