高等学校化学学报 ›› 2019, Vol. 40 ›› Issue (3): 592.doi: 10.7503/cjcu20180408

• 高分子化学 • 上一篇    下一篇

聚合物复合物层层组装膜的高效负载及大分子和小分子药物的差别性释放

陈栋栋2, 宋文植3, 李慧3, 何丹1, 孙俊奇2, 尹万忠1()   

  1. 1. 吉林大学第一临床医院, 长春 130021
    2. 吉林大学超分子结构与材料国家重点实验室, 化学学院, 长春 130012
    3. 吉林大学中日联谊医院, 长春 130031
  • 收稿日期:2019-06-04 出版日期:2019-03-10 发布日期:2019-01-24
  • 作者简介:联系人简介: 尹万忠, 男, 博士, 副教授, 主要从事纳米材料和高分子材料技术在头颈外科的应用研究. E-mail: yinwz@jlu.edu.cn
  • 基金资助:
    国家自然科学基金(批准号: 3A413AK53428, 81372900)和吉林省科技厅项目(批准号: 20180414014GH)资助.

Layer-by-layer Assembled Polymeric Complexes Films for High Loading and Differential Release of Macromolecular and Small Molecular Drugs

CHEN Dongdong2, SONG Wenzhi3, LI Hui3, HE Dan1, SUN Junqi2, YIN Wanzhong1,*()   

  1. 1. The First Clinical Hospital, Jilin University, Changchun 130021, China
    2. State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry,Jilin University, Changchun 130012, China
    3. China-Japan Union Hospital, Jilin University, Changchun 130031, China
  • Received:2019-06-04 Online:2019-03-10 Published:2019-01-24
  • Contact: YIN Wanzhong E-mail:yinwz@jlu.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(Nos.3A413AK53428, 81372900) and the Project of Science and Technology Department of Jilin Province, China(No.20180414014GH).

摘要:

基于聚合物复合物和层层组装技术实现了大分子药物硫酸软骨素和小分子药物头孢曲松钠在聚合物膜中的高效负载以及差别性释放. 壳聚糖(CHI)和大分子药物硫酸软骨素(CSS)通过静电相互作用力复合, 制备了壳聚糖-硫酸软骨素复合物(CHI-CSS). 以CHI-CSS复合物和透明质酸(HA)为构筑基元, 通过层层组装构筑负载有硫酸软骨素的聚合物复合物膜. 利用后扩散的负载方法将小分子药物头孢曲松钠(CTX)负载到聚合物膜中, 从而实现大分子和小分子2种药物在聚合物膜中的负载. 聚合物膜中负载的CTX和CSS在生理条件下具有快慢不同的差别性释放动力学特性, CTX在6 h内快速释放, 而CSS长效缓释长达14 d. 快速释放的抗生素CTX能够有效抑制细菌感染, 而酶降解作用下缓慢释放的CSS可促进伤口愈合, 在包括头颈外科在内的外科术后感染防治领域有良好应用前景.

关键词: 层层组装, 聚合物复合物, 聚合物膜, 药物传递, 差别性释放

Abstract:

The layer-by-Layer(LbL) assembled polymeric complexes films capable of differential release of macromolecular and small molecular drugs were fabricated by utilizing chitosan(CHI) hydrochloride-chondroitin sulfate sodium(CSS) complexes(denoted as CHI-CSS complexes) as building blocks and post-diffusion of ceftriaxone sodium(CTX). The CHI-CSS complexes were prepared by pre-assembled macromolecular drugs CSS with CHI, and then were LbL assembled with hyaluronic acid(HA) to produce CHI-CSS/HA polymeric films. The small molecular drugs CTX were loaded into the CHI-CSS/HA polymeric films through a postdiffusion process. The as-prepared CHI-CSS/HA polymeric films possess high loading capacity because of the high encapsulation amount of CSS in CHI-CSS complexes and plenty of electrostatic binding sites for CTX provided by film component CHI. CTX can be quickly released from the polymeric films because of the brea-kage of its electrostatic interaction with film component CHI. Meanwhile, the CSS can be released in sustained manner by enzymatic degradation of the films. The synergetic therapeutic effects can be achieved by fast release of antibiotic drug CTX to effectively eliminate bacteria and by sustained release of CSS to promote wound healing. The present work provides a facile way to fabricate polymeric films for high loading and diffe-rential release of multiple therapeutic agents.

Key words: Layer-by-Layer(LbL) assembly, Polymeric complex, Polymeric film, Drug delivery, Differential release

中图分类号: 

TrendMD: