期刊
INTERNATIONAL JOURNAL OF PHARMACEUTICS
卷 397, 期 1-2, 页码 211-217出版社
ELSEVIER
DOI: 10.1016/j.ijpharm.2010.07.007
关键词
Electrospray deposition; Chitosan; Nanoparticle
资金
- World Premier International Research Center (WPI) Initiative on Materials Nanoarchitectonics, MEXT, Japan
Solid micro- and nanoparticles were prepared from chitosan/acetic acid solution in one-step by the electrospray procedure. The effects of various solution properties and processing parameters on particle formation were investigated. Solution viscosity and conductivity were the most important factors affecting electrospray behavior, i.e., stable electrospray was achieved only when viscosity was high and/or conductivity was low. Smaller particles could be obtained by decreasing acetic acid concentration, chitosan concentration, and/or flow rate. Furthermore, addition of ethanol could effectively stabilize the electrospray by decreasing the solution conductivity and increasing the solution viscosity. By optimizing the solution and operation parameters, the average diameter of the chitosan particles was reduced down to 124 nm, suggesting that electrospray is promising in producing solid micro- and nanoparticles for oral and pulmonary drug delivery systems. (C) 2010 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据