Poly(3-hydroxybutyrate)/chitosan/ketoprofen or piroxicam composite microparticles: Preparation and controlled drug release evaluation

被引:31
作者
Bazzo, G. C. [1 ]
Lemos-Senna, E. [2 ]
Pires, A. T. N. [1 ]
机构
[1] Univ Fed Santa Catarina, Dept Quim, Grp Estudos Mat Polimer POLIMAT, BR-88040900 Florianopolis, SC, Brazil
[2] Univ Fed Santa Catarina, Dept Ciencias Farmaceut, Lab Farmacotecn, BR-88040900 Florianopolis, SC, Brazil
关键词
Chitosan; Poly(3-hydroxybutyrate); Microparticles; Controlled drug release; IBUPROFEN-LOADED MICROSPHERES; LINKED CHITOSAN MICROSPHERES; PROTEIN RELEASE; FABRICATION; MORPHOLOGY;
D O I
10.1016/j.carbpol.2009.03.006
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Poly(3-hydroxybutyrate)/chitosan/piroxicam or ketoprofen composite microparticles were prepared by the solid-in-water-in-oil emulsion-solvent evaporation technique with the aim of reducing the burst effect and controlling the drug release. Reservoir-type microparticles, composed of poly(3-hydroxybutyrate) microspheres embedded in a chitosan matrix were prepared. The size and morphological characteristics of the composite microparticles were evaluated in relation to the chitosan concentration and crosslinking with glutaraldehyde. Reservoir-type composite microparticles were obtained using 2.0% and 3.0% w/v chitosan solutions. A significant reduction in the burst effect and prolonged drug release were observed, particularly when higher chitosan and glutaraldehyde concentrations were used. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:839 / 844
页数:6
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