Accelerated Polymer Biodegradation of Risperidone Poly(d, l-Lactide-Co-Glycolide) Microspheres
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چکیده
منابع مشابه
Encapsulation of Naja –Naja Oxiana Snake venom into Poly (lactide-co-glycolide) microspheres
One small-scale double emulsion technique for incorporation of Naja- Naja oxiana venom into Poly (lactide-co-glycolide) (PLGA) microspheres were developed and optimized. The effects of high speed homogenization on the double emulsion stability, microsphere size, entrapment efficiency and In vitro release of venom were studied. A stable double emulsion was verified by homogenization method. Slow...
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The objective of this work was to develop a fast and significant method for the determination of the intraparticulate pore size distribution of microspheres. Poly(lactide-co-glycolide) (PLGA) microspheres prepared with a solvent extraction/evaporation process were studied. From the envelope and the skeletal volume of the microspheres the porosity was calculated. The skeletal volume was determin...
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Interferon-α2b (IFN-α2b) produced in Cuba by the Center for Genetic Engineering and Biotechnology was encapsulated into poly (D,L-lactide-co-glycolide) (PLGA) microspheres using the double emulsion-solvent evaporation method. Resulting microspheres showed smooth surfaces containing randomly distributed pores, a mean diameter of 28.1 ± 0.4 μm (using 14,000 rpm for the second emulsification step)...
متن کاملPreparation, Characterization, and In Vivo Evaluation of Olanzapine Poly(D,L-lactide-co-glycolide) Microspheres
The aim of this study was to prepare injectable depot formulations of Olanzapine using four poly(D,L-lactide-co-glycolide) (PLGA) polymers of varying molecular weight and copolymer composition, and evaluate in vivo performance in rats. In vivo release profiles from the formulations were governed chiefly by polymer molecular weight and to a lesser extent, copolymer composition. Formulations A an...
متن کاملBiodegradation and biocompatibility of contraceptive-steroid-loaded poly (DL-lactide-co-glycolide) injectable microspheres: in vitro and in vivo study.
PURPOSE A controlled-release drug delivery of contraceptive steroids levonorgestrel (LNG) and ethinyl estradiol (EE) has been developed by successful encapsulation of LNG and EE in poly (lactide-co-glycolide) (PLG) microspheres. MATERIALS AND METHODS Smooth, spherical, steroid-loaded PLG microspheres with a mean size of 10-25 microm were prepared by using the water/oil/water double-emulsion s...
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ژورنال
عنوان ژورنال: AAPS PharmSciTech
سال: 2012
ISSN: 1530-9932
DOI: 10.1208/s12249-012-9874-4