Browsing by Subject "Controlled release"
Now showing items 1-8 of 8
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Chitosan beads as a delivery vehicle for the antituberculosis drug pyrazinamide
(North-West University, 2006)Controlled release systems aim at achieving a predictable and reproducible drug release profile over a desired time period. These controlled release formulations offer many advantages over conventional dosage forms. These ... -
A comparison on the release modifying behaviour of chitosan and kollidon SR
(North-West University, 2007)Controlled release formulations deliver an active ingredient over an extended period of time. It is an ideal dosage form for an active ingredient with a short elimination half-life. An active ingredient with a short ... -
Development of microporous drug-releasing films cast from artificial nanosized latexes of poly (styrebe-co-methyl methacrylate) or poly (styrene-co-ethyl methacylate)
(Elsevier, 2008)Two sets of copolymers comprising of styrene and either methyl or ethyl methacrylate as comonomer were conveniently synthesized by microemulsion copolymerization. The purified materials were characterized by GPC-MALLS and ... -
Excipients with specialized functions for effective drug delivery
(Taylor & Francis, 2012)Introduction: There is a growing need for the development of pharmaceutical excipients that could improve product performance and overcome the shortcomings of new drug moieties, such as their poor solubility and membrane ... -
Matrix forming excipients from natural origin for controlled release matrix type tablets
(Elsevier, 2011)Since excipients from renewable sources are attractive due to their sustainable mass production, this study aimed at investigating the use of gel and whole leaf materials from Aloe vera and Aloe ferox to produce controlled ... -
Moulded cross-linked chitosan matrix systems for controlled drug release
(Taylor & Francis, 2011)Matrix-type drug delivery systems were prepared by moulding and drying cross-linked chitosan gels in 24-well plates and they were evaluated in terms of their physical properties, drug content, surface morphology and swelling. ... -
Self-assembled macromolecular nanocoatings to stabilize and control drug release from nanoparticles
(Elsevier, 2014)A layer-by-layer (LbL) nanocoat (b25 nm thick) of two polyelectrolytes, chitosan and chondroitin sulfate was self-assembled step-wise onto drug nanoparticles that were prepared by a solvent-evaporation emulsification method ... -
Synthesis, characterization and pharmaceutical application of selected copolymer nanoparticles
(North-West University, 2007)A multidisciplinary literature survey revealed that copolymeric nanoparticles could be applied in various technologies such as the production of paint, adhesives, packaging material and lately especially drug delivery ...