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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Kennedy, James E.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2020The Effect of Various Nanoclay Surface Modifications on the Thermal and Mechanical Properties of Amorphous Polyamide Nanocomposites
- 2017Processing stability and the significance of variation in extrusion speeds and temperatures on SSB® 55 pharma grade shellac for oral drug deliverycitations
- 2017The development of a melt-extruded shellac carrier for the targeted delivery of probiotics to the coloncitations
- 2010Characterisation of the effects of a titanium micro particle filler on a polyether-block-amide host matrixcitations
- 2009Development and characterisation of an agar-polyvinyl alcohol blend hydrogelcitations
- 2008Characterisation and controlled drug release from novel drug-loaded hydrogelscitations
- 2007Preparation of monolithic matrices for oral drug delivery using a supercritical fluid assisted hot melt extrusion processcitations
- 2007The incorporation of an organically modified layered silicate in monolithic polymeric matrices produced using hot melt extrusioncitations
- 2007The synthesis, swelling behaviour and rheological properties of chemically crosslinked thermosensitive copolymers based on N-isopropylacrylamidecitations
- 2006The use of Agar as a novel filler for monolithic matrices produced using hot melt extrusioncitations
- 2006Lower critical solution temperature control and swelling behaviour of physically crosslinked thermosensitive copolymers based on N-isopropylacrylamidecitations
Places of action
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article
The development of a melt-extruded shellac carrier for the targeted delivery of probiotics to the colon
Abstract
<p>Hot melt extrusion (HME) is considered an efficient technique in developing solid molecular dispersions, and has been demonstrated to provide sustained, modified and targeted drug delivery resulting in improved bioavailability. However, most commercial enteric or pH-responsive polymers are relatively difficult to process or have high Glass Transition Temperature (Tg) values, making their use with temperature-sensitive drugs, probiotics or biologics not viable. Shellac is a natural thermoplastic, and after a review of current literature on the pharmaceutical HME process, a possible gap in the knowledge of the use of shellac to produce dosage forms by means of HME was identified. This work explores the possibility of SSB® 55 pharmaceutical-grade shellac as a melt-extrudable encapsulation polymer to entrap freeze-dried probiotic powder and to determine bacterial cell viability post-processing. Well-defined strands were produced from the physical mixture of shellac and Biocare® Bifidobacterium Probiotic. FTIR clarified that there are no significant interactions between the probiotic and polymer. All of the samples demonstrated less than 5% degradation over 24 h at pH of both 1.2 and 6.8. At pH 7.4, both loaded samples gave a similar dissolution trend with complete degradation achieved after 10–11 h. Following five-month storage, 57.8% reduction in viability was observed.</p>