Comprehensive understanding of tablet disintegration processes
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F17%3A43914044" target="_blank" >RIV/60461373:22340/17:43914044 - isvavai.cz</a>
Výsledek na webu
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DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Comprehensive understanding of tablet disintegration processes
Popis výsledku v původním jazyce
It is commonly known that composition, excipients and manufacturing process significantly affect behaviour of the pharmaceutical tablets in aqueous media. Tablets consisting of ibuprofen and lactose (ibuprofen content: 0.2 ? 0.5 w/w) and tableted at different compaction pressures (low, medium, high) were prepared and subjected to tests exploring their dissolution behaviour, mechanical properties, wettability, liquid penetration and surface characteristics. Certified dissolution tests showed differences in dissolution rate between 0.2/0.3 and 0.4/0.5 tablets, while compaction pressure did not play important role. It was proved, that compaction pressure does not affect contact angle, which is only a function of the tablet composition. Further experiments showed that compaction pressure affects final soaking time, where this time increases not only with compaction pressure, but also with ibuprofen content. MRI results showed that higher concentration of ibuprofen leads to slower disintegration. Higher compaction pressure applied in the tabletting process slows down the disintegration and dissolution processes in the tablets regardless the concentration of ibuprofen. There is a surface erosion of the tablet observed, when exposed to dissolution medium. Characteristic ibuprofen clusters appear and their amount increases with increasing ibuprofen content. These clusters significantly differ from primary particles and are present in case of all compaction pressures and compositions. Dissolution tests in discriminative conditions (lactose dissolution prevented) showed significant decrease in ibuprofen dissolution rate, which might indicate the presence of the clusters formed by compressed ibuprofen crystals covered in lactose. The other interesting discovery concerns with the tablet disintegration and its driving force. During the dissolution tests it was observed that in case of 0.2 tablets disintegration occurs independently on the dissolution medium. These findings lead to the idea of the disintegration driven by affinity of the hydrophobic substance to the solvent, which facilitates water penetration and subsequent disintegration.
Název v anglickém jazyce
Comprehensive understanding of tablet disintegration processes
Popis výsledku anglicky
It is commonly known that composition, excipients and manufacturing process significantly affect behaviour of the pharmaceutical tablets in aqueous media. Tablets consisting of ibuprofen and lactose (ibuprofen content: 0.2 ? 0.5 w/w) and tableted at different compaction pressures (low, medium, high) were prepared and subjected to tests exploring their dissolution behaviour, mechanical properties, wettability, liquid penetration and surface characteristics. Certified dissolution tests showed differences in dissolution rate between 0.2/0.3 and 0.4/0.5 tablets, while compaction pressure did not play important role. It was proved, that compaction pressure does not affect contact angle, which is only a function of the tablet composition. Further experiments showed that compaction pressure affects final soaking time, where this time increases not only with compaction pressure, but also with ibuprofen content. MRI results showed that higher concentration of ibuprofen leads to slower disintegration. Higher compaction pressure applied in the tabletting process slows down the disintegration and dissolution processes in the tablets regardless the concentration of ibuprofen. There is a surface erosion of the tablet observed, when exposed to dissolution medium. Characteristic ibuprofen clusters appear and their amount increases with increasing ibuprofen content. These clusters significantly differ from primary particles and are present in case of all compaction pressures and compositions. Dissolution tests in discriminative conditions (lactose dissolution prevented) showed significant decrease in ibuprofen dissolution rate, which might indicate the presence of the clusters formed by compressed ibuprofen crystals covered in lactose. The other interesting discovery concerns with the tablet disintegration and its driving force. During the dissolution tests it was observed that in case of 0.2 tablets disintegration occurs independently on the dissolution medium. These findings lead to the idea of the disintegration driven by affinity of the hydrophobic substance to the solvent, which facilitates water penetration and subsequent disintegration.
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
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OECD FORD obor
20401 - Chemical engineering (plants, products)
Návaznosti výsledku
Projekt
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Návaznosti
S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2017
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název statě ve sborníku
PROCEEDINGS 44th International Conference of the Slovak Society of Chemical Engineering
ISBN
978-80-89597-58-1
ISSN
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e-ISSN
neuvedeno
Počet stran výsledku
10
Strana od-do
649-658
Název nakladatele
Slovak Society of Chemical Engineering
Místo vydání
Bratislava
Místo konání akce
Demänovská dolina
Datum konání akce
22. 5. 2017
Typ akce podle státní příslušnosti
WRD - Celosvětová akce
Kód UT WoS článku
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