Preparation of supramolecular hydrogels containing poloxamers and methyl-β-cyclodextrin
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10284/10669 |
Resumo: | Meloxicam is a non-steroidal anti-inflammatory drug used in the treatment of rheumatoid arthritis, osteoarthritis and other inflammatory diseases. However, its prolonged use is associated to several side effects like gastrointestinal perforations, ulcerations and bleeding, probably due its low aqueous solubility and wettability after oral administration. These side effects can reduce patient compliance and discourage physician from prescribing this drug. In this way, inclusion complexes between meloxicam and methyl-β-cyclodextrin were prepared in aqueous solution by phase solubility studies and in solid state by freeze-drying method in order to increase drug solubility. The physicochemical characterization of the prepared complexes in solid state was performed by different techniques. Furthermore, hydrogels containing poloxamers were prepared for topical administration of meloxicam. For this purpose, solid inclusion complexes were incorporated in hydrogels with different poloxamers composition. The rheological behaviour of these formulations was studied by different methods and the drug release from optimised hydrogels was evaluated by Franz diffusion cells, applying some mathematical models to analyse the drug release mechanism from hydrogels. Results from phase solubility studies showed the formation of inclusion complexes between meloxicam and methyl-beta-cyclodextrin in aqueous solution in a 1:1 stoichiometry and an increase in drug solubility. Different techniques employed indicated complete formation of complexes in solid state prepared by the freeze-drying method. Moreover, the performed set of rheological studies, easily adapted to similar systems, demonstrated that hydrogels containing poloxamers and cyclodextrin may provide a suitable supramolecular platform for meloxicam delivery as a novel strategy to increase drug bioavailability. |
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Preparation of supramolecular hydrogels containing poloxamers and methyl-β-cyclodextrinControlled releaseHydrogelsInclusion complexesMeloxicamMethyl-β-cyclodextrinPoloxamers.Meloxicam is a non-steroidal anti-inflammatory drug used in the treatment of rheumatoid arthritis, osteoarthritis and other inflammatory diseases. However, its prolonged use is associated to several side effects like gastrointestinal perforations, ulcerations and bleeding, probably due its low aqueous solubility and wettability after oral administration. These side effects can reduce patient compliance and discourage physician from prescribing this drug. In this way, inclusion complexes between meloxicam and methyl-β-cyclodextrin were prepared in aqueous solution by phase solubility studies and in solid state by freeze-drying method in order to increase drug solubility. The physicochemical characterization of the prepared complexes in solid state was performed by different techniques. Furthermore, hydrogels containing poloxamers were prepared for topical administration of meloxicam. For this purpose, solid inclusion complexes were incorporated in hydrogels with different poloxamers composition. The rheological behaviour of these formulations was studied by different methods and the drug release from optimised hydrogels was evaluated by Franz diffusion cells, applying some mathematical models to analyse the drug release mechanism from hydrogels. Results from phase solubility studies showed the formation of inclusion complexes between meloxicam and methyl-beta-cyclodextrin in aqueous solution in a 1:1 stoichiometry and an increase in drug solubility. Different techniques employed indicated complete formation of complexes in solid state prepared by the freeze-drying method. Moreover, the performed set of rheological studies, easily adapted to similar systems, demonstrated that hydrogels containing poloxamers and cyclodextrin may provide a suitable supramolecular platform for meloxicam delivery as a novel strategy to increase drug bioavailability.Bentham ScienceRepositório Institucional da Universidade Fernando PessoaGarcia, MariaRuivo, JoanaOliveira, RitaFigueiras, Ana2022-01-27T12:25:28Z2014-01-01T00:00:00Z2014-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10284/10669eng1570-180810.2174/1570180811666140220005117metadata only accessinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-09-06T02:09:56Zoai:bdigital.ufp.pt:10284/10669Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:47:26.041803Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Preparation of supramolecular hydrogels containing poloxamers and methyl-β-cyclodextrin |
title |
Preparation of supramolecular hydrogels containing poloxamers and methyl-β-cyclodextrin |
spellingShingle |
Preparation of supramolecular hydrogels containing poloxamers and methyl-β-cyclodextrin Garcia, Maria Controlled release Hydrogels Inclusion complexes Meloxicam Methyl-β-cyclodextrin Poloxamers. |
title_short |
Preparation of supramolecular hydrogels containing poloxamers and methyl-β-cyclodextrin |
title_full |
Preparation of supramolecular hydrogels containing poloxamers and methyl-β-cyclodextrin |
title_fullStr |
Preparation of supramolecular hydrogels containing poloxamers and methyl-β-cyclodextrin |
title_full_unstemmed |
Preparation of supramolecular hydrogels containing poloxamers and methyl-β-cyclodextrin |
title_sort |
Preparation of supramolecular hydrogels containing poloxamers and methyl-β-cyclodextrin |
author |
Garcia, Maria |
author_facet |
Garcia, Maria Ruivo, Joana Oliveira, Rita Figueiras, Ana |
author_role |
author |
author2 |
Ruivo, Joana Oliveira, Rita Figueiras, Ana |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Repositório Institucional da Universidade Fernando Pessoa |
dc.contributor.author.fl_str_mv |
Garcia, Maria Ruivo, Joana Oliveira, Rita Figueiras, Ana |
dc.subject.por.fl_str_mv |
Controlled release Hydrogels Inclusion complexes Meloxicam Methyl-β-cyclodextrin Poloxamers. |
topic |
Controlled release Hydrogels Inclusion complexes Meloxicam Methyl-β-cyclodextrin Poloxamers. |
description |
Meloxicam is a non-steroidal anti-inflammatory drug used in the treatment of rheumatoid arthritis, osteoarthritis and other inflammatory diseases. However, its prolonged use is associated to several side effects like gastrointestinal perforations, ulcerations and bleeding, probably due its low aqueous solubility and wettability after oral administration. These side effects can reduce patient compliance and discourage physician from prescribing this drug. In this way, inclusion complexes between meloxicam and methyl-β-cyclodextrin were prepared in aqueous solution by phase solubility studies and in solid state by freeze-drying method in order to increase drug solubility. The physicochemical characterization of the prepared complexes in solid state was performed by different techniques. Furthermore, hydrogels containing poloxamers were prepared for topical administration of meloxicam. For this purpose, solid inclusion complexes were incorporated in hydrogels with different poloxamers composition. The rheological behaviour of these formulations was studied by different methods and the drug release from optimised hydrogels was evaluated by Franz diffusion cells, applying some mathematical models to analyse the drug release mechanism from hydrogels. Results from phase solubility studies showed the formation of inclusion complexes between meloxicam and methyl-beta-cyclodextrin in aqueous solution in a 1:1 stoichiometry and an increase in drug solubility. Different techniques employed indicated complete formation of complexes in solid state prepared by the freeze-drying method. Moreover, the performed set of rheological studies, easily adapted to similar systems, demonstrated that hydrogels containing poloxamers and cyclodextrin may provide a suitable supramolecular platform for meloxicam delivery as a novel strategy to increase drug bioavailability. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-01-01T00:00:00Z 2014-01-01T00:00:00Z 2022-01-27T12:25:28Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10284/10669 |
url |
http://hdl.handle.net/10284/10669 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1570-1808 10.2174/1570180811666140220005117 |
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metadata only access info:eu-repo/semantics/openAccess |
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metadata only access |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Bentham Science |
publisher.none.fl_str_mv |
Bentham Science |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799130341335629824 |