Influence of gamma irradiation dose and concentration of laponite clay on poly (N-vinyl-2-pyrrolidone) hydrogels

Página do item simplificado
dc.contributor.authorSANTOS, VINICIUS J.
dc.contributor.authorZAFALON, ANGELICA T.
dc.contributor.authorLUGAO, ADEMAR B.
dc.contributor.authorPARRA, DUCLERC F.
dc.coverageInternacionalpt_BR
dc.creator.eventoINTERNATIONAL NUCLEAR ATLANTIC CONFERENCEpt_BR
dc.date.accessioned2018-01-17T17:41:30Z
dc.date.available2018-01-17T17:41:30Z
dc.date.eventoOctober 22-27, 2017pt_BR
dc.description.abstractHydrogels are polymeric biomaterials widely used in biomedicine and defined as an insoluble system of one or more crosslinked hydrophilic polymers, capable of absorbing large amounts of fluids without losing their physical integrity. Composed by one three-dimensional network of crosslinked polymer chains they can be synthesized by various physical and chemical methods including radiation. One of these methods is the gamma irradiation process, which forms the crosslinked network and sterilizes the material in a single step. In the biomedical field one of hydrogels applications is the transdermal dressings, these systems have an impact of great value in the treatment of wounds, as they can protect regions injured by burns, cuts and even chronic wounds. The association of clay to hydrogels promotes a modification of properties of these materials, such as swelling and gel fraction. Thus, the objective of this work was to evaluate the swelling properties and gel fraction of hydrogels based on polymer formulation of poly (N-vinyl-2-pyrrolidone), poly (ethylene glycol), agar containing nano-clay laponite RD in Different concentrations (0, 0.01, 0.1, 0.5, 1, 2, 5, 10, 20%). The materials were mixed by stirring and heating and then processed by gamma radiation from Co-60 at doses of 10, 25, 50 and 70 kGy. To evaluate the gel fraction, the membranes were immersed in water for 3 weeks. The swelling was evaluated after 48 hours of immersion in distilled water at room temperature. It was observed that as the clay concentration increases regardless of the irradiation dose the amount of gel fraction decreased and the amount of water absorption increased.pt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)pt_BR
dc.description.sponsorshipIDFAPESP: 16/19254-0pt_BR
dc.description.sponsorshipIDCAPES: 88881.068030/2014-10pt_BR
dc.event.siglaINACpt_BR
dc.identifier.citationSANTOS, VINICIUS J.; ZAFALON, ANGELICA T.; LUGAO, ADEMAR B.; PARRA, DUCLERC F. Influence of gamma irradiation dose and concentration of laponite clay on poly (N-vinyl-2-pyrrolidone) hydrogels. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE, October 22-27, 2017, Belo Horizonte, MG. <b>Proceedings...</b> Rio de Janeiro, RJ: Associação Brasileira de Energia Nuclear, 2017. Disponível em: http://repositorio.ipen.br/handle/123456789/28358.
dc.identifier.orcidhttps://orcid.org/0000-0002-7626-880X
dc.identifier.orcidhttps://orcid.org/0000-0002-1737-3191
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/28358
dc.localRio de Janeiro, RJpt_BR
dc.local.eventoBelo Horizonte, MGpt_BR
dc.publisherAssociação Brasileira de Energia Nuclearpt_BR
dc.rightsopenAccesspt_BR
dc.subjectclays
dc.subjectcobalt 60
dc.subjectconcentration ratio
dc.subjectcross-linking
dc.subjectgamma radiation
dc.subjectglycols
dc.subjecthydrogels
dc.subjectpvp
dc.subjectradiation doses
dc.subjectradiation effects
dc.subjectswelling
dc.titleInfluence of gamma irradiation dose and concentration of laponite clay on poly (N-vinyl-2-pyrrolidone) hydrogelspt_BR
dc.typeTexto completo de eventopt_BR
dspace.entity.typePublication
ipen.autorDUCLERC FERNANDES PARRA
ipen.autorADEMAR BENEVOLO LUGAO
ipen.autorANGELICA TAMIÃO ZAFALON
ipen.autorVINICIUS JUVINO DOS SANTOS
ipen.codigoautor562
ipen.codigoautor339
ipen.codigoautor6419
ipen.codigoautor14044
ipen.contributor.ipenauthorDUCLERC FERNANDES PARRA
ipen.contributor.ipenauthorADEMAR BENEVOLO LUGAO
ipen.contributor.ipenauthorANGELICA TAMIÃO ZAFALON
ipen.contributor.ipenauthorVINICIUS JUVINO DOS SANTOS
ipen.date.recebimento18-01pt_BR
ipen.event.datapadronizada2017pt_BR
ipen.identifier.ipendoc24193pt_BR
ipen.notas.internasProceedingspt_BR
ipen.type.genreArtigo
relation.isAuthorOfPublication67996d86-0a59-4ba2-8d38-facaa14e26c3
relation.isAuthorOfPublication99ac24c5-2ae1-465a-a6f2-40b4d9af6af7
relation.isAuthorOfPublication49d823d7-3167-4065-8db0-9ed6915062cc
relation.isAuthorOfPublicatione7446613-4b8b-42e0-a53b-077674c2c830
relation.isAuthorOfPublication.latestForDiscoverye7446613-4b8b-42e0-a53b-077674c2c830
sigepi.autor.atividadeSANTOS, VINICIUS J.:14044:740:Spt_BR
sigepi.autor.atividadeZAFALON, ANGELICA T.:6419:740:Npt_BR
sigepi.autor.atividadeLUGAO, ADEMAR B.:339:740:Npt_BR
sigepi.autor.atividadePARRA, DUCLERC F.:562:740:Npt_BR
Pacote Original
Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
24193.pdf
Tamanho:
456 KB
Formato:
Adobe Portable Document Format
Descrição:
Baixar
Licença do Pacote
Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:
Baixar
Coleções
Eventos