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dc.contributor.authorSantana, Thamis Fernandes-
dc.contributor.authorOliveira, Rebeca Hannah de Melo-
dc.contributor.authorSantos, Ludmila Evangelista dos-
dc.contributor.authorLima, Eunice Paloma Nascimento-
dc.contributor.authorFaria, Sylvia de Sousa-
dc.contributor.authorFonseca, Marcos Augusto Moutinho-
dc.contributor.authorSilva, Jaqueline Rodrigues da-
dc.contributor.authorTatmatsu‑Rocha, José Carlos-
dc.contributor.authorGomes, Marília Miranda Forte-
dc.contributor.authorRosa, Mário Fabrício Fleury-
dc.contributor.authorRosa, Suélia de Siqueira Rodrigues Fleury-
dc.contributor.authorCarneiro, Marcella Lemos Brettas-
dc.date.accessioned2022-11-11T22:32:07Z-
dc.date.available2022-11-11T22:32:07Z-
dc.date.issued2022-06-14-
dc.identifier.citationSANTANA, Thamis Fernandes et. al. Effect of exposure to a light‑emitting diode (LED) on the physicochemical characteristics of natural latex biomembranes used to treat diabetic ulcers. Research on Biomedical Engineering, n. 38, p. 901–911, 2022. DOI 10.1007/s42600-022-00226-y. Disponível em: https://link.springer.com/article/10.1007/s42600-022-00226-y. Acesso em: 11 nov. 2022.pt_BR
dc.identifier.urihttps://repositorio.unb.br/handle/10482/45177-
dc.language.isoInglêspt_BR
dc.publisherSpringerpt_BR
dc.rightsAcesso Restritopt_BR
dc.titleEffect of exposure to a light‑emitting diode (LED) on the physicochemical characteristics of natural latex biomembranes used to treat diabetic ulcerspt_BR
dc.typeArtigopt_BR
dc.subject.keywordBorracha naturalpt_BR
dc.subject.keywordFototerapiapt_BR
dc.subject.keywordMateriais biocompatíveispt_BR
dc.subject.keywordCicatrização de feridaspt_BR
dc.identifier.doihttps://doi.org/10.1007/s42600-022-00226-ypt_BR
dc.description.abstract1Purpose Natural latex biomembrane has shown high therapeutic potential for the treatment of diabetic ulcers when associated with phototherapy. In this study, physical and chemical alterations in the latex biomembranes were evaluated after exposure to light-emitting diode (LED) irradiation and after contact with NaCl solution. Methods There were three experimental groups: natural latex biomembranes (1) in natura; (2) after 35 min of LED light irradiation; and (3) after immersion in NaCl 0.9 g% solution. The samples were analyzed by tensile strength test, thermogravimetry, contact angle wettability, and Fourier-transform infrared spectroscopy. Results The biomembranes that were submitted to contact with NaCl aqueous solution or exposure to LED did not undergo impairment of mechanical resistance. The thermogravimetry analysis indicated that increasing temperature led to mass loss in all samples, referring to their decomposition temperatures. In the wettability test, biomembranes exposed to LED showed a signifcant reduction in the contact angle between 0 and 10 min, indicating an increase in hydrophilicity, suggesting water storage capacity. The Fourier-transform infrared spectrometry assay showed that there was a more signifcant reduction in vibration intensity after immersion in NaCl solution compared to untreated biomembranes. An increase in the intensity of the entire spectrum of biomembranes exposed to LED was observed in comparison with the other samples, which may be related to photodegradation caused by LED light irradiation. Conclusion The biomembranes underwent signifcant changes in its chemical structure after being subjected to diferent types of exposure and maintained its elasticity and tensile strength properties, in addition to showing good water retention capacity after exposure to LED. Thus, it maintains many of its properties for application as a tissue-regenerating biomaterial, even when subjected to LED irradiation and a humid environment.pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-1516-9426pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-2992-5747pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-9125-0018pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-6552-7143pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-9113-9005pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-6017-7057pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-4900-4857pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-8584-9676pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-4821-9007pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-1247-9050pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-6165-0969pt_BR
dc.contributor.emailmailto:marbretas@unb.brpt_BR
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