Potassium Ferrite for Biomedical Applications
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2023 |
| 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/10362/154938 |
Resumo: | LA/P/0037/2020. LA/P/0006/2020. Publisher Copyright: © 2023 by the authors. |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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7160 |
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Potassium Ferrite for Biomedical Applicationscellular viabilityferritesmagnetic measurements (VSM and SQUID)sol-gel processesspecific absorption rate (SAR)X-ray diffractionMaterials Science(all)Condensed Matter PhysicsLA/P/0037/2020. LA/P/0006/2020. Publisher Copyright: © 2023 by the authors.Ferrites have been widely studied for their use in the biomedical area, mostly due to their magnetic properties, which gives them the potential to be used in diagnostics, drug delivery, and in treatment with magnetic hyperthermia, for example. In this work, KFeO2 particles were synthesized with a proteic sol-gel method using powdered coconut water as a precursor; this method is based on the principles of green chemistry. To improve its properties, the base powder obtained was subjected to multiple heat treatments at temperatures between 350 and 1300 °C. The samples obtained underwent structural, morphological, biocompatibility, and magnetic characterization. The results show that upon raising the heat treatment temperature, not only is the wanted phase detected, but also the secondary phases. To overcome these secondary phases, several different heat treatments were carried out. Using scanning electron microscopy, grains in the micrometric range were observed. Saturation magnetizations between 15.5 and 24.1 emu/g were observed for the samples containing KFeO2 with an applied field of 50 kOe at 300 K. From cellular compatibility (cytotoxicity) assays, for concentrations up to 5 mg/mL, only the samples treated at 350 °C were cytotoxic. However, the samples containing KFeO2, while being biocompatible, had low specific absorption rates (1.55–5.76 W/g).DF – Departamento de FísicaCENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)DCM - Departamento de Ciência dos MateriaisRUNCarvalho, João P. F.Vieira, TâniaSilva, Jorge CarvalhoSoares, Paula I. P.Ferreira, Nuno M.Amorim, Carlos O.Teixeira, Sílvia SoretoGraça, Manuel P. F.2023-07-06T22:17:26Z2023-05-222023-05-22T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article13application/pdfhttp://hdl.handle.net/10362/154938eng1996-1944PURE: 65373998https://doi.org/10.3390/ma16103880info: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:RCAAP2024-03-11T05:37:26Zoai:run.unl.pt:10362/154938Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:55:51.702224Repositório 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 |
Potassium Ferrite for Biomedical Applications |
| title |
Potassium Ferrite for Biomedical Applications |
| spellingShingle |
Potassium Ferrite for Biomedical Applications Carvalho, João P. F. cellular viability ferrites magnetic measurements (VSM and SQUID) sol-gel processes specific absorption rate (SAR) X-ray diffraction Materials Science(all) Condensed Matter Physics |
| title_short |
Potassium Ferrite for Biomedical Applications |
| title_full |
Potassium Ferrite for Biomedical Applications |
| title_fullStr |
Potassium Ferrite for Biomedical Applications |
| title_full_unstemmed |
Potassium Ferrite for Biomedical Applications |
| title_sort |
Potassium Ferrite for Biomedical Applications |
| author |
Carvalho, João P. F. |
| author_facet |
Carvalho, João P. F. Vieira, Tânia Silva, Jorge Carvalho Soares, Paula I. P. Ferreira, Nuno M. Amorim, Carlos O. Teixeira, Sílvia Soreto Graça, Manuel P. F. |
| author_role |
author |
| author2 |
Vieira, Tânia Silva, Jorge Carvalho Soares, Paula I. P. Ferreira, Nuno M. Amorim, Carlos O. Teixeira, Sílvia Soreto Graça, Manuel P. F. |
| author2_role |
author author author author author author author |
| dc.contributor.none.fl_str_mv |
DF – Departamento de Física CENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N) DCM - Departamento de Ciência dos Materiais RUN |
| dc.contributor.author.fl_str_mv |
Carvalho, João P. F. Vieira, Tânia Silva, Jorge Carvalho Soares, Paula I. P. Ferreira, Nuno M. Amorim, Carlos O. Teixeira, Sílvia Soreto Graça, Manuel P. F. |
| dc.subject.por.fl_str_mv |
cellular viability ferrites magnetic measurements (VSM and SQUID) sol-gel processes specific absorption rate (SAR) X-ray diffraction Materials Science(all) Condensed Matter Physics |
| topic |
cellular viability ferrites magnetic measurements (VSM and SQUID) sol-gel processes specific absorption rate (SAR) X-ray diffraction Materials Science(all) Condensed Matter Physics |
| description |
LA/P/0037/2020. LA/P/0006/2020. Publisher Copyright: © 2023 by the authors. |
| publishDate |
2023 |
| dc.date.none.fl_str_mv |
2023-07-06T22:17:26Z 2023-05-22 2023-05-22T00:00:00Z |
| 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/10362/154938 |
| url |
http://hdl.handle.net/10362/154938 |
| dc.language.iso.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
1996-1944 PURE: 65373998 https://doi.org/10.3390/ma16103880 |
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info:eu-repo/semantics/openAccess |
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openAccess |
| dc.format.none.fl_str_mv |
13 application/pdf |
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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 |
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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) |
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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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1799138145163280384 |