One step synthesis of magnetic particles covered with casein surfactant
ABSTRACT: The one-step coprecipitation method is used to obtain magnetic nanoparticles controlling the pH (10 and 12), and casein surfactant (CS) concentrations (1 % and 3 % (m/m)). CS has not been used so far for stabilizing magnetic iron oxide ferrofluids. The magnetic nanoparticles have a magneti...
- Autores:
-
Urquijo Morales, Jeaneth Patricia
Casanova Yepes, Herley Fernando
Morales Aramburo, Álvaro Luis
Zysler, Roberto Daniel
- Tipo de recurso:
- Article of investigation
- Fecha de publicación:
- 2014
- Institución:
- Universidad de Antioquia
- Repositorio:
- Repositorio UdeA
- Idioma:
- eng
- OAI Identifier:
- oai:bibliotecadigital.udea.edu.co:10495/29789
- Acceso en línea:
- https://hdl.handle.net/10495/29789
https://revistas.eia.edu.co/index.php/reveia/article/view/577
- Palabra clave:
- Espectroscopia de Mossbauer
Mossbauer spectroscopy
Nanopartículas magnéticas
- Rights
- openAccess
- License
- http://creativecommons.org/licenses/by-nc-nd/2.5/co/
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| dc.title.spa.fl_str_mv |
One step synthesis of magnetic particles covered with casein surfactant |
| dc.title.alternative.spa.fl_str_mv |
Síntesis de partículas magnéticas cubiertas con caseinato de sodio |
| title |
One step synthesis of magnetic particles covered with casein surfactant |
| spellingShingle |
One step synthesis of magnetic particles covered with casein surfactant Espectroscopia de Mossbauer Mossbauer spectroscopy Nanopartículas magnéticas |
| title_short |
One step synthesis of magnetic particles covered with casein surfactant |
| title_full |
One step synthesis of magnetic particles covered with casein surfactant |
| title_fullStr |
One step synthesis of magnetic particles covered with casein surfactant |
| title_full_unstemmed |
One step synthesis of magnetic particles covered with casein surfactant |
| title_sort |
One step synthesis of magnetic particles covered with casein surfactant |
| dc.creator.fl_str_mv |
Urquijo Morales, Jeaneth Patricia Casanova Yepes, Herley Fernando Morales Aramburo, Álvaro Luis Zysler, Roberto Daniel |
| dc.contributor.author.none.fl_str_mv |
Urquijo Morales, Jeaneth Patricia Casanova Yepes, Herley Fernando Morales Aramburo, Álvaro Luis Zysler, Roberto Daniel |
| dc.subject.lemb.none.fl_str_mv |
Espectroscopia de Mossbauer Mossbauer spectroscopy |
| topic |
Espectroscopia de Mossbauer Mossbauer spectroscopy Nanopartículas magnéticas |
| dc.subject.proposal.spa.fl_str_mv |
Nanopartículas magnéticas |
| description |
ABSTRACT: The one-step coprecipitation method is used to obtain magnetic nanoparticles controlling the pH (10 and 12), and casein surfactant (CS) concentrations (1 % and 3 % (m/m)). CS has not been used so far for stabilizing magnetic iron oxide ferrofluids. The magnetic nanoparticles have a magnetite core with maghemite in surface, and a shell of polymer. The transmission electron images confirm the crystallinity, particle size distribution in the range of 5-10 nm, and the spinel structure of the nanoparticles. Mössbauer results at 80 K showed line shapes dominated by magnetic relaxation effects with sextets and combinations of sextets and doublets. The interactions of the surfactant with the nanoparticle surface are strong showing at least two surfactant layers. The magnetic behavior was evaluated by moment versus temperature and magnetic field measurements. The nanoparticles showed superparamagnetic behavior at room temperature and blocked (irreversible) behavior at 5 K. The saturation magnetization presented lower values than reported bulk systems due to the presence of a large layer of maghemite. The FC/ZFC magnetization vs. temperature curves confirmed the superparamagnetic nature of the iron oxide particles and the strong interactions for pH 12 samples and weak interactions for pH 10 samples. The particle growth was dominated by the surface properties of the nanoparticles. |
| publishDate |
2014 |
| dc.date.issued.none.fl_str_mv |
2014 |
| dc.date.accessioned.none.fl_str_mv |
2022-07-18T22:25:28Z |
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2022-07-18T22:25:28Z |
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info:eu-repo/semantics/article |
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http://purl.org/coar/version/c_970fb48d4fbd8a85 |
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http://purl.org/coar/resource_type/c_2df8fbb1 |
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https://purl.org/redcol/resource_type/ART |
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Artículo de investigación |
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http://purl.org/coar/resource_type/c_2df8fbb1 |
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1794-1237 |
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https://hdl.handle.net/10495/29789 |
| dc.identifier.doi.none.fl_str_mv |
10.14508/reia.2013.10.20.13-22 |
| dc.identifier.eissn.none.fl_str_mv |
2463-0950 |
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https://revistas.eia.edu.co/index.php/reveia/article/view/577 |
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1794-1237 10.14508/reia.2013.10.20.13-22 2463-0950 |
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https://hdl.handle.net/10495/29789 https://revistas.eia.edu.co/index.php/reveia/article/view/577 |
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eng |
| language |
eng |
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Revista EIA |
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info:eu-repo/semantics/openAccess |
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http://creativecommons.org/licenses/by-nc-nd/2.5/co/ |
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Escuela de Ingeniería de Antioquia |
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Grupo de Coloides |
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Envigado, Colombia |
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Universidad de Antioquia |
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Urquijo Morales, Jeaneth PatriciaCasanova Yepes, Herley FernandoMorales Aramburo, Álvaro LuisZysler, Roberto Daniel2022-07-18T22:25:28Z2022-07-18T22:25:28Z20141794-1237https://hdl.handle.net/10495/2978910.14508/reia.2013.10.20.13-222463-0950https://revistas.eia.edu.co/index.php/reveia/article/view/577ABSTRACT: The one-step coprecipitation method is used to obtain magnetic nanoparticles controlling the pH (10 and 12), and casein surfactant (CS) concentrations (1 % and 3 % (m/m)). CS has not been used so far for stabilizing magnetic iron oxide ferrofluids. The magnetic nanoparticles have a magnetite core with maghemite in surface, and a shell of polymer. The transmission electron images confirm the crystallinity, particle size distribution in the range of 5-10 nm, and the spinel structure of the nanoparticles. Mössbauer results at 80 K showed line shapes dominated by magnetic relaxation effects with sextets and combinations of sextets and doublets. The interactions of the surfactant with the nanoparticle surface are strong showing at least two surfactant layers. The magnetic behavior was evaluated by moment versus temperature and magnetic field measurements. The nanoparticles showed superparamagnetic behavior at room temperature and blocked (irreversible) behavior at 5 K. The saturation magnetization presented lower values than reported bulk systems due to the presence of a large layer of maghemite. The FC/ZFC magnetization vs. temperature curves confirmed the superparamagnetic nature of the iron oxide particles and the strong interactions for pH 12 samples and weak interactions for pH 10 samples. The particle growth was dominated by the surface properties of the nanoparticles.RESUMEN: Se usa el método de coprecipitación para obtener nanopartículas magnéticas controlando el pH (10 y 12) y la concentración del caseinato de sodio (CS) (1 % y 3 %(m/m)). CS no se ha utilizado hasta el momento para estabilizar ferrofluidos magnéticos. Las partículas muestran un núcleo de magnetita, una capa de maghemita sobre el mismo, y otra capa exterior de la proteína. La microscopía electrónica de transmisión muestra partículas cristalinas, una distribu-ción de tamaños entre 5-10 nm, y la estructura de espinela. Los resultados Mössbauer a 80 K muestran formas de línea dominadas por efectos de relajación magnética. La interacción de la proteína con la superficie de las nanopartículas es fuerte y muestra varias capas de proteína. El comportamiento magnético se evaluó mediante medidas termomagnéticas y de momento versus campo magnético. Estas revelaron un sistema superparamagnético a 300 K y bloqueado a 5 K. La magnetización de saturación mostró valores menores que en el volumen posiblemete debido a la presencia de la maghemita. Las medidas termomagnéticas confirmaron el superparamagnetismo y mostraron que las muestras obtenidas a pH 12 presentan interacciones fuertes mientras que las de pH 10 muestran interacciones débiles. El crecimiento de las partículas fue dominado por las propiedades superficiales de las partículas.COL000787413application/pdfengEscuela de Ingeniería de AntioquiaGrupo de ColoidesEnvigado, Colombiainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_2df8fbb1https://purl.org/redcol/resource_type/ARTArtículo de investigaciónhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/2.5/co/http://purl.org/coar/access_right/c_abf2https://creativecommons.org/licenses/by-nc-nd/4.0/One step synthesis of magnetic particles covered with casein surfactantSíntesis de partículas magnéticas cubiertas con caseinato de sodioEspectroscopia de MossbauerMossbauer spectroscopyNanopartículas magnéticasRevista EIARevista EIAE47E5911Edición Especial 1ORIGINALUrquijoJeaneth_2014_OneStepSynthesisMagneticParticles .pdfUrquijoJeaneth_2014_OneStepSynthesisMagneticParticles .pdfArtículo de investigaciónapplication/pdf2442327https://bibliotecadigital.udea.edu.co/bitstream/10495/29789/1/UrquijoJeaneth_2014_OneStepSynthesisMagneticParticles%20.pdfa414f65e0241c2d13a68d7e7785e4860MD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8823https://bibliotecadigital.udea.edu.co/bitstream/10495/29789/2/license_rdfb88b088d9957e670ce3b3fbe2eedbc13MD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://bibliotecadigital.udea.edu.co/bitstream/10495/29789/3/license.txt8a4605be74aa9ea9d79846c1fba20a33MD5310495/29789oai:bibliotecadigital.udea.edu.co:10495/297892022-07-18 17:25:28.751Repositorio Institucional Universidad de Antioquiaandres.perez@udea.edu.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 |