Artículos en revistas:
Study of the Dependency of the Specific Power Absorption Rate on Several Characteristics of the Excitation Magnetic Signal when Irradiating a SPION-containing Ferrofluid
Study of the Dependency of the Specific Power Absorption Rate on Several Characteristics of the Excitation Magnetic Signal when Irradiating a SPION-containing Ferrofluid
Año:2016
Áreas de investigación
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Bioinstrumentación, -
Interacción entre campos electromagnéticos y tejidos biológicos
Datos
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Descripción
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| Magnetic hyperthermia mediated by superparamagnetic particles is mainly based in sinusoidal waveforms as excitation signals. Temperature changes are conventionally explained by rotation of the particles in the surrounding medium. This is a hypothesis quite questionable since habitual experimental setups only produce changes in the magnetic module, not in the field lines trajectories. Theoretical results were tested by changing the waveform of the exciting signal in order to compare non-sinusoidal signals against sinusoidal signals. Experiments were done at different frequencies: 200 KHz, 400 KHz, 600 KHz, 800 KHz and 1 MHz. Superparamagnetic Iron Oxide samples (SPION), made of magnetite (Fe3O4) and suspended in water (100 mg/ml), were used. Magnetic field strength varies from 0.1 ± 0.015 KA/m to 0.6 ± 0.015 KA/m. In this study was observed that the power loss depends on the applied frequency: for 1 to 2.5 RMS current the responses for each signal are part of the higher section of the exponential function, and for 3.5 to 8 RMS current the response is clearly the decrement exponential function?s tale (under 1 × 103 LER/gr). | |
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Internacional
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No |
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JCR del ISI
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No |
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Título de la revista
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Journal of Magnetics |
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ISSN
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1226-1750 |
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Factor de impacto JCR
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0,42 |
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Información de impacto
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Volumen
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21 |
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DOI
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Número de revista
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Desde la página
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460 |
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Hasta la página
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467 |
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Mes
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SIN MES |
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Ranking
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Participantes
- Autor: Alejandra Mina Rosales (UPM)
- Autor: Elena Aznar (Centro de Reconocimiento Molecular y Desarrollo Tecnológico (IDM).)
- Autor: Carmen Coll (Centro de Reconocimiento Molecular y Desarrollo Tecnológico (IDM).)
- Autor: Ruben Antonio García Mendoza (UPM)
- Autor: Ana Lorena Urbano Bojorge (UPM)
- Autor: Nazario Felix Gonzalez (UPM)
- Autor: Ramón Martínez-Máñez (Centro de Reconocimiento Molecular y Desarrollo Tecnológico (IDM).)
- Autor: Francisco del Pozo Guerrero (UPM)
- Autor: Jose Javier Serrano Olmedo (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
- Creador: Grupo de Investigación: Tecnologías para Ciencias de la Salud
- Departamento: Tecnología Fotónica y Bioingeniería
S2i 2023 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)