Publication: Estrategias de síntesis de nanopartículas magnéticas Mono-Núcleo y Multi-Núcleo de óxidos de hierro para aplicaciones en biomedicina
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2018-08-22
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Universidad Complutense de Madrid
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Abstract
En esta tesis, las nanoparticulas de óxidos de hierro han sido el caso del estudio (específicamente las fases magnetita y maghemita de los óxidos de hierro) ya que este nanomaterial presenta algunas características y ventajas interesantes, que surgen de su composición química y estructura atómica: pueden ser manipuladas por un gradiente de campo magnético externo y pueden responder a un campo magnético externo que cambia con el tiempo con resultados ventajosos relacionados con la transferencia energética de dicho campo de excitación a las nanopartículas.[1] Por último, las nanopartículas magnéticas afectan a la relaxividad de los protones circundantes. En base a estos atributos, las nanopartículas magnéticas son uno de los materiales funcionales emergentes tanto en la industria de la ciencia de materiales como en biomedicina...
In this thesis, iron oxides nanoparticles has been the case of study (more specifically magnetite and maghemite iron oxide phases), since this nanomaterial presents some interesting features and advantages that arise from its chemical composition and atomic structure. First, the most important feature is that magnetic nanoparticles obey Coulomb’s law,[1] and this means that they can be manipulated by an external magnetic field gradient. Moreover, magnetic nanoparticles can be made to resonantly respond to a time-varying magnetic field, with advantageous results related to the transfer of energy from the exciting field to the nanoparticle.[2] Finally, magnetic nanoparticles affect the relaxivity of surrounding protons. Based on these features, magnetic nanoparticles are emerging functional materials in material science industry and biomedicine...
In this thesis, iron oxides nanoparticles has been the case of study (more specifically magnetite and maghemite iron oxide phases), since this nanomaterial presents some interesting features and advantages that arise from its chemical composition and atomic structure. First, the most important feature is that magnetic nanoparticles obey Coulomb’s law,[1] and this means that they can be manipulated by an external magnetic field gradient. Moreover, magnetic nanoparticles can be made to resonantly respond to a time-varying magnetic field, with advantageous results related to the transfer of energy from the exciting field to the nanoparticle.[2] Finally, magnetic nanoparticles affect the relaxivity of surrounding protons. Based on these features, magnetic nanoparticles are emerging functional materials in material science industry and biomedicine...
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Tesis inédita de la Universidad Complutense de Madrid, Facultad de Ciencias Químicas, Departamento de Química Física I, leída el 27-10-2017.