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Iron oxide nanoparticles are iron oxide particles with diameters between about 1 and 100 nanometers. The two main forms are magnetite (Fe3O4) and its oxidized form maghemite (γ-Fe2O3). They have attracted extensive interest due to their superparamagnetic properties and their potential applications in many fields (although cobalt and nickel are also highly magnetic materials, they are toxic and easily oxidized).

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  • Nanopartícules superparamagnètiques d'òxid de ferro (ca)
  • Iron oxide nanoparticle (en)
  • Наночастинки оксиду заліза (uk)
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  • Les nanopartícules superparamagnètiques d'òxid de ferro o SPIONs (de l'anglès Superparamagnètic Iron Oxide Nanoparticles) són partícules compostes d'òxids de ferro, en especial magnetita (Fe₃O₄) i maghemita (γ-Fe₂O₃), amb diàmetres inferiors a 100 nanòmetres, el que els hi confereix propietats de superparamagnetisme. La presència d'aquest fenomen ha atret un gran interès en el seu estudi degut a les aplicacions potencials en diferents camps. Tot i que no són les úniques nanopartícules superparamagnètiques que existeixen, la seva principal alternativa són nanopartícules metàl·liques compostes principalment de cobalt i níquel, materials que en la seva forma metàl·lica són força tòxics i fàcilment oxidables. Això fa a les SPIONs una millor alternativa, especialment en camps com la biomedicina (ca)
  • Iron oxide nanoparticles are iron oxide particles with diameters between about 1 and 100 nanometers. The two main forms are magnetite (Fe3O4) and its oxidized form maghemite (γ-Fe2O3). They have attracted extensive interest due to their superparamagnetic properties and their potential applications in many fields (although cobalt and nickel are also highly magnetic materials, they are toxic and easily oxidized). (en)
  • Наночастинки оксиду заліза — це частинки оксиду заліза діаметром приблизно від 1 до 100 нанометрів. Дві основні форми — магнетит (Fe3O4) та його окислена форма маггеміт (γ-Fe2O3). Вони викликали великий інтерес завдяки своїм суперпарамагнітним властивостям та потенційним застосуванням у багатьох сферах (хоча Co і Ni також є високомагнітними матеріалами, вони токсичні та легко окислюються). (uk)
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