Quantum Dots Decorated with Magnetic Bionanoparticles

Authors

  • Belén Fernández,

    1. Departamento de Química Inorgánica Universidad de Granada Avda. Fuentenueva s/n, 18071 Granada (Spain)
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  • Natividad Gálvez,

    Corresponding author
    1. Departamento de Química Inorgánica Universidad de Granada Avda. Fuentenueva s/n, 18071 Granada (Spain)
    • Departamento de Química Inorgánica Universidad de Granada Avda. Fuentenueva s/n, 18071 Granada (Spain).
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  • Rafael Cuesta,

    1. Departamento de Química Inorgánica y Orgánica E.P.S. 23700 Linares (Spain)
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  • Ana B. Hungría,

    1. Departamento Ciencia de Materiales e Ingeniería Metalúrgica y Química Inorgánica Universidad de Cádiz Campus Río San Pedro, 11510 Cádiz (Spain)
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  • José J. Calvino,

    1. Departamento Ciencia de Materiales e Ingeniería Metalúrgica y Química Inorgánica Universidad de Cádiz Campus Río San Pedro, 11510 Cádiz (Spain)
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  • José M. Domínguez-Vera

    Corresponding author
    1. Departamento de Química Inorgánica Universidad de Granada Avda. Fuentenueva s/n, 18071 Granada (Spain)
    • Departamento de Química Inorgánica Universidad de Granada Avda. Fuentenueva s/n, 18071 Granada (Spain).
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  • We are grateful to the MEC (project CTQ2006-02840), Junta de Andalucía (Proyecto Excelencia FQM-02525), and EU I3 Project ESTEEM (Contract n° 026019 RII3) for financial support. N.G. and A.B.H. thank the MEC for a research contract (Ramón y Cajal program). Supporting Information is available online from Wiley InterScience or from the author.

Abstract

A new class of water-soluble, fluorescent, magnetic quantum dots––magnetoferritin bioconjugate––is prepared. The nanostructures are patterned mainly as dimer particles as characterized by high-angle annular dark-field scanning transmission electron microscopy and electron energy loss spectroscopy. Magnetic (high spontaneous magnetization values, superparamagnetism) and fluorescent (narrow emission peaks, uniform brightness) properties of both nanoblocks are maintained in the final nanostructure.

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