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Magnets: Artificial Magnetic Bacteria: Living Magnets at Room Temperature (Adv. Funct. Mater. 23/2014)

Authors

  • Miguel Martín,

    1. Departamento de Química Inorgánica, Instituto de Biotecnología, Facultad de Ciencias, Universidad de Granada, Granada, Spain
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  • Fernando Carmona,

    1. Departamento de Química Inorgánica, Instituto de Biotecnología, Facultad de Ciencias, Universidad de Granada, Granada, Spain
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  • Rafael Cuesta,

    1. Departamento de Química Inorgánica y Orgánica, Linares, Spain
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  • Deyanira Rondón,

    1. Biosearch S. A. Camino de Purchil, Granada, Spain
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  • Natividad Gálvez,

    Corresponding author
    1. Departamento de Química Inorgánica, Instituto de Biotecnología, Facultad de Ciencias, Universidad de Granada, Granada, Spain
    • Departamento de Química Inorgánica===, Instituto de Biotecnología===, Facultad de Ciencias===, Universidad de Granada===, 18071=== Granada=== Spain=== ===

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  • José M. Domínguez-Vera

    Corresponding author
    1. Departamento de Química Inorgánica, Instituto de Biotecnología, Facultad de Ciencias, Universidad de Granada, Granada, Spain
    • Departamento de Química Inorgánica===, Instituto de Biotecnología===, Facultad de Ciencias===, Universidad de Granada===, 18071=== Granada=== Spain=== ===

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Abstract

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With the aim of mimicking the functionality of magnetotactic bacteria, N. Gálvez, J. M. Domínguez-Vera, and co-workers create ‘artificial magnetic bacteria’. The decoration of non-magnetic probiotic bacteria with several thousands of magnetic nanoparticles on their external surfaces induces them to behave as magnets at room temperature. Therefore, they become directionally arranged following the magnetic field lines when submitted to a magnetic field, as it occurs with magnetic bacteria. After grafting the magnetic nanoparticles, the artificial magnetic bacteria remain alive. In fact they are converted into living magnets at room temperature.

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