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Antibacterial activity of copper monodispersed nanoparticles into sepiolite

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Abstract

Copper monodispersed nanoparticles (2–5 nm) embedded into submicron particles of sepiolite (Mg8Si12O30(OH)4(H2O)4·8H2O), suitable to be used for biological applications have been obtained after a specific treatment and subsequent reduction process. Cu/Sepiolite particles have revealed as a strong bactericide (similar to Triclosan) so that they were able to decrease the starting microorganism concentrations of Staphylococcus aureus or Escherichia coli by 99.9%.

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Acknowledgements

The Spanish Ministry of Education and Science has supported this research under projects MAT2003-04199-C02 and PTR1995-0832-OP. We thank to Dr. Inmaculada Angulo-Varona (Gaiker Foundation, Spain) for her assistance in the antibacterial test. A.E.C. thanks financial support of the I3P grant by CSIC and European Social Fund (ESF).

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Authors and Affiliations

  1. Instituto de Ciencia de Materiales de Madrid, C/ Sor Juana Ines de la Cruz, 3, Cantoblanco, Madrid, 28049, Spain

    Antonio Esteban-Cubillo, Carlos Pecharromán & José S. Moya

  2. R.&D. Department, Tolsa S.A., Ctra Vallecas-Mejorada del Campo, km 1,6, 28031, Madrid, Spain

    Eduardo Aguilar & Julio Santarén

Authors
  1. Antonio Esteban-Cubillo
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  2. Carlos Pecharromán
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  3. Eduardo Aguilar
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  4. Julio Santarén
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  5. José S. Moya
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Correspondence to José S. Moya.

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Esteban-Cubillo, A., Pecharromán, C., Aguilar, E. et al. Antibacterial activity of copper monodispersed nanoparticles into sepiolite. J Mater Sci 41, 5208–5212 (2006). https://doi.org/10.1007/s10853-006-0432-x

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  • DOI: https://doi.org/10.1007/s10853-006-0432-x

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