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Europium Luminescent Polymeric Microspheres Fabricated by Spray Drying Process

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Abstract

The spray drying method was used to prepare luminescent microspheres. These microspheres were prepared by spraying an aqueous solution of dextrin and an europium(III) complex with subsequent drying in a hot medium. The spray dried powder was characterized by scanning electron microscopy (SEM) and photoluminescence spectroscopy (PL). Particle size distribution was estimated from SEM images. The ultrasonic spray drying technique was successfully applied to yield a microparticulated and red luminescent powder composed by the [Eu(dpa)3]3− (dpa = dipicolinic acid) complex incorporated in dextrin microspheres.

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Acknowledgements

The authors gratefully thank Dr R. F. Silva for helpful discussions and FAPESP for financial support and scholarships.

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Authors and Affiliations

  1. Department of Chemistry, FFCLRP, University of São Paulo, Ribeirão Preto, SP, Brazil

    Priscilla Paiva Luz & Osvaldo Antonio Serra

  2. Department of Physics, Chemistry and Biology, FCT-UNESP, Presidente Prudente, SP, Brazil

    Ana Maria Pires

  3. Department of Chemistry, Rare Earth Laboratory, University of São Paulo, Av. Bandeirantes, 3900, 14040-901, Ribeirão Preto, SP, Brazil

    Osvaldo Antonio Serra

Authors
  1. Priscilla Paiva Luz
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  2. Ana Maria Pires
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  3. Osvaldo Antonio Serra
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Correspondence to Osvaldo Antonio Serra.

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Luz, P.P., Pires, A.M. & Serra, O.A. Europium Luminescent Polymeric Microspheres Fabricated by Spray Drying Process. J Fluoresc 18, 695–700 (2008). https://doi.org/10.1007/s10895-008-0343-0

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  • DOI: https://doi.org/10.1007/s10895-008-0343-0

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