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Synthesis and characterization of lanthanide-doped sodium holmium fluoride nanoparticles for potential application in photothermal therapy

  • Kaushik Das
  • G. A. Kumar
  • Leonardo Mirandola
  • Maurizio Chiriva-Internati
  • Jharna ChaudhuriEmail author
Research Article
  • 7 Downloads

Abstract

Upconversion nanoparticles (UC NPs) in combination with plasmonic materials have great potential for cancer photothermal therapy. Recently, sodium holmium fluoride (NaHoF4) is being investigated for luminescence and magnetic resonance imaging (MRI) contrast agent. Here, we present successful synthesis of excellent quality doped NaHoF4 NPs for possible UC luminescence application and coated for possible photothermal therapy application. Synthesized NaHoF4 nanocrystals were doped with Yb/Er and coated with gold, gold/silica, silver and polypyrrole (PPy). XRD, XPS and TEM were used to determine structure and morphology of the NPs. Strong UC photoluminescence (PL) emission spectra were obtained from the NPs when excited by near-infrared (NIR) light at 980 nm. Cell viability and toxicity of the NPs were characterized using pancreatic and ovarian cancer cells with results showing that gold/ silica coating produced least toxicity followed by gold coating.

Keywords

photothermal therapy upconversion photoluminescence nanoparticle sodium holmium fluoride 

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Notes

Acknowledgements

Authors like to thank Professor Dhiraj Sardar at the Department of Physics and Astronomy, University of Texas at San Antonio, San Antonio, Texas for allowing to perform the photoluminescence work in his lab.

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Copyright information

© Higher Education Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Kaushik Das
    • 1
  • G. A. Kumar
    • 2
    • 3
    • 4
  • Leonardo Mirandola
    • 5
  • Maurizio Chiriva-Internati
    • 5
    • 6
    • 7
  • Jharna Chaudhuri
    • 1
    • 7
    Email author
  1. 1.Department of Mechanical EngineeringTexas Tech UniversityLubbockUSA
  2. 2.Department of Physics and AstronomyUniversity of Texas at San AntonioSan AntonioUSA
  3. 3.Department of Atomic and Molecular PhysicsManipal UniversityManipalIndia
  4. 4.Department of Natural and Physical SciencesNorthwest Vista CollegeSan AntonioUSA
  5. 5.Kiromic BioPharmaHoustonUSA
  6. 6.Department of Gastroenterology, Hepatology and NutritionUniversity of Texas MD Anderson Cancer CenterHoustonUSA
  7. 7.Department of Mechanical and Materials EngineeringPortland State UniversityPortlandUSA

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