Near-Infrared to Visible Upconversion Emission Induced Photopolymerization: Polystyrene Shell Coated NaYF<sub>4</sub> Nanoparticles for Fluorescence Bioimaging and Nanothermometry

  • Kamimura Masao
    Department of Materials Science and Technology, Tokyo University of Science Imaging Frontier Center (IFC), Research Institute for Science and Technology (RIST), Tokyo University of Science
  • Yano Yuto
    Department of Materials Science and Technology, Tokyo University of Science
  • Kuraoka Shuhei
    Department of Materials Science and Technology, Tokyo University of Science
  • Suyari Satoru
    Department of Materials Science and Technology, Tokyo University of Science
  • Ube Takuji
    Department of Materials Science and Technology, Tokyo University of Science
  • Wortmann Laura
    Department of Materials Science and Technology, Tokyo University of Science
  • Soga Kohei
    Department of Materials Science and Technology, Tokyo University of Science Imaging Frontier Center (IFC), Research Institute for Science and Technology (RIST), Tokyo University of Science

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  • Near-Infrared to Visible Upconversion Emission Induced Photopolymerization : Polystyrene Shell Coated NaYF₄ Nanoparticles for Fluorescence Bioimaging and Nanothermometry

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In this study, upconversion (UC) photopolymerization of non-polar polystyrene (PSt) shells on rare-earth doped ceramic nanophosphors (RED-CNPs) was investigated to improve the optical properties. The PSt layer was prepared on rare-earth doped NaYF4 NP surfaces by UC photopolymerization under 980 nm near-infrared (NIR) irradiation. The obtained PSt-modified NaYF4 NPs are promising candidates for fluorescence imaging and as nanothermometry agents.

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