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

Masao Kamimura; Yuto Yano; Shuhei Kuraoka; Satoru Suyari; Takuji Ube; Laura Wortmann; Kohei Soga

doi:10.2494/photopolymer.30.265

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

Masao Kamimura, Yuto Yano, Shuhei Kuraoka, Satoru Suyari, Takuji Ube, Laura Wortmann, Kohei Soga

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Keywords: Upconversion, Photopolymerization, Fluorescence imaging, Fluorescence nanothermometry, Second biological window

JOURNAL FREE ACCESS

2017 Volume 30 Issue 3 Pages 265-270

DOI https://doi.org/10.2494/photopolymer.30.265

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Abstract

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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