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Water dispersible upconverting nanoparticles: effects of surface modification on their luminescence and colloidal stability

URN to cite this document:
urn:nbn:de:bvb:355-epub-333099
DOI to cite this document:
10.5283/epub.33309
Wilhelm, Stefan ; Kaiser, Martin ; Würth, Christian ; Heiland, Josef ; Carrillo-Carrion, Carolina ; Muhr, Verena ; Wolfbeis, Otto S. ; Parak, Wolfgang J. ; Resch-Genger, Ute ; Hirsch, Thomas
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Date of publication of this fulltext: 16 Feb 2016 10:08


Abstract

We present a systematic study on the effect of surface ligands on the luminescence properties and colloidal stability of β-NaYF4:Yb3+,Er3+ upconversion nanoparticles (UCNPs), comparing nine different surface coatings to render these UCNPs water-dispersible and bioconjugatable. A prerequisite for this study was a large-scale synthetic method that yields ∼2 g per batch of monodisperse oleate-capped ...

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