Luminescence and X-ray Absorption Properties of Uniform Eu:(HO)LuF Nanoprobes.

Nanomaterials (Basel)

Instituto de Ciencia de Materiales de Sevilla (CSIC-US), c/Américo Vespucio, 49. 41092 Sevilla, Spain.

Published: August 2019

Due to the high atomic number of lutetium and the low phonon energy of the fluoride matrix, Lu-based fluoride nanoparticles doped with active lanthanide ions are potential candidates as bioprobes in both X-ray computed tomography and luminescent imaging. This paper shows a method for the fabrication of uniform, water-dispersible Eu:(HO)LuF nanoparticles doped with different Eu contents. Their luminescent properties were studied by means of excitation and emission spectra as well as decay curves. The X-ray attenuation capacity of the phosphor showing the highest emission intensity was subsequently analyzed and compared with a commercial contrast agent. The results indicated that the 10% Eu-doped (HO)LuF nanoparticles fabricated with the proposed polyol-based method are good candidates to be used as dual probes for luminescent imaging and X-ray computed tomography.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6724127PMC
http://dx.doi.org/10.3390/nano9081153DOI Listing

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