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Keywords:

  • nanophosphors;
  • gadolinium vanadate;
  • photoluminescence;
  • paramagnetic nanoparticles;
  • biocompatibility
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A bifunctional luminomagnetic ≈30 nm Gd1-xEuxVO4 nanophosphor is synthesized using a facile sol–gel method. The nanophosphor is observed to produce both paramagnetic behavior and a highly efficient red emission peaking at 618 nm. Probing the luminomagnetic nanophosphor using photoluminescence, time-resolved spectroscopy, magnetization measurements, and a cytotoxicity assay reveal its suitability for biological applications, in particular, cell labeling and high-contrast imaging.