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Probing a Bifunctional Luminomagnetic Nanophosphor for Biological Applications: a Photoluminescence and Time‐Resolved Spectroscopic Study
Author(s) -
Gupta Bipin Kumar,
Rathee Vimal,
Narayanan Tharangattu N.,
Thanikaivelan Palanisamy,
Saha Avishek,
Singh S. P.,
Shanker V.,
Marti Angel A.,
Ajayan Pulickel M.
Publication year - 2011
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201100441
Subject(s) - bifunctional , photoluminescence , materials science , spectroscopy , paramagnetism , nanotechnology , analytical chemistry (journal) , chemical engineering , optoelectronics , chemistry , organic chemistry , catalysis , engineering , physics , quantum mechanics
A bifunctional luminomagnetic ≈30 nm Gd 1‐x Eu x VO 4 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.