In:
Journal of Nanotechnology, Hindawi Limited, Vol. 2018 ( 2018), p. 1-9
Abstract:
The Pr 3+ :LaF 3 (C Pr = 3, 7, 12, 20, 30%) nanoparticles were characterized by means of high-resolution transmission electron microscopy, X-ray diffraction, optical spectroscopy, energy dispersive X-ray spectroscopy, dynamic light scattering, and MTT assay. It was revealed that the average diameter of all the NPs is around 14–18 nm. The hydrodynamic radius of the Pr 3+ :LaF 3 (C Pr = 7%) nanoparticles strongly depends on the medium. It was revealed that hydrodynamic radii of the Pr 3+ :LaF 3 (C Pr = 7%) nanoparticles in water, DMEM, and RPMI-1640 biological mediums were 18 ± 5, 41 ± 6, and 186 ± 8 nm, respectively. The Pr 3+ :LaF 3 (C Pr = 7%) nanoparticles were nontoxic at micromolar concentrations toward COLO-320 cell line. The lifetime curves were fitted biexponentially, and for the Pr 3+ :LaF 3 (C Pr = 7%) NPs, the luminescence lifetimes of Pr 3+ ions were 480 ± 2 and 53 ± 5 nanosec.
Type of Medium:
Online Resource
ISSN:
1687-9503
,
1687-9511
DOI:
10.1155/2018/8516498
Language:
English
Publisher:
Hindawi Limited
Publication Date:
2018
detail.hit.zdb_id:
2523901-6
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