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NMR relaxometric properties and cytotoxicity of Gd2O3 nanoparticle suspensions in an organic liquid

  • Branka Babić-Stojić
  • Vukoman Jokanović
  • Dušan Milivojević
  • Miroslav Požek
  • Zvonko Jagličić
  • Darko Makovec
  • Katarina Arsikin
  • Verica Paunović
Research Paper
  • 283 Downloads

Abstract

Gd2O3 nanoparticles and their agglomerates from approximately 10 to 80 nm in size suspended in an organic liquid were synthesized via polyol route. The reaction between diethylene glycol and added acetic acid, which occurred simultaneously with the synthesis of Gd2O3 nanoparticles, was catalyzed by sodium bisulfate to transform as much as possible diethylene glycol in corresponding ester at the end of complete reaction. The produced nanosized material of gadolinium oxide was investigated by TEM, DLS, FTIR spectroscopy, and NMR relaxometry. Biological evaluation of this material was done by MTT and crystal violet assays to determine the cell viability. Longitudinal and transverse relaxivities of water-diluted Gd2O3 nanoparticle suspensions estimated to be r 1 = 13.6 and r 2 = 14.7 s−1 mM−1 are about three times higher compared to the relaxivities obtained for standard contrast agent Gd-DTPA (Magnevist). Good MRI signal intensities of the water-diluted Gd2O3 nanoparticle suspensions were recorded in the Gd concentration range 0.2–0.3 mM for which the suspensions were not toxic exhibiting simultaneously higher signal intensities than those for Magnevist in the Gd concentration range 0.4–1 mM for which this standard contrast agent was not toxic. These properties make the produced Gd2O3 nanoparticle material promising for potential application as MRI contrast agent.

Keywords

Gadolinium oxide Nanoparticles Relaxivity Magnetic resonance imaging Contrast agents Toxicity Environmental and health effects 

Notes

Acknowledgments

Financial support for this study was granted by the Ministry of Education, Science and Technological Development of the Republic of Serbia, Projects Nos. 172026 and 41025. The authors would like to thank Mr Lazar Lazić and PANACEA Polyclinic in Belgrade for MR imaging experiments on a 1.5 T Siemens scanner.

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Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  • Branka Babić-Stojić
    • 1
  • Vukoman Jokanović
    • 1
  • Dušan Milivojević
    • 1
  • Miroslav Požek
    • 2
  • Zvonko Jagličić
    • 3
  • Darko Makovec
    • 4
  • Katarina Arsikin
    • 5
  • Verica Paunović
    • 5
  1. 1.Vinča Institute of Nuclear SciencesUniversity of BelgradeBelgradeSerbia
  2. 2.Department of Physics, Faculty of ScienceUniversity of ZagrebZagrebCroatia
  3. 3.Institute of Mathematics, Physics and MechanicsLjubljanaSlovenia
  4. 4.Department for Materials SynthesisJožef Stefan InstituteLjubljanaSlovenia
  5. 5.School of Medicine, Institute of Microbiology and ImmunologyUniversity of BelgradeBelgradeSerbia

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