Electrostatic vs steric stabilization of Fe{sub 3}O{sub 4} and Co{sub 0.5}Fe{sub 2.5}O{sub 4} nanoparticles

Journal Article · Wed Dec 23 00:00:00 EST 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4938463· OSTI ID:22494499

Domocos, A.; Brinza, F.; Nadejde, C.; Iacomi, F.; Leostean, C.; Turcu, R. ^[1]

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1. National Institute for Research and Development of Isotopic and Molecular Technologies, 65-103 Donath, 400293 Cluj-Napoca (Romania)

Magnetic nanoparticles of magnetite/maghemite and cobalt ferrite Co{sub 0.5}Fe{sub 2.5}O{sub 4} were stabilized in deionized water with perchloric acid and, respectively, sodium oleate in order to prevent agglomeration and sedimentation tendency aiming further biomedical applications. Results obtained through Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), Nanoparticle Tracking Analysis (NTA), and Vibrating Sample Magnetometry (VSM) were discussed comparatively for the four suspensions highlighting specific microstructural and magnetic features of each type of soft magnetic colloidal nanomaterial on the background of coprecipitation method adjusting. The results entitled us to plan in the next research stage biological tests focused on such nanoparticle suspensions impact on cell cultures.

• OSTI ID: 22494499
• Journal Information: AIP Conference Proceedings, Vol. 1700, Issue 1; Conference: PIM 2015: 10. international conference on processes in isotopes and molecules, Cluj-Napoca (Romania), 23-25 Sep 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AGGLOMERATION
COBALT
COPRECIPITATION
FERRITE
FERRITES
IRON OXIDES
MAGNETITE
MICROSTRUCTURE
NANOPARTICLES
PERCHLORIC ACID
SCANNING ELECTRON MICROSCOPY
SEDIMENTATION
SODIUM
STABILIZATION
SUSPENSIONS
VIBRATING SAMPLE MAGNETOMETERS
WATER
X-RAY DIFFRACTION