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

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.
Authors:
; ; ; ; ;  [1] ; ;  [2]
  1. ‘Alexandru Ioan Cuza’ University, Physics Faculty, 11A Carol I, 700506 Iasi (Romania)
  2. National Institute for Research and Development of Isotopic and Molecular Technologies, 65-103 Donath, 400293 Cluj-Napoca (Romania)
Publication Date:
OSTI Identifier:
22494499
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1700; Journal 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)
Country of Publication:
United States
Language:
English
Subject:
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