Open AccessSynthesis and characterization of dextran-coated iron oxide nanoparticles
Author(s) -
Andra Mihaela Predescu,
Ecaterina Matei,
Andrei Berbecaru,
Cristian Pantilimon,
Claudia Drăgan,
Ruxandra Vidu,
Cristian Predescu,
V. Kuncser
Publication year - 2018
Publication title -
royal society open science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.84
H-Index - 51
ISSN - 2054-5703
DOI - 10.1098/rsos.171525
Subject(s) - iron oxide nanoparticles , nanoparticle , dextran , transmission electron microscopy , fourier transform infrared spectroscopy , chemical engineering , iron oxide , materials science , scanning electron microscope , magnetic nanoparticles , oxide , coating , nanotechnology , chemistry , chromatography , composite material , metallurgy , engineering
Synthesis and characterization of iron oxide nanoparticles coated with a large molar weight dextran for environmental applications are reported. The first experiments involved the synthesis of iron oxide nanoparticles which were coated with dextran at different concentrations. The synthesis was performed by a co-precipitation technique, while the coating of iron oxide nanoparticles was carried out in solution. The obtained nanoparticles were characterized by using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction spectrometry, Fourier transform infrared spectroscopy and superconducting quantum interference device magnetometry. The results demonstrated a successful coating of iron oxide nanoparticles with large molar weight dextran, of which agglomeration tendency depended on the amount of dextran in the coating solution. SEM and TEM observations have shown that the iron oxide nanoparticles are of about 7 nm in size.