TY - JOUR
T1 - Versatile ferrofluids based on polyethylene glycol coated iron oxide nanoparticles
AU - Brullot, W.
AU - Reddy, N. K.
AU - Wouters, J.
AU - Valev, V. K.
AU - Goderis, B.
AU - Vermant, J.
AU - Verbiest, T.
PY - 2012/6/1
Y1 - 2012/6/1
N2 - Versatile ferrofluids based on polyethylene glycol coated iron oxide nanoparticles were obtained by a facile protocol and thoroughly characterized. Superparamagnetic iron oxide nanoparticles synthesized using a modified forced hydrolysis method were functionalized with polyethylene glycol silane (PEG silane), precipitated and dried. These functionalized particles are dispersable in a range of solvents and concentrations depending on the desired properties. Examples of tunable properties are magnetic behavior, optical and magneto-optical response, thermal features and rheological behavior. As such, PEG silane functionalized particles represent a platform for the development of new materials that have broad applicability in e.g. biomedical, industrial or photonic environments. Magnetic, optical, magneto-optical, thermal and rheological properties of several ferrofluids based on PEG coated particles with different concentrations of particles dispersed in low molecular mass polyethylene glycol were investigated, establishing the applicability of such materials.
AB - Versatile ferrofluids based on polyethylene glycol coated iron oxide nanoparticles were obtained by a facile protocol and thoroughly characterized. Superparamagnetic iron oxide nanoparticles synthesized using a modified forced hydrolysis method were functionalized with polyethylene glycol silane (PEG silane), precipitated and dried. These functionalized particles are dispersable in a range of solvents and concentrations depending on the desired properties. Examples of tunable properties are magnetic behavior, optical and magneto-optical response, thermal features and rheological behavior. As such, PEG silane functionalized particles represent a platform for the development of new materials that have broad applicability in e.g. biomedical, industrial or photonic environments. Magnetic, optical, magneto-optical, thermal and rheological properties of several ferrofluids based on PEG coated particles with different concentrations of particles dispersed in low molecular mass polyethylene glycol were investigated, establishing the applicability of such materials.
KW - Ferrofluid
KW - Magnetite
KW - Magneto-optics
KW - Polyethylene glycol
KW - Rheology
UR - http://www.scopus.com/inward/record.url?scp=84857652557&partnerID=8YFLogxK
UR - http://dx.doi.org/10.1016/j.jmmm.2012.01.032
U2 - 10.1016/j.jmmm.2012.01.032
DO - 10.1016/j.jmmm.2012.01.032
M3 - Article
AN - SCOPUS:84857652557
SN - 0304-8853
VL - 324
SP - 1919
EP - 1925
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
IS - 11
ER -