Journal Article10.1021/CM020994N
Magnetite Nanoparticle Dispersions Stabilized with Triblock Copolymers
L. A. Harris,Jonathan D. Goff,A. Y. Carmichael,J. S. Riffle,J. Jonathan Harburn,and T. G. St. Pierre,Martin Saunders +6 more
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TL;DR: In this paper, the authors developed complexes of magnetite nanoparticles coated with well-defined hydrophilic polymers so that they could be dispersed in aqueous fluids, and the results showed that these polymers can bind irreversibly to magnetite at the physiological pH.
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Abstract: Magnetic nanoparticles that display high saturation magnetization and high magnetic susceptibility are of great interest for medical applications. Magnetite nanoparticles display strong ferrimagnetic behavior and are less sensitive to oxidation than magnetic transition metal nanoparticles such as cobalt, iron, and nickel. For in vivo applications, well-defined organic coatings are needed to surround the magnetite nanoparticles and prevent any aggregation. The goal of this research was to develop complexes of magnetite nanoparticles coated with well-defined hydrophilic polymers so that they could be dispersed in aqueous fluids. Focal points have included the following: (1) Investigations of polymer systems that bind irreversibly to magnetite at the physiological pH, (2) the design of block copolymers with anchor and tail blocks to enable dispersion in biological fluids, and (3) investigations of copolymer block lengths to maximize the concentration of bound magnetite. Hydrophilic triblock copolymers with ...
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References
Structural and magnetic properties of nanoscale iron oxide particles synthesized in the presence of dextran or polyvinyl alcohol
TL;DR: Magnetite/maghemite nanoparticles were synthesized in the presence of either dextran or polyvinyl alcohol, yielding cluster- and necklace-like aggregates, respectively as mentioned in this paper.
Endocytosis of dextran and silan-coated magnetite nanoparticles and the effect of intracellular hyperthermia on human mammary carcinoma cells in vitro
Andreas Jordan,Regina Scholz,Peter Wust,Hermann Schirra,Thomas Schiestel,Helmut Schmidt,Roland Felix +6 more
TL;DR: The selective “remote inactivation” of cancer cells by an AC magnetic field has been demonstrated in vitro and endocytosis and hyperthermia efficacy of silan and dextran magnetite was investigated.
Ionic ferrofluids: A crossing of chemistry and physics
TL;DR: In this article, a phase diagram is built up as a function of ionic strength and preliminary results on the magnetic-field-induced phase separation are given, where Colloidal stability is considered with respect to various particle interaction parameters.
Biological and biomedical aspects of magnetic fluid technology
TL;DR: Magnetic fluid technology has undergone study and development in its biological and biomedical aspects, principally in image enhancement and in the use of a variety of separation techniques in the purification of biological materials or in the identification of very small amounts of organisms, cells, or genomic material as discussed by the authors.