magnetic nanoparticles – Page 3

Hyaluronan-modified Magnetic Hydroxyapatite Nanoparticles for Hyperthermia

Wu H.C., Hsieh S.-Y., Wang T.-W., Tatung University, TW

The success of tumor therapy is determined by the efficiency with which the killing of tumor cells is achieved under conditions of no or only slight damage to the normal tissues. Because of its high [...]

Magnetic nanoparticles as components of magnetoresistance sensors: the gGMR-sensor

Weddemann A., Ennen I., Regtmeier A., Hütten A., Zahn M., Massachusetts Institute of Technology, US

Superparamagnetic microbeads and nanoparticles have a wide range of applications. Due to their magnetic stray field they influence soft magnetic material nearby which allows for the magnetic recognition of such particles by magnetoresistive sensors. Such [...]

Surface Modification of Iron Oxide (Fe3O4) Micro- and Nano-particles with Stimuli Responsive Polymers

Vasquez E.S., Nicholson W.B., Walters K.B., Mississippi State University, US

In this work, the synthesis of stimuli responsive polymer brushes was carried out using surface-initiated atom transfer radical polymerization (ATRP) on iron oxide (Fe3O4) micro- and nano-particles. Bare Fe3O4 nanoparticles (20 nm nom. d(H)) were [...]

Magnetically Induced Drop Movement on Nanorough Micropatterned Nanocomposites

Milionis A., Fragouli D., Anyfantis G.C., Bayer I., Cingolani R., Athanassiou A., Italian Institute of Technology, IT

Hybrid organic/inorganic surfaces are engineered by exploiting photo-lithographically tailored patterns of SU-8 polymer nanocomposites containing 2% wt colloidal nanoparticles of iron oxide. The role of the magnetic nanoparticles has two aspects. The first one is [...]

Hydrothermal approach to a carbon graphite encapsulated FeCo nanocrystals for diagnosis, hyperthermia therapy and siRNA delivery

Park J.K., Jung J.J., Subramaniam P., Shah B., Kim C.J., Lee J-K, Lee K.B., Lee J-K, Lee K.B., Korea Research Institute of Chemical Technology, KR

An effective therapeutic approach against cancer requires the combination of several modalities such as chemotherapy, radiation, and hyperthermia. However, the development of multifunctional nanomaterial-based systems that can provide the combined therapeutics and molecular imaging with [...]

Novel Mycotoxin Collection System using Magnetic Nanoparticles for Determination of Aflatoxin B1 and Zearalenone in Feed

Cha S-H, Lee J-K, Jung H-S, Kim H.-J., Kim S-H, Kim H.-J., Kim S-H, Choi C-U, Kang H-G, National Veternary Research and Quarantine Service, KR

Introduction: A common method for determination of mycotoxins contaminated in feeds combines immunoaffinity chromatography (IAC) and high-performance liquid chromatography (HPLC) with UV detection1,2. However, the IAC method to collect mycotoxins is expensive and time-consuming. Moreover, [...]

Computational Modeling of Electromagnetically Induced Heating of Magnetic Nanoparticle Materials for Hyperthermic Cancer Treatment

Rast L., Harrison J.G., University of Alabama at Birmingham, US

We present results on the computational modeling of electromagnetically induced heating for the purpose of hyperthermic cancer treatment with magnetic nanoparticle fluids. Magnetic hyperthermia can therefore be used for direct targeting and destruction of tumors [...]

Structural Control of Porous Polymeric Materials through Magnetic Gelation

Furlan M., Lattuada M., Morbidelli M., ETH Zürich, CH

A novel procedure, called magnetic gelatio, is introduced to prepare porous polymeric materials with controlled anisotropic structure. The materials are obtained by destabilizing aqueous dipsersions of magnetic polymer nanoparticles in the presence of magnetic fields, [...]

Immobilization of Enzymes on Functionalized Magnetic Nanoparticles for Efficient Biocatalysis

Wang D.I.C., Wang W., Li Z., Wang D.I.C., Wang W., National University of Singapore, SG

In this paper, iron oxide magnetic nanoparticles were synthesized by co-precipitation method and were functionalized with aldehyde group. Spherical superparamagnetic nanoparticles with diameter of 100 nm were obtained based on the results of field emission [...]

Studies of Ferrite Based Magnetic Nanoparticle Uptake and Magnetocytolysis Effects on Model Cell Cultures

Rodríguez H.L., Barrera C., Herrera A., Ayala V., Latorre M., Rinaldi C., Torres-Lugo M., University of Puerto Rico, PR

To date, two main avenues by which nanoparticles appear to induce cell death have been proposed, magnetocytolysis and magnetic fluid hyperthermia (MFH). Little is known regarding the mechanisms of cell death and the main factors [...]