نتایج جستجو برای: magnetic nanoparticles
تعداد نتایج: 434724 فیلتر نتایج به سال:
Chemically synthesized superparamagnetic nanoparticles are widely used in biology and medicine for applications that include biomolecule purifications and cell separations, magnetic resonance imaging (MRI) contrast agents, and biomagnetic sensing. Magnetic nanoparticles with high moments are often desired to produce large signals for biomagnetic sensing or to avoid restrictive requirements for ...
in this work, we report on the synthesis of superparamagnetic iron oxide nanoparticles at room temperature using microemulsion template phase consisting of cyclohexane, water, ctab as cationic surfactant and butanol as a cosurfactant. surface modification have been carried out by using poly(ethyleneglycol) (peg). the structure,morphology, and magnetic properties of the products were characteriz...
BACKGROUND Many different types of nanoparticles, magnetic nanoparticles being just a category among them, offer exciting opportunities for technologies at the interfaces between chemistry, physics and biology. Some magnetic nanoparticles have already been utilized in clinical practice as contrast enhancing agents for magnetic resonance imaging (MRI). However, their physicochemical properties a...
The presented study investigates application of polyethylene glycol (PEG)-coated Fe3O4 nanoparticles as an magnetic nanoadsorbent for magnetic solid-phase extraction (SPE) and the selective removal of toxic heavy metals such as mercury (II) from aqueous solutions and their determination using graphite furnace atomic absorption spectrometry (GF-AAS)...
This study investigated the applicability of polyethylene glycol (PEG-4000) coated Fe3O4 magnetic nanoparticles for the selective removal of toxic pb (II) ion from wastewater. The Fe3O4 magnetic nanoparticles of 24 nm were synthesized using a coprecipitation method and characterized by Scanning electron microscopy (SEM), vibratingsample magnetometer (VSM), and X-ray diffraction (XRD). SEM image...
BACKGROUND Induction heating devices using the induction coil and magnetic nanoparticles (MNPs) are the way that the magnetic hyperthermia is heading. OBJECTIVE To facilitate the induction heating of in vivo magnetic nanoparticles in hyperthermia experiments on large animals. METHODS An induction heating device using a planar coil was designed with a magnetic field frequency of 328 kHz. The...
Magnetic Nanoparticles (MNPs) have great potential to overcome many of the shortcomings of the present diagnostic and therapeutic approaches used in cancer diagnosis and treatment. This Literature review discusses the use of Magnetic Nanoparticles focusing mainly on Iron oxide based MNPs in cancer imaging using MRI. Keywords—Cancer, Imaging, Magnetic Nanoparticles, MRI.
Novel tissue-engineered magnetic fibrin hydrogel scaffolds were prepared by the interaction of thrombin-conjugated iron oxide magnetic nanoparticles with fibrinogen. In addition, stabilization of basal fibroblast growth factor (bFGF) was achieved by the covalent and physical conjugation of the growth factor to the magnetic nanoparticles. Adult nasal olfactory mucosa (NOM) cells were seeded in t...
BACKGROUND AND AIMS The great potential of using nanodevices as delivery systems to specific targets in living organisms was first explored for medical uses. In plants, the same principles can be applied for a broad range of uses, in particular to tackle infections. Nanoparticles tagged to agrochemicals or other substances could reduce the damage to other plant tissues and the amount of chemica...
Magnetic nanoparticles (MNPs) are very important systems with potential use in drug delivery systems, ferrofluids, and effluent treatment. In many situations, such as in biomedical applications, it is necessary to cover inorganic magnetic particles with an organic material, such as polymers. A superparamagnetic nanocomposite Fe3O4/poly(maleic anhydride-co-acrylic acid) P(MAH-co-AA) with a core/...
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