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Labelling cells (e.g. stem cells, dendritic cells) with iron oxide nanoparticles is an interesting new tool to monitor such labelled cells in real time by magnetic resonance tomography. [13] [14] Some forms of Iron oxide nanoparticle have been found to be toxic and cause transcriptional reprogramming. [15] [16]
Nanoscale iron particles are sub-micrometer particles of iron metal. They are highly reactive because of their large surface area. In the presence of oxygen and water, they rapidly oxidize to form free iron ions. They are widely used in medical and laboratory applications and have also been studied for remediation of industrial sites ...
Ferrite nanoparticles or iron oxide nanoparticles (iron oxides in crystal structure of maghemite or magnetite) are the most explored magnetic nanoparticles up to date.Once the ferrite particles become smaller than 128 nm [22] they become superparamagnetic which prevents self agglomeration since they exhibit their magnetic behavior only when an external magnetic field is applied.
Iron oxide and cobalt nanoparticles can be loaded onto various surface active materials like alumina to convert gases such as carbon monoxide and hydrogen into liquid hydrocarbon fuels using the Fischer-Tropsch process. [15] [16] Much research on nanomaterial-based catalysts has to do with maximizing the effectiveness of the catalyst coating in ...
While iron oxide used to make nanoparticles is biodegradable, the toxicity of magnetic nanoparticles is still under investigation. Some research has found no signs of damage to cells, while others claim that small (< 2 nm) nanoparticles can diffuse across cell membranes and disrupt organelles. [31] [32]
In particular, she worked on the use of iron and iron oxide nanoparticles as catalysts or magnetically recyclable supports for hydrogenation and oxidation reactions. [3] [4] [5] She developed novel methods to prepare nanomaterials under solvent-free conditions, and explored the catalytic properties of plasmonic nanoparticles. Since 2018, she ...
Research papers include: Related physicochemical, rheological, and dielectric properties of nanocomposites of superparamagnetic iron oxide nanoparticles with polyethyleneglycol [ 6 ] Physicochemical properties of cellulose nanocrystals treated by photo-initiated chemical vapour deposition (PICVD) [ 7 ]
He solved the problem of optimizing the a.c. magnetic response, in vivo, of iron-oxide NPs for any applied frequency: using Monte Carlo simulations he determined the optimal core size to be at the threshold of the superparamagnetic transition, synthesized the required NPs, and controlled their biocompatibility and inter-particle interactions ...