Multifunctional nanocomposites that have multiple therapeutic functions together with real-time imaging capabilities have attracted intensive concerns in the diagnosis and treatment of cancer. This study developed epidermal growth factor receptor (EGFR) antibody-directed polydopamine-coated Fe3O4 nanoparticles (Fe3O4@PDA NPs) for magnetic resonance imaging and antitumor chemo-photothermal thera...

Atomic interdiffusion between FePt and Fe3O4 nanoparticles in annealed FePt-based nanocomposite magnets has been studied by means of structural and magnetic characterizations. The results show that the Fe3Pt phase is formed during the annealing only when the mass ratio x of Fe3O4/FePt is larger than 1/20. When x 1/20, only FePt single phase is formed. It is interesting to find that the coercivi...

We present an in situ experimental investigation of the magnetic and electronic properties of individual iron nanoparticles with sizes ranging from 8 to 22 nm as a function of oxygen exposure (0-80 L), using X-ray photoemission electron microscopy. The X-ray absorption spectroscopy results show that, irrespective of size and magnetic state, the early stages of the Fe nanoparticle oxidation occu...

The Fe3O4@mSiO2 nanocarrier that consisted of a magnetic Fe3O4 nanoparticle core and a mesoporous silica (mSiO2) shell was synthesized. It shows a uniform sphere morphology about 65 nm in diameter. Considering the magnetic hyperthermia of Fe3O4 under an alternating magnetic field (AMF), a thermo-sensitive polymer, poly[(ethylene glycol)-co-(L-lactide)] (P(EO-co-LLA)), was used as "gatekeeper" c...

A novel chemical "top-down" method has been employed to prepare tiny Fe3O4 nanobelts. Uniform Fe3O4 nanobelts were obtained by solvothermal reduction of exfoliated FeOCl layers with the assistance of high polar solvents and a PEO-PPO-PEO stabilizer. We also studied the superparamagnetic properties of Fe3O4 nanobelts, which exhibit a magnetic saturation value as high as ∼53 emu g(-1) at room tem...

in order to study the effects of magnetic field, silver nano particles and micronutrient fertilizers on sugar beet, an experiment was conducted at razavi research and technology institute, mashhad, iran. experiment carried out with seven treatments based on randomized complete block design with three replications. treatments included (t1) magnetic field and silver nano particles + kemira fertil...

a simple, highly sensitive, accurate and selective method for determination of trace amounts of cu2+ in water samples .in this paper, chitosan was used to encapsulate nano-fe3o4 and produce a nano-fe3o4-chitosan sorbent based new sorbent was prepared. this was treated with ethylenediamine (ed) in another solvent-free procedure for the formation of a novel nano-fe3o4-chitosan-ed.flame atomic abs...

A coagulation (FeCl3)-ultrafiltration process was used to treat two different raw waters with/without the presence of Fe3O4 nanoparticle contaminants. The existence of Fe3O4 nanoparticles in the raw water was found to increase both irreversible and reversible membrane fouling. The trans-membrane pressure (TMP) increase was similar in the early stages of the membrane runs for both raw waters, wh...

A magnetic nanocomposite film with the capability of reversibly collecting functionalized magnetic particles was fabricated by simultaneously imposing two orthogonal stimuli (electrical and magnetic). We demonstrate that cathodic codeposition of chitosan and Fe3O4 nanoparticles while simultaneously applying a magnetic field during codeposition can (i) organize structure, (ii) confer magnetic pr...