The effect of surface functionalization with citric acid on the properties magnetic nanoparticles (MNPs) Zn x Fe 3-x O 4 (x=0; 0.25; 0.5; 0.75; 1.0) synthesized by hydrothermal method was studied. To study MNPs, X-ray diffractometry (XRD) and energy dispersive spectroscopy (EDS) were used. samples phase state MNPs studied using a physical property measurement system (PPMS) Mossbauer (MS). It ha...

Today, technologies based on magnetic nanoparticles (MNPs) are routinely applied to biological systems with diagnostic or therapeutic purposes. The paradigmatic example is the magnetic resonance imaging (MRI), a technique that uses the magnetic moments of MNPs as a disturbance of the proton resonance to obtain images. Similarly, magnetic fluid hyperthermia (MFH) uses MNPs as heat generators to ...

Superparamagnetic magnetite nanoparticles (MNP) of about 10 nm were designed with proper physicochemical characteristics by an economic, biocompatible chemical co-precipitation of Fe and Fe in an ammonia solution, for hyperthermia applications. Synthetic methodology has been developed to get a well dispersed and homogeneous aqueous suspension of MNPs. Citric acid was used to stabilize the magne...

As a novel functional nanomaterial, Fe3O4 magnetic nanoparticles (MNPs) modified by different surfactants have attracted and are attracting worldwide interest. In this research, we introduced two silane coupling agents to modify MNPs instead of single surfactant achieve complete coating functionalization. The modification mechanism was also explained. Techniques such as TEM, XRD, FT-IR, TG-DSC,...

Recently, magnetite nanoparticles (MNPs) have gained great attention for oil spill cleanup due to their unique properties, e.g., high removal efficiency, surface area, and response an external magnetic field. The efficiency of MNPs uptake can be enhanced by functionalizing using different materials. Furthermore, the functionalization MNP these materials promotes chemical stability. This study a...

The use of a microwave assisted solvent-free technique for silica coating of iron magnetic nanoparticles (Fe3O4-MNPs) and their functionalization with three aliphatic diamines: 1,2-ethylenediamine (1,2EDA), 1,5-pentanediamine (1,5PDA) and 1.8-octanediamine (1,8-ODA), were successfully achieved in a very short time. Only 60 min were needed for the nano-adsorbent modification as compared with mor...

A versatile synthetic route based on magnetic Fe3O4 nanoparticle (MNP) prefunctionalization with a phosphonic acid monolayer has been used to covalently bind the gH625 peptide on the nanoparticle surface. gH625 is a membranotropic peptide capable of easily crossing the membranes of various cells including the typical human blood-brain barrier components. A similar synthetic route was used to pr...

To enhance the detection sensitivity of target clinical protein biomarkers, a simple and rapid nanoprobe-based immuno-affinity mass spectrometry assay employing biocompatible monodisperse magnetic nanoparticles (MNPs) is reported herein. The MNPs were synthesized via a streamlined protocol that includes (a) fabrication of core MNPs using the thermal decomposition method to minimize aggregation,...

Magnetic nanoparticles (MNPs) have evolved tremendously during recent years, in part due to the rapid expansion of nanotechnology and their active magnetic core with a high surface-to-volume ratio, while surface functionalization opened door plethora drug, gene bioactive molecule immobilization. Taming reactivity was achieved by various techniques, producing MNPs tailored for diagnosis treatmen...

In the present work, multi-walled carbon nanotubes (MWCNTs) were used as support material for impregnation of metallic nanoparticles (MNPs) produced by green synthesis. The influences plant extracts (pomegranate (Punica Granatum), Eucalyptus, and pecan (Carya illinoinensis, leaves), metal species (copper iron), concentrations, type functionalization (OH COOH) on characteristics obtained materia...