This research shows the development of a miniaturized solid-phase extraction method with UV-Vis detection for simultaneous determination dibenzofuran, fluoranthene and phenanthrene using chemometrics approaches. After synthesis Fe3O4 nanoparticles (Fe3O4 NPs), surface was modified by Triton X100 coating. The influence solvent volume, concentration X100, time, sample pH were studied optimized. D...

Hydrothermally assisted magnetic ZnO/Carbon nanocomposites were prepared using the selective biowaste of pomelo orange. Initially, carbon aerogel (CA) was hydrothermally followed by a freeze-drying method. Furthermore, iron oxide nanoparticles deposited onto surface co-precipitation method and we obtained nanocomposite, i.e., Fe3O4/C (MNC). Moreover, ZnO photocatalysts incorporated MNC composit...

A ferromagnetic gold nanoparticle based immune detection assay, exploiting the enhanced signal amplification of inorganic nanozymes, was developed and evaluated for its potential application in Mycobacterium tuberculosis complex (MTBC) organisms, simultaneous identification bovis. Ferromagnetic nanoparticles (Au–Fe3O4 NPs) were prepared their intrinsic peroxidase-like activity exploited to cata...

The primary limitation of magnetic drug targeting (MDT) relates to the strength of an external magnetic field which decreases with increasing distance. Small nanoparticles (NPs) displaying superparamagnetic behaviour are also required in order to reduce embolization in the blood vessel. The small NPs, however, make it difficult to vector NPs and keep them in the desired location. The aims of th...

This contribution reports on the development of two versatile and efficient methods, namely green gamma radiolysis for Fe-Ag nanoparticles (NPs) synthesis, characterization, further their growth inhibition potential some spoilage microorganisms. Green Ag/Fe2O3 NPs were obtained at [3:1], annealing temperature 800 °C 2 h, irradiated Ag/Fe3O4 [7:1], a 50 kGy dose. The characterization techniques ...

In these recent years, magnetite (Fe3O4) has witnessed a growing interest in the scientific community as a potential material in various fields of application namely in catalysis, biosensing, hyperthermia treatments, magnetic resonance imaging (MRI) contrast agents and drug delivery. Their unique properties such as metal-insulator phase transitions, superconductivity, low Curie temperature, and...

Using macrophage recruitment in tumors, we develop active, transportable, cancer theragnostic macrophage-based microrobots as vector to deliver therapeutic agents to tumor regions. The macrophage-based microrobots contain docetaxel (DTX)-loaded poly-lactic-co-glycolic-acid (PLGA) nanoparticles (NPs) for chemotherapy and Fe3O4 magnetic NPs (MNPs) for active targeting using an electromagnetic act...

Despite a large number of developments of noble metal (or metal oxide) NP-based catalysts, it has been a great challenge to prepare high-performance recyclable catalysts with integrated functionalities that can be used in various solvent media. Here, we report on layer-by-layer (LbL) assembled multicatalysts with high catalytic performance, showing high dispersion and recycling stability in org...

The main objective of this research was to synthesize and characterize gold-coated Fe3O4 /SiO2 nanoshells for clinical applications. Magnetite nanoparticles (NPs) were prepared via co-precipitation. The results showed that smaller particles can be synthesized by decreasing the NaOH concentration, which in our case this corresponded to 35 nm by using 0.9 M of NaOH at 750 rpm. The NPs were then m...