Themed collection Magnetic Nanoparticles: From Massart Method to a Cascade of Innovations

High-entropy strategy has attracted researchers’ attention for obtaining NASICONs with outstanding electrochemical performance while maintaining a simple synthesis route and low costs, paving the way for mass production of sodium ion batteries.

Magnetic nanoparticles (MNPs) derived from the Massart coprecipitation method have played a pioneering role in bridging materials science and biology.

A review of plant extract mediated Fe₃O₄ nanoparticles, their characterization, pollutant removal efficiency, interaction mechanisms, toxicity, reusability, and effects of interfering ions on water treatment is presented.

Magnetic hyperthermia extends beyond oncology, harnessing nanoscale heat generation for advanced bioapplications, catalytic processes, and environmental technologies.

Silica spacers tune inter-core interactions in clustered SPIONS, enabling cooperative magnetisation switching and enhanced Magnetic Particle Imaging (MPI) performance.

Platinum-decorated iron carbide nanoparticles (Pt@ICNPs) are prepared, characterized, and applied in magnetically induced catalysis for the hydrogenation of various functionalities under mild conditions.

25 nm Octopod Mn–Fe oxide nanoparticles reduce crystal anisotropy, leading to faster relaxation times, a narrower MPI point spread function (PSF), and consequently improved spatial resolution.

Structural and magnetic biotransformations of iron-based nanoparticles (maghemite, magnetite, cobalt ferrite, and ferrihydrite) reveal distinct biodegradation and re-magnetization kinetics in cellular models.

Magnetic nanodiscs (MNDs) represent a transformative class of anisotropic magnetic nanoparticles with intrinsic vortex magnetization, enabling multifunctional applications in biomedical imaging and therapy.

Characterizing the number distribution of encapsulated magnetic nanoparticles in magnetoliposomes using single-particle ICP-MS.

The tailoring of magnetic properties in spinel ferrite nanoparticles for theranostic applications relies heavily on the precise control of their chemical composition and crystalline structure.

This work presents a systematic study comparing several different crosslinking strategies using NaOH, tripolyphosphate and glutaraldehyde to identify the optimum conditions for the best colloidal stability, pH-responsive drug release and suitable size for intratumoral injection.

Optimized synthesis and aptamer functionalization of hybrid Au@Fe nanoparticles provide a stable magnetic-plasmonic platform with high loading capacity and reproducibility for Alzheimer's disease biomarker detection.

Iron oxide nanoparticles (IONPs) are recently shown to be effective phosphate adsorbents for enhancing phosphate removal during peritoneal dialysis (PD) treatment.

Mesoporous γ-Fe₂O₃@SiO₂–CaO–CuO nanoparticles were prepared. Their potential as an MRI contrast agent and hyperthermia treatment and under the respectively tested conditions, both antibacterial effect and absence of cytotoxicity were demonstrated.

Using rotating magnetic fields and different anisotropic magnetic particles to deliver controlled mechanical stress, persistent Enterococcus faecalis biofilms were disrupted.

Magnetic fluid hyperthermia (MFH) emerges as a potential new therapeutic strategy for the treatment of lung cancer.

Magnetic iron nanoparticles functionalized with hydroxyl and amine groups were incorporated into short peptide-based (Fmoc-FF) supramolecular hydrogels, producing biocompatible systems with high potential for advanced biomedical applications.

This work demonstrates the importance of choosing the proper immobilization method to provide reliable and reproducible magnetic nanoparticle reference samples with defined magnetic properties.

Green-synthesized SP–Au and SP–Au–Gd nanoplatforms integrate Au-enhanced radiosensitization and Gd-driven magnetic hyperthermia with MRI capability. These multifunctional systems enable synergistic, image-guided theranostics for prostate cancer.

Rare-earth orthoferrite (LnFeO₃ Ln = La, Nd, Sm, Gd) nanoparticles were synthesized by thermal decomposition and sol–gel methods. The synthesis route strongly affects particle size and their structural and magnetic properties.

Binary ferrofluids of hard–soft magnetic nanoflowers show composition-controlled hysteresis and aggregation. Experiments and simulations reveal how soft particles suppress chain growth while preserving heating-relevant magnetic losses.

Multiscale validation of BSA-coated magnetic nanoparticles as a theranostic system for crossing biological barriers.

Accurately determining the Specific Loss Power (SLP) remains a major challenge in magnetic hyperthermia and photothermal heating. The SLPCalculator is an open access, easy-to-use and reliable tool for the SLP determination.

Iron oxide nanocubes are benchmark magnetic nanoparticles that efficiently convert magnetic energy into heat for hyperthermia cancer treatment, and their heating can be enhanced by assembling them into ordered structures.

A novel magnetic RF functionalized with Schiff-base/Cu (Mag@RF/SB-Cu) nanocomposite is prepared, characterized and used as a powerful and highly recoverable nanocatalyst for the synthesis of tetrahydrobenzo[b]pyrans in water at 25 °C.

Endovascular brain delivery and magnetic retention of nanocapsules for improved focal delivery.

Esterification of iron oleate with oleyl alcohol is an alternative synthesis method for producing iron oxide tracers for magnetic particle imaging (MPI).

Porous magnetic nanoparticles show pronounced size-dependent effects on bacterial removal, providing guidance for designing effective magnetic adsorbents.

We present an optimization procedure to obtain a more stable colloidal dispersion of magnetic nanodiscs in aqueous environments. A pathway to obtain silica covered magnetite nanodiscs and their subsequent coating with a polymer is described.

Magnetically retrievable hydrophobic-ligand Fe₃O₄ nanoadsorbents rapidly decolorize PET depolymerization products, enabling recovery of high-purity monomer.

Innovative strategies for the rapid diagnosis of viral infections at primary medical assistance are actually of significant relevance. Images supplied by Servier Medical Art, licensed under CCBY4.0 (https://creativecommons.org/licenses/by/4.0/).

The oxidation of magnetite to maghemite is a naturally occurring process that leads to the degradation of the magnetic properties of magnetite nanoparticles.

Our study is devoted to the development, physicochemical characterization, and NIR energy conversion to heat of biodegradable PBAT@CoFe₂O₄ composite foil fabricated via the solvent evaporation casting technique.

Investigation of coprecipitation parameters on IONP physicochemistry and bioactivity.

The study presents the synthesis, structural characterization, and acetone gas sensing by nanocrystalline Co–Zn–Sm ferrites (CZSmF) with the general formula Co_0.7Zn_0.3Sm_xFe_2−xO₄ (x = 0–0.04), synthesized via the sol–gel auto-combustion method.

A novel magnetic MCM-41@UiO-66 nanocomposite supported Schiff-base/Pd complex (Fe₃O₄@MCM-41@UiO-66/SB–Pd) is prepared, characterized and used as a powerful and highly recoverable nanocatalyst in the reduction of nitrobenzenes under mild conditions.

A dual-field magnetic separation method that significantly enhances size fractionation of magnetic nanoparticles, compared to conventional gradient-based methods.

Novel hybrid Fe₃O₄ superparamagnetic nanoparticles with polyoxazoline coatings enable the selective adsorption of pollutants and heavy metals, offering a refined and versatile solution for cutting-edge water purification. Graphical abstract background via Canva.com.

Dissipation factor as a function of frequency for NF 4323, NF 4325, and NF 4328 magnetic fluids.

Carbon-encapsulated γ-Fe₂O₃ nanoparticles (NPs) exhibit emerging magnetic proximity effects together with a robust exchange-bias.

A microwave-assisted polyol method yielded metal ferrite nanocatalysts with >95% reproducibility. EPR analysis revealed that Mn promotes ˙OOH formation, Zn suppresses ROS formation via passivation, and acetate buffer masks radical detection.

Highly electrophilic Mn(0) nanoparticles were synthesized via an organometallic approach. Their magnetic properties indicate antiferromagnetic behaviour, while solution NMR studies unveiled the dynamic nature of weakly coordinated surface ligands.

A cross-linked magnetic acidic poly(ionic liquid) network with a high ionic content as an efficient, water-tolerant, and recyclable catalyst for direct esterification.