Diego Muraca
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View article: Voltage-tunable spin resonance in quantum phase-separated material
Voltage-tunable spin resonance in quantum phase-separated material Open
The voltage control of spin and charge degrees of freedom in complex materials is a cornerstone for the realization of advanced electronic devices with enhanced functionalities. Here, we demonstrate in situ indirect current control via the…
View article: Control of Anisotropy and Magnetic Hyperthermia Effect by Addition of Cobalt on Magnetite Nanoparticles
Control of Anisotropy and Magnetic Hyperthermia Effect by Addition of Cobalt on Magnetite Nanoparticles Open
Magnetic hyperthermia (MH) has emerged as a promising technology with diverse applications in medical and technological fields, leveraging the remote induction of temperature elevation through an alternating magnetic field. While Fe3O4 nan…
View article: Iron Oxide Nanoparticles in a Dynamic Flux: Magnetic Hyperthermia Effect on Flowing Heavy Crude Oil
Iron Oxide Nanoparticles in a Dynamic Flux: Magnetic Hyperthermia Effect on Flowing Heavy Crude Oil Open
An essential part for crude oil extraction is flow assurance, being critical to maintain a financially sustainable flow while getting the petroleum to the surface. When not well managed, it can develop into a significant issue for the O&G …
View article: Observation of magnetic vortex configuration in non-stoichiometric Fe<sub>3</sub>O<sub>4</sub> nanospheres
Observation of magnetic vortex configuration in non-stoichiometric Fe<sub>3</sub>O<sub>4</sub> nanospheres Open
Observation of topological magnetic vortex configuration in sub-micron sphere.
View article: In vitro and in vivo acute toxicity of a novel citrate-coated magnetite nanoparticle
In vitro and in vivo acute toxicity of a novel citrate-coated magnetite nanoparticle Open
Magnetic nanoparticles (MNps) have become powerful tools for multiple biomedical applications such as hyperthermia drivers, magnetic resonance imaging (MRI) vectors, as well as drug-delivery systems. However, their toxic effects on human h…
View article: Resolving magnetic contributions in BiFeO3 nanoparticles using First order reversal curves
Resolving magnetic contributions in BiFeO3 nanoparticles using First order reversal curves Open
BiFeO3 (BFO) nanoparticles (NPs) were studied using First-Order Reversal Curve (FORC) and temperature-dependent magnetometry measurements. The BFO NPs were fabricated by a sol–gel method, while the crystal structure and the average particl…
View article: Engineering Shape Anisotropy of Fe<sub>3</sub>O<sub>4</sub>-γ-Fe<sub>2</sub>O<sub>3</sub> Hollow Nanoparticles for Magnetic Hyperthermia
Engineering Shape Anisotropy of Fe<sub>3</sub>O<sub>4</sub>-γ-Fe<sub>2</sub>O<sub>3</sub> Hollow Nanoparticles for Magnetic Hyperthermia Open
The use of microwave-assisted synthesis (in water) of α-Fe2O3 nanomaterials followed by their transformation onto iron oxide Fe3O4-γ-Fe2O3 hollow nanoparticles encoding well-defined sizes and shapes [nanorings (NRs) and nanotubes (NTs)] is…
View article: Hybrid magneto-luminescent iron oxide nanocubes functionalized with europium complexes: synthesis, hemolytic properties and protein corona formation
Hybrid magneto-luminescent iron oxide nanocubes functionalized with europium complexes: synthesis, hemolytic properties and protein corona formation Open
In this work, we carried out the preparation of a multifunctional hybrid nanostructures towards biomedical applications with a solid background for further applications of these materials containing new surface functionalities of nanobiote…
View article: Ligand-free Few Atoms Ag Nanoclusters Synthesis and Their Potential Application as Photocatalytic Agents
Ligand-free Few Atoms Ag Nanoclusters Synthesis and Their Potential Application as Photocatalytic Agents Open
Reducing the size of a metal from macroscopic to the nanoscale generates a scaling behavior in physical and chemical properties due to the large surface-to-volume fraction. While a further size reduction to small clusters under 2 nm (<~100…
View article: Palmitic acid-coated magnetite nanocubes with high-quality crystallinity and bulk-like magnetic features
Palmitic acid-coated magnetite nanocubes with high-quality crystallinity and bulk-like magnetic features Open
We have demonstrated the synthesis of high-quality monocrystalline magnetite nanocubes through the introduction of palmitic acid as surfactant in a thermal decomposition synthesis of an organic Fe precursor. Unlike the standard thermal dec…
View article: Significant coercivity enhancement at low temperatures in magnetically oriented cobalt ferrite nanoparticles
Significant coercivity enhancement at low temperatures in magnetically oriented cobalt ferrite nanoparticles Open
The present work describes a synthesis and characterization strategy employed to study the magnetic anisotropic properties of a diluted nanoparticulate system. The system under analysis is composed of monodisperse and highly crystalline 16…
View article: Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub> Nanoparticles Concurrently Coated with Chitosan and GdOF:Ce<sup>3+</sup>,Tb<sup>3+</sup> Luminophore for Bioimaging: Toxicity Evaluation in the Zebrafish Model
Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub> Nanoparticles Concurrently Coated with Chitosan and GdOF:Ce<sup>3+</sup>,Tb<sup>3+</sup> Luminophore for Bioimaging: Toxicity Evaluation in the Zebrafish Model Open
In this work, design and physiochemical characterization of a biocompatible nanoplatform with integrated photoluminescence and magnetic properties were reported. The potential in vivo toxicity was assessed by exploring the biodistribution …
View article: <i>In situ</i> electron microscopy observation of the redox process in plasmonic heterogeneous-photo-sensitive nanoparticles
<i>In situ</i> electron microscopy observation of the redox process in plasmonic heterogeneous-photo-sensitive nanoparticles Open
Observation of relevant phenomena related with dynamical redox process in a plasmonic heterogeneous-photocatalyst system composed by Ag nanoparticles (NPs) in contact with amorphous AgCl NPs are reported by in situ transmission electron mi…
View article: Magnetic Remote Activation of Shape Recovery in Nanocomposites Based on Tung Oil and Styrene
Magnetic Remote Activation of Shape Recovery in Nanocomposites Based on Tung Oil and Styrene Open
The activation of unconstrained shape recovery in bio‐based polymeric nanocomposites is successfully achieved using magnetic nanoparticle heating. The materials investigated in this work present several distinct physical and chemical chara…
View article: Strategies to tailor the architecture of dual Ag/Fe-oxide nano-heterocrystals—interfacial and morphology effects on the magnetic behavior
Strategies to tailor the architecture of dual Ag/Fe-oxide nano-heterocrystals—interfacial and morphology effects on the magnetic behavior Open
Agradecimentos: O M-L and M K acknowledge FAPESP and CNPq Brazilian agencies (2014/26672-8). The authors from Argentina thank CONICET. Brazilian Synchrotron Light Laboratory (LNLS/CNPEM) is acknowledged for XAS measurements (XAFS-17726). B…
View article: Red‐Emitting Magnetic Nanocomposites Assembled from Ag‐Decorated Fe <sub>3</sub> O <sub>4</sub> @SiO <sub>2</sub> and Y <sub>2</sub> O <sub>3</sub> :Eu <sup>3+</sup> : Impact of Iron‐Oxide/Silver Nanoparticles on Eu <sup>3+</sup> Emission
Red‐Emitting Magnetic Nanocomposites Assembled from Ag‐Decorated Fe <sub>3</sub> O <sub>4</sub> @SiO <sub>2</sub> and Y <sub>2</sub> O <sub>3</sub> :Eu <sup>3+</sup> : Impact of Iron‐Oxide/Silver Nanoparticles on Eu <sup>3+</sup> Emission Open
The new multistep approach for co‐assembling magnetic iron oxide nanoflowers with red‐emitting Y 2 O 3 :Eu 3+ to form luminescent and magnetic nanocomposites was reported. The Fe 3 O 4 core prepared by solvothermal method was layered by Si…
View article: Nanoclusters of crystallographically aligned nanoparticles for magnetic thermotherapy: aqueous ferrofluid, agarose phantoms and<i>ex vivo</i>melanoma tumour assessment
Nanoclusters of crystallographically aligned nanoparticles for magnetic thermotherapy: aqueous ferrofluid, agarose phantoms and<i>ex vivo</i>melanoma tumour assessment Open
An integrated approach to advance in the translation of magnetic hyperthermia to clinical uses is described.
View article: Magnetic upconverting fluorescent NaGdF4:Ln3+ and iron-oxide@NaGdF4:Ln3+ nanoparticles
Magnetic upconverting fluorescent NaGdF4:Ln3+ and iron-oxide@NaGdF4:Ln3+ nanoparticles Open
Microwave assisted solvothermal method has been employed to synthesize multifunctional upconverting β-NaGdF4:Ln3+ and magnetic-upconverting Fe3O4/γ-Fe2O3@NaGdF4:Ln3+ (Ln = Yb and Er) nanoparticles. The powder x-ray diffraction data confirm…