A5072929102- Magnetic properties of thin films
- Metallic Glasses and Amorphous Alloys
- Electric Motor Design and Analysis
- Magnetic Properties and Applications
- Theoretical and Computational Physics
- Characterization and Applications of Magnetic Nanoparticles
- Biosensors and Analytical Detection
- Magnetic Properties of Alloys
- Geomagnetism and Paleomagnetism Studies
- Advanced biosensing and bioanalysis techniques
- Nanoparticle-Based Drug Delivery
- Magneto-Optical Properties and Applications
- Microfluidic and Bio-sensing Technologies
- MicroRNA in disease regulation
- Extracellular vesicles in disease
- Magnetic Field Sensors Techniques
- Gold and Silver Nanoparticles Synthesis and Applications
- Electrochemical sensors and biosensors
- Microstructure and Mechanical Properties of Steels
- Advanced Biosensing Techniques and Applications
- Non-Destructive Testing Techniques
- Metallurgical and Alloy Processes
- Genetics, Bioinformatics, and Biomedical Research
- Nanopore and Nanochannel Transport Studies
- Thermodynamic and Structural Properties of Metals and Alloys
Antea Group (France)
2023-2024
Conference Board
2023-2024
Institute of Electrical and Electronics Engineers
2021-2024
Universidad de Oviedo
2014-2024
Alpha Omega Electromagnetics (United States)
2020-2023
Canadian Standards Association
2020
Extracellular vesicles (EV) are small membrane structures released by cells that act as potent mediators of intercellular communication. The study EV biology is important, not only to strengthen our knowledge their physiological roles, but also better understand involvement in several diseases. In the field biomedicine they have been studied a novel source biomarkers and drug delivery vehicles. most commonly used method for enrichment crude pellet involves serial centrifugation...
The effect of the annealing temperature Tann on magnetic properties cobalt ferrite nanoparticles embedded in an amorphous silica matrix (CoFe2O4/SiO2), synthesized by a sol-gel auto-combustion method, was investigated magnetization and AC susceptibility measurements. For samples with 15% w/w nanoparticle concentration, particle size increases from ~2.5 to ~7 nm, increasing 700 900 °C. effective anisotropy constant (Keff) decreasing Tann, due increase surface contribution. 5% sample annealed...
Superparamagnetic iron oxide nanoflowers coated by a black carbon layer (Fe3O4@C) were studied as labels in lateral flow immunoassays. They synthesized one-pot solvothermal route, and they characterized (size, morphology, chemical composition, magnetic properties). consist of several superparamagnetic cores embedded coating holding carboxylic groups adequate for bioconjugation. Their multi-core structure is especially efficient separation while keeping suitable properties appropriate size...
Colorectal cancer (CRC) is the third leading cause of death and fourth most common in world. Colonoscopy sensitive test used for detection CRC; however, their procedure invasive expensive population mass screening. Currently, fecal occult blood has been widely as a screening tool CRC but displays low specificity. The lack rapid simple methods makes early diagnosis therapy monitoring difficult. Extracellular vesicles (EVs) have emerged novel source biomarkers due to contents proteins miRNAs....
Today, public health is one of the most important challenges in society. Cancer leading cause death, so early diagnosis and localized treatments that minimize side effects are a priority. Magnetic nanoparticles have shown great potential as magnetic resonance imaging contrast agents, detection tags for vitro biosensing, mediators heating hyperthermia. One critical characteristics to adjust biomedical needs each application their polymeric coating. Fatty acid coatings known contribute...
Lateral flow immunoassays for detecting biomarkers in body fluids are simple, quick, inexpensive point-of-care tests widely used disease surveillance, such as during the coronavirus 2019 (COVID-19) pandemic. Improvements sensitivity would increase their utility healthcare, food safety, and environmental control. Recently, biofunctional magnetic nanoclusters have been to selectively label target proteins, which allows detection quantification with a magneto-inductive sensor. This type of...
Monolithic amorphous Fe73.5Nb3Si13.5B9Cu1/Fe74.5Nb3Si13.5B9 bilayer ribbons were obtained by double-nozzle melt-spinning and subsequently annealed to produce a composite with tailored nano/micro-crystalline structure. The overall magnetic behavior is characterized butterfly-shaped high field hysteresis loops positively biased low ones. main questions we wish address here are whether the global of can be separated into individual contributions each layer magneto-coupling between them well...
Among analytical tests available for point-of-care diagnostics, the lateral flow immunoassay (LFIA) stands out its low-cost, speed, portability, and ease of use. By nature, this paper-based instrument is qualitative, intended to provide a positive/negative reading. LFIA, coupled quantitative readout device that did not compromise advantages, would be powerful tool many clinical biological applications. A promising enabling strategy use superparamagnetic nanoparticles as labels. Their...
Magnetic nanotags in lateral flow immunoassay for inductive biosensing: clusters of superparamagnetic critical size optimize the reading out.
Differential analysis based on first-order reversal curves (FORC) is being increasingly used to study the internal interactions in magnetic systems. Traditionally, this technique has gone hand with Preisach-type models which, although succeeding describing weakly interacting systems, are not applicable nanostructures or polycrystalline systems characterized by strong interactions. This paper aimed at contributing physical understanding of complex FORC diagrams strongly a macromagnetic model...
A novel method for superparamagnetic nanoparticle detection using copper impedance as the sensing property is presented. The increase of produced by proximity nanoparticles in comparable to that classical magnetoimpeditive materials. physical interpretation terms induction eddy currents element oscillating magnetic moments particles proposed. Experimental research has been done support this hypothesis, namely, analyses influence driving current frequency and amplitude, geometry size...
Abstract The mapping of magnetic fields is an important task for characterizing permanent magnets, their systems, and the various devices that use magnets. However, commercial this are quite expensive difficult to acquire. In study, a design process automatized setup utilizing 3D printer was proposed via do-it-yourself approach using common parts found in laboratory. We used two purposes: create instrument fix Hall probe instead extruder, same as position controller probe. describe device...
A detailed analysis of the first-order reversal curve (FORC) measurements offers possibility to separate different magnetic interactions in multiphase or composite materials, and then attain a precise interpretation role played by those interactions. In this paper, we present modified setup based on classical inductive magnetometer optimized for FORC soft together with an improved differential method data order get accurate experimental results.
First-order reversal-curves have proven to be an indispensable characterization tool for physics as well geology. However, the conventional evaluation algorithm requires a lot of computational effort comparable easy task overcome measurement noise. In this work, we present new approach, which exploits diversity Fourier space not only speed up calculation by factor 1000 but also move away from smoothing toward real field resolution. By comparing baseline resolution and old algorithm, are able...
We investigated the inductive detection signal of Mn-ferrite nanoparticles and compared it to magnetite. Our results suggest that Mn-ferrites are promising nanolabels for detecting quantifying analytes in magnetic lateral flow immunoassays.
The urgency for the availability of new antibacterial/disinfectant agents has become a worldwide priority. At same time, along with extensive use other metal nanoparticles (NPs), investigation magnetic NPs (MNPs) in antibacterial studies turned out to be an increasingly attractive research field. In this context, we present preparation and characterization superparamagnetic iron oxide NPs, electrodecorated antimicrobial copper able modulate release bioactive species not only by NP’s...
The magnetic properties of rf sputtered amorphous (Co93Zr7)100−xTbx thin films were investigated as a function Tb content for 0≤x≤2 by transverse biased initial susceptibility measurements. deposition was performed in field. This exhibit very well-defined in-plane anisotropy with negligible long-range fluctuations and small coercive field Hc, accordance the experimental data. overall variations are related to ripple, structure factor S composition measured. local Kloc, deduced from S,...