Results 41 to 50 of about 35,935 (220)

Grafting TRAIL through Either Amino or Carboxylic Groups onto Maghemite Nanoparticles: Influence on Pro-Apoptotic Efficiency

Nanomaterials, 2021
Tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) is a member of the TNF cytokine superfamily. TRAIL is able to induce apoptosis through engagement of its death receptors DR4 and DR5 in a wide variety of tumor cells while sparing ...
Hanene Belkahla, Andrei Alexandru Constantinescu, Tijani Gharbi, Florent Barbault, Alexandre Chevillot-Biraud, Philippe Decorse, Olivier Micheau, Miryana Hémadi, Souad Ammar   +8 more
doaj   +1 more source

MPI Phantom Study with A High-Performing Multicore Tracer Made by Coprecipitation [PDF]

, 2019
Magnetic particle imaging (MPI) is a new imaging technique that detects the spatial distribution of magnetic nanoparticles (MNP) with the option of high temporal resolution.
Eberbeck, Dietmar, Hamm, Bernd, Hauptmann, Ralf, Kosch, Olaf, Kratz, Harald, Mohtashamdolatshahi, Azadeh, Schnorr, Jörg, Taupitz, Matthias, Wiekhorst, Frank   +8 more
core   +1 more source

Slight Truncation Changes in Iron Oxide Nanocubes Strongly Affect Their Magnetic Properties

Advanced Functional Materials, EarlyView.
Subtle variations in nanoparticle morphology can lead to significant changes in functional properties. An automated shape‐fitting method captures minor differences in corner truncation between iron oxide nanocubes of similar sizes synthesized under identical conditions, revealing pronounced disparities in their magnetic and hyperthermia behavior ...
Kingsley Poon, Raúl López‐Martín, Verner Håkonsen, Nader Yaacoub, Francisco J. Terán, Alberto López Ortega, Jose A. De Toro, Gurvinder Singh   +7 more
wiley   +1 more source

Improvement of Biohydrogen and Usable Chemical Products from Glycerol by Co-Culture of Enterobacter spH1 and Citrobacter freundii H3 Using Different Supports as Surface Immobilization

Fermentation, 2021
Glycerol is a by-product of biodiesel production in a yield of about 10% (w/w). The present study aims to improve the dark fermentation of glycerol by surface immobilization of microorganisms on supports.
Biniam T. Maru, Francisco Lopez, Francesc Medina, Magda Constantí   +3 more
doaj   +1 more source

Influence of surface anisotropy on the magnetization reversal of nanoparticles

, 2004
The influence of surface anisotropy on the magnetization processes of maghemite nanoparticles with ellipsoidal shape is studied by means of Monte Carlo simulations.
Batlle, Bødker, Iglesias, Iglesias, Kachkachi, Kodama, Labay, Martínez, Neél, Tartaj, Trohidou   +10 more
core   +1 more source

Magnetothermal‐Triggered Response and Self‐Healing of Recyclable and Reprocessable Nanocomposites for Actuation Systems

Advanced Functional Materials, EarlyView.
Developing recyclable materials for magnetic robotics that combine rapid response and self‐healing properties is challenging. Hence, this study focuses on the integration of magnetothermal nanoparticles into a dynamic sorbitol‐based vitrimer, a recyclable composite capable of remote actuation and self‐healing by magnetic heating.
Maria Weißpflog, Gloria Signorato, Birgit Hankiewicz, Volker Abetz   +3 more
wiley   +1 more source

Mineralogical Evolution of Magnetic Rhodic Oxisols under Different Lithological Influences in Brazil

Revista Brasileira de Ciência do Solo
Ferrimagnetic Fe-oxides are important soil components, which are present in most of the agricultural soils of Brazil. Distinction, origin, and assessment of the influence of these minerals on magnetism and geochemistry is a challenge for mineralogists ...
Luiz Aníbal Silva Filho, João Carlos Ker, Maurício Paulo Ferreira Fontes, Danilo de Lima Camêlo, Marcelo Metri Corrêa, Luis Carlos Duarte Cavalcante, Luciano de Moura Guimarães   +6 more
doaj   +1 more source

Synthetic and natural iron oxide characterization through microparticle voltammetry [PDF]

, 2009
Se presentan los resultados de un estudio sobre el uso de la Voltametría de Micropartículas (VMP), aplicada a la identificación de óxidos y oxihidróxidos de hierro. Mediante esta técnica, fue posible diferenciar hematita, goethita, magnetita y maghemita,
Bidegain, Juan Carlos, Elsner, Cecilia Ines, Rico, Yamile   +2 more
core   +3 more sources

On spin-canting in maghemite particles [PDF]

Journal of Applied Physics, 1994
The degree of alignment of the magnetic moments of Fe3+ ions in ultrafine maghemite particles has been studied in samples with induced magnetic texture. The textured samples were prepared by freezing ferrofluids, containing 7.5 nm maghemite particles, in a magnetic field.
Linderoth, Søren; id_orcid 0000-0001-9863-6290, Hendriksen, Peter Vang; id_orcid 0000-0002-4748-532X, Bødker, F., Wells, S., Davies, K., Charles, S. W., Mørup, Steen   +6 more
openaire   +2 more sources

DC‐magnetometry Analytical Tool Driven by Spin Ordering Phenomena for Sensing Chemical Interactions at the Surface of Nanomaterials

Advanced Science, EarlyView.
The adsorption of AsV on akaganeite nanorods was found to provide a magnetic signature. A change in the surface spin order gave rise to a second peak in the zero‐field cooled curve. AsIII adsorption does not provide any change in the magnetic behavior of the sorbent.
Marco Sanna Angotzi, Valentina Mameli, Alessandra Fantasia, Cesare Atzori, Giovanni Bertoni, Vincenzo Grillo, Giorgio Divitini, Dominika Zakutna, Jana Vejpravova, Martin Kalbac, Jan Plšek, Carla Cannas   +11 more
wiley   +1 more source