Results 21 to 30 of about 24,751 (224)

Maghemite Functionalization for Antitumor Drug Vehiculization [PDF]

Molecular Pharmaceutics, 2012
In this paper we describe the preparation and characterization of magnetic nanocomposites designed for applications in targeted drug delivery. Combining superparamagnetic behavior with proper surface functionalization in a single entity makes it possible to have altogether controlled location and drug loading, and release capabilities.
Katarzyna, Rudzka, Angel V, Delgado, Julián L, Viota   +2 more
openaire   +2 more sources

Rotation of a Ferromanganese Nodule in the Penrhyn Basin, South Pacific, Tracked by the Earth's Magnetic Field

Geochemistry, Geophysics, Geosystems, 2023
Ferromanganese nodules are cm‐sized, authigenic, abyssal manganese‐iron‐hydroxide concretions. They grow very slowly at rates of a few mm per million years.
Hirokuni Oda, Wataru Katanoda, Akira Usui, Masafumi Murayama, Yuhji Yamamoto   +4 more
doaj   +1 more source

Engineering Gold Shelled Nanomagnets for Pre-Setting the Operating Temperature for Magnetic Hyperthermia

Nanomaterials, 2022
This study investigated the fabrication of spherical gold shelled maghemite nanoparticles for use in magnetic hyperthermia (MHT) assays. A maghemite core (14 ± 3 nm) was used to fabricate two samples with different gold thicknesses, which presented gold (
Elis Regina Lima Siqueira, Willie Oliveira Pinheiro, Victor Raul Romero Aquino, Breno Cunha Pinto Coelho, Andris Figueiroa Bakuzis, Ricardo Bentes Azevedo, Marcelo Henrique Sousa, Paulo Cesar Morais   +7 more
doaj   +1 more source

Local Structure and Magnetism of Fe₂O₃ Maghemite Nanocrystals: The Role of Crystal Dimension

Nanomaterials, 2020
Here we report on the impact of reducing the crystalline size on the structural and magnetic properties of γ-Fe2O3 maghemite nanoparticles. A set of polycrystalline specimens with crystallite size ranging from ~2 to ~50 nm was obtained combining ...
Mauro Coduri, Paolo Masala, Lucia Del Bianco, Federico Spizzo, Davide Ceresoli, Carlo Castellano, Serena Cappelli, Cesare Oliva, Stefano Checchia, Mattia Allieta, Dorothee-Vinga Szabo, Sabine Schlabach, Michael Hagelstein, Claudio Ferrero, Marco Scavini   +14 more
doaj   +1 more source

Magneto-sensitive hybrid nanocomposites of water-soluble sodium alginate cross-linked with calcium ions and maghemite

eXPRESS Polymer Letters, 2018
A synthetic procedure is described for preparation of magneto-sensitive nanocomposites from maghemite nanoparticles and a natural polysaccharide, sodium alginate cross-linked with calcium ions.
V. V. Spiridonov, I. G. Panova, L. A. Makarova, S. B. Zezin, A. A. Novakova, T. G. Baluyan, A. V. Sybachin, V. V. Kuznetsov, A. A. Yaroslavov   +8 more
doaj   +1 more source

Reassessing the role of magnetite during natural hydrogen generation

Frontiers in Earth Science, 2023
Interactions between water and ferrous rocks are known to generate natural H2 in oceanic and continental domains via the oxidation of iron. Such generation has been mainly investigated through the alteration of Fe2+-silicate and some Fe2+-carbonates.
Ugo Geymond, Ugo Geymond, Théo Briolet, Théo Briolet, Valentine Combaudon, Valentine Combaudon, Olivier Sissmann, Isabelle Martinez, Mathieu Duttine, Isabelle Moretti   +9 more
doaj   +1 more source

Synthesis and cytotoxicity analysis of fatty acid-mediated maghemite nanoparticles in cancerous and normal cells [PDF]

Nanomedicine Journal
Objective(s): Our goal was to synthesize and characterize fatty acid-capped maghemite nanoparticles (NPs) and evaluate their cytotoxic effect on human cancer and normal cell lines.Methods: Maghemite NPs were synthesized by co-precipitating iron (II ...
Mina Zangouei, Elham Einafshar, Fatemeh Forouzanfar, Tayebeh Hamzehloei, Zahra Meshkat, Aida Gholoobi   +5 more
doaj   +1 more source

Assessment of the Capability of Magnetic Nanoparticles to Recover Neodymium Ions from Aqueous Solution

Acta Chimica Slovenica, 2022
Magnetic nanoparticles (MNPs) have received increasing attention for various applications due to their fast synthesis, versatile functionalization, and recyclability by the application of a magnetic field.
Ana Ambrož, Irena Ban, Thomas Luxbacher
doaj   +1 more source

Preparation of maghemite-silica nanocomposites using sol-gel technique [PDF]

, 2010
Superparamagnetic maghemite nanoparticles were successfully produced using Massart's procedure. Nanocomposites consisting of the synthesized maghemite nanoparticles and silica were produced by dispersing the as-synthesized maghemite nanoparticles into ...
Yaacob, Iskandar Idris, Ang, Bee Chin
core   +1 more source

Cerium Oxide-Decorated γ-Fe2O3 Nanoparticles: Design, Synthesis and in vivo Effects on Parameters of Oxidative Stress

Frontiers in Chemistry, 2020
Magnetic γ-Fe2O3/CeOx nanoparticles were obtained by basic coprecipitation/oxidation of iron chlorides with hydrogen peroxide, followed by precipitation of Ce(NO3)3 with ammonia.
Maksym Moskvin, Irena Marková, Hana Malínská, Denisa Miklánková, Martina Hüttl, Olena Oliyarnyk, Ognen Pop-Georgievski, Alexander Zhigunov, Eduard Petrovský, Daniel Horák   +9 more
doaj   +1 more source