Results 21 to 30 of about 4,285 (174)

Soft solution growth of magnetite-maghemite nanocrystals in crosslinked chitosan templates and their superparamagnetic properties

Nanocomposites, 2022
Crosslinked chitosan/iron oxide nanocomposites (CC/IO) were synthesized at low temperatures using aqueous systems, i.e. hydrothermal and refluxing methods.
Sukanda Vaewbundit, Punnama Siriphannon
doaj   +1 more source

Corrigendum: Computational modeling of superparamagnetic nanoparticle-based (affinity) diagnostics [PDF]

Frontiers in Bioengineering and Biotechnology
Loï Van Dieren, Loï Van Dieren, Loï Van Dieren, Loï Van Dieren, Loï Van Dieren, Antoine A. Ruzette, Vlad Tereshenko, Haïzam Oubari, Haïzam Oubari, Haïzam Oubari, Yanis Berkane, Yanis Berkane, Jonathan Cornacchini, Jonathan Cornacchini, Filip Thiessen EF, Filip Thiessen EF, Filip Thiessen EF, Filip Thiessen EF, Curtis L. Cetrulo, Curtis L. Cetrulo, Curtis L. Cetrulo, Curtis L. Cetrulo, Korkut Uygun, Korkut Uygun, Alexandre G. Lellouch, Alexandre G. Lellouch, Alexandre G. Lellouch, Alexandre G. Lellouch, Alexandre G. Lellouch, Alexandre G. Lellouch   +29 more
doaj   +2 more sources

The magnetic ordering in high magnetoresistance Mn-doped ZnO thin films

AIP Advances, 2016
We studied the nature of magnetic ordering in Mn-doped ZnO thin films that exhibited ferromagnetism at 300 K and superparamagnetism at 5 K. We directly inter-related the magnetisation and magnetoresistance by invoking the polaron percolation theory and ...
S. Venkatesh, A. Baras, J.-S. Lee, I. S. Roqan   +3 more
doaj   +1 more source

Magnetic properties of the granular alloy Fe10Ag90 as a function of annealing temperature

Materials Research, 2005
Fe10Ag90 granular alloys have been prepared using a sol-gel process, sintered at 300 °C and annealed at temperatures between 400 °C and 700 °C. The mean size of the iron particles, obtained from X-ray diffraction, is 30.0 ± 0.7 nm. Due
João Maria Soares, José Humberto de Araújo, Francisco de Assis Olímpio Cabral, Thomas Dumelow, Milton Morais Xavier Júnior, José Marcos Sasaki   +5 more
doaj   +1 more source

A Ferrofluid with Surface Modified Nanoparticles for Magnetic Hyperthermia and High ROS Production

Molecules, 2022
A ferrofluid with 1,2-Benzenediol-coated iron oxide nanoparticles was synthesized and physicochemically analyzed. This colloidal system was prepared following the typical co-precipitation method, and superparamagnetic nanoparticles of 13.5 nm average ...
Oscar Cervantes, Zaira del Rocio Lopez, Norberto Casillas, Peter Knauth, Nayeli Checa, Francisco Apolinar Cholico, Rodolfo Hernandez-Gutiérrez, Luis Hector Quintero, Jose Avila Paz, Mario Eduardo Cano   +9 more
doaj   +1 more source

SUPERPARAMAGNETISM OF Fe/Cu MULTILAYERED FILMS

, 1988
Mutually insoluble Fe/Cu multilayered films prepared by a DC-magnetron sputtering system with a rotation substrate-holder have been studied. The results of magnetization measurements and Mössbauer spectrometry at 300 K and 77 K show that the samples with
Zhao Jian-gao, Ma Xiao-ding, Yang Lin-yuan, Guo Hui-qun   +3 more
core   +1 more source

Chemical Manipulation of the Collective Superspin Dynamics in Heat-Generating Superparamagnetic Fluids: An AC-Susceptibility Study

Crystals
We use Co doping to alter the magnetic relaxation dynamics in superparamagnetic nanofluids made of 18 nm average diameter Fe3O4 nanoparticles immersed in Isopar M. Ac-susceptibility data recorded at different frequencies and temperatures, χ″vs.
Cristian E. Botez, Alex D. Price
doaj   +1 more source

Synthesis and characterization of PVP-functionalized superparamagnetic Fe3O4 nanoparticles as an MRI contrast agent

eXPRESS Polymer Letters, 2010
The magnetite (Fe3O4) nanoparticles (MNPs) coated with poly(N-vinyl pyrrolidone) (PVP) via covalent bonds were prepared as T2 contrast agent for magnetic resonance imaging (MRI).
doaj   +1 more source

Preparation and Characteristics of γ-Fe2O3/Polyaniline-Curcumin Composites

Metals, 2015
Superparamagnetic nanomaterials are showing great prospects in medical treatments with targeting medicines. A new conductive superparamagnetic nanocomposite, γ-Fe2O3/polyaniline-curcumin (γ-Fe2O3/PANI-curcumin), was prepared by using the interaction ...
Yongli Li, Chunxia Zhu, Jinqing Kan
doaj   +1 more source

Hybrid Nanostructured Magnetite Nanoparticles: From Bio-Detection and Theragnostics to Regenerative Medicine

Magnetochemistry, 2020
Nanotechnology offers the possibility of operating on the same scale length at which biological processes occur, allowing to interfere, manipulate or study cellular events in disease or healthy conditions.
Yolanda Piñeiro, Manuel González Gómez, Lisandra de Castro Alves, Angela Arnosa Prieto, Pelayo García Acevedo, Román Seco Gudiña, Julieta Puig, Carmen Teijeiro, Susana Yáñez Vilar, José Rivas   +9 more
doaj   +1 more source