Results 31 to 40 of about 7,335 (259)

Superparamagnetic Nanoparticles for Atherosclerosis Imaging [PDF]

Nanomaterials, 2014
The production of magnetic nanoparticles of utmost quality for biomedical imaging requires several steps, from the synthesis of highly crystalline magnetic cores to the attachment of the different molecules on the surface. This last step probably plays the key role in the production of clinically useful nanomaterials.
Herranz, Fernando, Salinas, Beatriz, Groult, Hugo, Pellico, Juan, Lechuga-Vieco, Ana, Bhavesh, Riju, Ruiz-Cabello, J.   +6 more
openaire   +5 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

Nanochains Formation of Superparamagnetic Nanoparticles [PDF]

The Journal of Physical Chemistry C, 2011
We present simulations on the aggregation of nanometer sized polydispersed superparamagnetic particles under the application of an external magnetic field. We make use of a Monte Carlo method, using a cluster-moving approach, as previously used in literature for ferrofluids. van der Waals attraction and magnetic anisotropy are taken into account in the
Bertoni G., Torre B., FALQUI, ANDREA, Fragouli D., Athanassiou A., Cingolani R.   +5 more
openaire   +2 more sources

Microemulsion Synthesis of Superparamagnetic Nanoparticles for Bioapplications [PDF]

International Journal of Molecular Sciences, 2021
Superparamagnetic nanoparticles have seen increased potential in medical and environmental applications. Their preparation is traditionally made by the coprecipitation method, with limited control over the particle size distribution. Microemulsion methods could be advantageous due to the efficient control of the size, shape, and composition of the ...
María Salvador, Gemma Gutiérrez, Sara Noriega, Amanda Moyano, María Carmen Blanco-López, María Matos   +5 more
openaire   +3 more sources

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

Magnetic needles and superparamagnetic cells [PDF]

Physics in Medicine and Biology, 2007
Superparamagnetic nanoparticles can be attached in great numbers to pathogenic cells using specific antibodies so that the magnetically-labeled cells themselves become superparamagnets. The cells can then be manipulated and drawn out of biological fluids, as in a biopsy, very selectively using a magnetic needle. We examine the origins and uncertainties
H C, Bryant, D A, Sergatskov, Debbie, Lovato, Natalie L, Adolphi, Richard S, Larson, Edward R, Flynn   +5 more
openaire   +2 more sources

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

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