Results 71 to 80 of about 68,825 (177)

Actuating superparamagnetic nanoparticle monolayers

Proceedings of the National Academy of Sciences
Magnetically responsive, mechanically flexible microstructures are desirable for applications ranging from smart sensors to remote-controlled actuation for surgery or robotics. Embedding magnetic nanoparticles into a thin matrix of elastic material enables high flexibility while exploiting the magnetic response of the individual particles.
Edward P. Esposito, Hector Manuel Lopez Rios, Monica Olvera de la Cruz, Heinrich M. Jaeger   +3 more
openaire   +3 more sources

Evaluation of Antiproliferative Properties of CoMnZn-Fe₂O₄ Ferrite Nanoparticles in Colorectal Cancer Cells

Pharmaceuticals
The PEG-coated ferrite nanoparticles Co0.2Mn0.6Zn0.2Fe2O4 (X1), Co0.4Mn0.4Zn0.2Fe2O4 (X2), and Co0.6Mn0.2Zn0.2Fe2O4 (X3) were synthesized by the coprecipitation method. The nanoparticles were characterized by XRD, Raman, VSM, XPS, and TEM.
Venkatesha Narayanaswamy, Bilal Rah, Imaddin A. Al-Omari, Alexander S. Kamzin, Hafsa Khurshid, Jibran Sualeh Muhammad, Ihab M. Obaidat, Bashar Issa   +7 more
doaj   +1 more source

Fabrication of Yttrium Ferrite Nanoparticles by Solution Combustion Synthesis

Eurasian Chemico-Technological Journal, 2014
The ternary oxide system Y-Fe-O presents fascinating magnetic properties that are sensitive to the crystalline size of particles. There is a major challenge to fabricate these materials in nano-crystalline forms due to particle conglomeration during ...
A. A. Saukhimov, M. A. Hobosyan, G. C. Dannangoda, N. N. Zhumabekova, S. E. Kumekov, K. S. Martirosyan   +5 more
doaj   +1 more source

Nanoscale Analysis of Superparamagnetic Systems

Acta Physica Polonica A, 2017
The paper refers to a kind of nanoscale characterization of superparamagnetic materials above and below the so-called blocking temperature. It is propose to apply the Stoner–Wohlfarth model of nanoparticles magnetization supplemented by the two-level kinetic model, determining behavior in T > 0.
Chrobak, Artur, Ziółkowski, Grzegorz
openaire   +3 more sources

Ferromagnetic, structurally disordered ZnO implanted with Co ions

, 2008
We present superparamagnetic clusters of structurally highly disordered Co-Zn-O created by high fluence Co ion implantation into ZnO (0001) single crystals at low temperatures.
Fassbender, Juergen, Groetzschel, Rainer, Helm, Manfred, Muecklich, Arndt, Potzger, Kay, Schmidt, Heidemarie, Shalimov, Artem, Xu, Qingyu, Zhou, Shengqiang   +8 more
core   +1 more source

METALLIC COMPOUNDS IN THE PHASE OF THE RETICULATED IONIC POLYMERS [PDF]

Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2010
Using the Mossbauer spectroscopy and other physical methods it was demonstrated the presence of different iron compounds like β-FeOOH, α-Fe2O3, and jarosite mineral type compounds: (R4N,H3O)[Fe3(OH)6(SO4)2] or coordination modes: {RCOO-Fe(L4)-OOCR}1+, {R-
Vasilii Gutsanu, Constantin Turta, George Filotic   +2 more
doaj  

On Using Magnetic and optical methods to determine the size and characteristics of nanoparticles embedded in oxide semiconductors

, 2010
Films of oxides doped with transition metals are frequently believed to have magnetic inclusions. Magnetic methods to determine the amount of nanophases and their magnetic characteristics are described.
Alshammari, Marzook, Blythe, Harry J., Feng, Qi, Fox, A. Mark, Gehring, Gillian A., Mokhtari, Abbas, Qahtani, Mohammed S. Al, Score, David S.   +7 more
core   +1 more source

Interaction effects in assembly of magnetic nanoparticles

, 2017
A specific absorption rate of a dilute assembly of various random clusters of iron oxide nanoparticles in alternating magnetic field has been calculated using Landau- Lifshitz stochastic equation.
Serebryakova, O. N., Tarasov, V. P., Usov, N. A.   +2 more
core   +1 more source

Magnetic Nanoparticles in Human Cervical Skin

Frontiers in Medicine, 2019
Magnetic iron oxide nanoparticles, magnetite/maghemite, have been identified in human tissues, including the brain, meninges, heart, liver, and spleen.
Kari Murros, Joonas Wasiljeff, Elena Macías-Sánchez, Damien Faivre, Damien Faivre, Lauri Soinne, Jussi Valtonen, Marjatta Pohja, Pekka Saari, Lauri J. Pesonen, Johanna M. Salminen, Johanna M. Salminen   +11 more
doaj   +1 more source

Electronic phase separation in insulating (Ga,Mn)As with low compensation: Super-paramagnetism and hopping conduction

, 2018
In the present work, low compensated insulating (Ga,Mn)As with 0.7% Mn is obtained by ion implantation combined with pulsed laser melting. The sample shows variable-range hopping transport behavior with a Coulomb gap in the vicinity of the Fermi energy ...
Böttger, Roman, Helm, Manfred, Hübner, René, Jakiela, Rafal, Sawicki, Maciej, Wang, Mao, Xu, Chi, Yuan, Ye, Zhou, Shengqiang   +8 more
core   +1 more source