Results 61 to 70 of about 199,676 (275)

Size-dependent magnetic responsiveness of magnetite nanoparticles synthesised by co-precipitation and solvothermal methods

Journal of Science: Advanced Materials and Devices, 2018
The dependence of the magnetic responsiveness on magnetite nanoparticle size has been studied. Monodisperse magnetite nanoparticles of 10 nm diameter were prepared by an ultrasonically enhanced co-precipitation procedure.
Thanh Quang Bui, Suong Nu-Cam Ton, Anh Trong Duong, Hoa Thai Tran   +3 more
doaj   +1 more source

Correlation between tunneling magnetoresistance and magnetization in dipolar coupled nanoparticle arrays

, 2004
The tunneling magnetoresistance (TMR) of a hexagonal array of dipolar coupled anisotropic magnetic nanoparticles is studied using a resistor network model and a realistic micromagnetic configuration obtained by Monte Carlo simulations.
C. B. Murray, D. Kechrakos, D. Kechrakos, G. T. Gao, J. Inoue, K. Binder, K. N. Trohidou, M. Julliere, P. Allia, R. L. Stamps, S. Chikazumi, S. Sankar, W. H. Press   +12 more
core   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Experimental study on the thermal performance of hybrid nanofluid in a compact plate heat exchanger under the influence of a magnetic field

Case Studies in Thermal Engineering
This study presents an experimental investigation into the thermal and hydrodynamic performance of a compact plate heat exchanger utilizing Fe3O4/water and Fe3O4–Cu/water hybrid nanofluids under the influence of an externally applied magnetic field (0.46 
Mutlu Tekir
doaj   +1 more source

Magnetic interactions between nanoparticles [PDF]

Beilstein Journal of Nanotechnology, 2010
We present a short overview of the influence of inter-particle interactions on the properties of magnetic nanoparticles. Strong magnetic dipole interactions between ferromagnetic or ferrimagnetic particles, that would be superparamagnetic if isolated, can result in a collective state of nanoparticles. This collective state has many similarities to spin-
Steen Mørup, Mikkel Fougt Hansen, Cathrine Frandsen   +2 more
openaire   +3 more sources

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

Advanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan, Marie Le Pivert, Alireza Ranjbari, Diana Dragoe, Daniel Bahena‐Uribe, Christophe Colbeau‐Justin, Christian Herrero, Dorota Rutkowska‐Zbik, Johnny Deschamps, Hynd Remita   +9 more
wiley   +1 more source

Magnetic nanoparticle-supported organocatalysis

Green Processing and Synthesis, 2013
Magnetic nanoparticle (MNP)-supported catalysis is a new method to facilitate catalyst separation and reuse. This technique has recently been introduced for organocatalysis.
Huang Yibo, Zhang Wei
doaj   +1 more source

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

Advanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong, Changfan Xu, Huaping Zhao, Yong Lei   +3 more
wiley   +1 more source

Evidence of Low-Temperature Superparamagnetism in Mn$_{3}O$_{4}$ Nanoparticle Ensembles

, 2010
Please refer to the abstract within the main body of the ...
B I Machado, C E Botez, Culity B D, J G Parsons, Jensen G B, L E Murr, Néel L, R J Tackett, S M Gaytan, Tackett R J, Vogel H   +10 more
core   +1 more source

Mathematical model of magnetic hyperthermia therapy for breast tumour via intratumoural injection of iron–platinum nanoparticles

Case Studies in Thermal Engineering
The present study explores magnetic hyperthermia for a treatment of a breast tumour with a surrounding healthy breast gland region and overlying fat and skin regions.
Sreedhara Rao Gunakala, Victor M. Job, P.V.S.N. Murthy, P. Sibanda, C.S.K. Raju   +4 more
doaj   +1 more source