Results 191 to 200 of about 7,335 (259)

A selectivity-controlled adsorbent of molybdenum disulfide nanosheets armed with superparamagnetism for rapid capture of mercury ions.

Journal of Colloid and Interface Science, 2019
Although the mercury pollution is declining in the Western and European parts of the world, it is still a widespread environmental concern because of its notorious toxic effects on aquatic ecosystems and human health.
Hua Tian, Junhui He, Minghua Hu
semanticscholar   +1 more source

Origins of superparamagnetism in self-accommodated and trained Ni50Mn37.5Sn12.5 single crystal

, 2020
The low temperature magnetic state of martensite in the shape memory Ni50Mn37.5Sn12.5 single crystal was confirmed from DC and AC magnetization measurements.
P. Czaja, J. Przewoźnik, R. Chulist
semanticscholar   +1 more source

Superparamagnetic nanoparticles for biomedical applications

Journal of Materials Chemistry B, 2020
Recent advances in the development and biological applications of superparamagnetic polymeric nanoparticles are summarized.
Yufen Xiao, Jianzhong Du
openaire   +2 more sources

Superparamagnetism in Bi0.95Mn0.05FeO3 – Ni0.5Zn0.5Fe2O4 multiferroic nanocomposites

Physica B: Condensed Matter, 2019
Multiferroic nanocomposites of x .Bi 0.95 Mn 0.05 FeO 3  + (1- x ).Ni 0.5 Zn 0.5 Fe 2 O 4 , for x values of 0, 0.2, 0.4, 0.5, 0.6, 0.8 and 1, have been fabricated using sol-gel autocombustion and solid state methods.
B. Dhanalakshmi, K. Vivekananda, B. Rao, P. Rao   +3 more
semanticscholar   +1 more source

Interaction of superparamagnetic and non-superparamagnetic particles in magnetic fluid

Journal of Magnetism and Magnetic Materials, 1995
Magnetic fluids are known to contain superparamagnetic and non-superparamagnetic particles. In this paper, an attempt has been made to show the interaction between superparamagnetic and non-superparamagnetic particles experimentally by measuring the initial susceptibility, over a wide temperature range, of manganese-zinc ferrite and cobalt ferrite ...
B. Jeyadevan, K. Nakatsuka
openaire   +1 more source

Superparamagnetism in hematite

Earth and Planetary Science Letters, 1967
It is well known that small particles of ferromagnetic material show superparamagnetic behavior. The magnetic properties of hematite, which has a weak spontaneous magnetization show superparamagnetic behavior in grains which are as large as 1/4 to 1/2 μ in diameter.
D.W. Strangway, B.E. McMahon, R.M. Honea, E.E. Larson   +3 more
openaire   +1 more source

Superparamagnetic nanoparticles in tap water

Water Research, 2007
Magnetization measurements are a useful tool in the characterization of corrosion products formed in municipal water pipes made of iron or steel. Fine particles formed in corrosion processes exhibit superparamagnetic behavior. The size of such particles, which determines their capacity to adsorb hazardous species, can therefore be found from magnetic ...
Frank E, Senftle, Arthur N, Thorpe, Julius R, Grant, Aaron, Barkatt   +3 more
openaire   +2 more sources

Degeneration of biogenic superparamagnetic magnetite

Geobiology, 2009
ABSTRACTMagnetite crystals precipitated as a consequence of Fe(III) reduction by Shewanella algae BrY after 265 h incubation and 5‐year anaerobic storage were investigated with transmission electron microscopy, Mössbauer spectroscopy and X‐ray diffraction. The magnetite crystals were typically superparamagnetic with an approximate size of 13 nm.
Vali, H, Konhauser, K, Pfiffner, SM, Phelps, TJ, Dyar, MD, Rondinone, AJ, Cole, DR, Li, YL   +7 more
openaire   +4 more sources

ESR studies of transition from ferromagnetism to superparamagnetism in nano-ferromagnet La0.8Sr0.2MnO3

Journal of Magnetism and Magnetic Materials, 2018
Electron Spin resonance spectroscopy (ESR) was used to determine the magnetic properties of nanocrystalline samples of La0.8Sr0.2MnO3 having an average crystallite size ranging from 9 to 57 nm.
Mondher Yahya, F. Hosni, A. M’nif, A. Hamzaoui   +3 more
semanticscholar   +1 more source

Cobalt-Based Superparamagnetic Nanorings

Nano Letters, 2004
Remarkable optical and magnetic properties were observed in a Co-thiol-polymer composite. The Co and the thiol ligand used to passivate the Co surface, instead of generating isolated nanoparticles, grow into nanorings with a radius around 2 nm. These structures consist of small clusters of metallic Co connected by alkylthiol chains.
Marin-Almazo, M, Garcia-Gutierrez, D, Gao, X, Elechiguerra, JL, Kusuma, VA, Sampson, WM, Miki-Yoshida, M, Dalton, AB, Escudero, R, Jose-Yacaman, M   +9 more
openaire   +3 more sources