Results 71 to 80 of about 4,285 (174)

Iron-Oxide Nanoparticles with High Saturation Magnetization and Estimating Their Mean Magnetic Size Using Magnetization Curve [PDF]

Iranian Journal of Chemistry & Chemical Engineering
Superparamagnetic nanoparticles with high saturation magnetism and small average size were synthesized by the economic co-precipitation method. FeCl2.4H2O and FeCl3.6H2O were used as salt agents and NaOH as precipitant. Different reaction conditions were
Hossein Asnaashari Eivari
doaj   +1 more source

Probing Near‐Field EM Fluctuations in Superparamagnetic CoFeB With NV Quantum Dephasometry

Advanced Optical Materials, Volume 14, Issue 27, 17 July 2026.
We non‐invasively investigate the superparamagnetic spin dynamics of a 1.1 nm CoFeB layer by probing its near‐field EM fluctuations using NV centers‐based quantum dephasometry. Our findings are further supported by theoretical modeling and SQUID‐based magnetization characterization. These results provide critical insight into the magnetization dynamics
Shoaib Mahmud, Wei Zhang, Pronoy Das, Angshuman Deka, Wenbo Sun, Zubin Jacob   +5 more
wiley   +1 more source

Room Temperature Superparamagnetism observed in Foam-like Carbon Nanomaterials

, 2011
Magnet-attractive carbon nanopowder can be produced by a pulsed Nd:YAG laser (10 Hz) vaporization of pure carbon in a few % of H2 containing Ar gas at 1000°C. On the other hand, magnet-attractive nanopowder cannot be formed when vaporizing in pure Ar. As-
Hirohito Asano, Susumu Muraki, Makoto Jinno, Sumio Iijima, Takahiro Mizuno, Shunji Bandow   +5 more
core   +1 more source

Magnetic lipase B from Candida antarctica (CALB) biocatalyst for integrated valorization of tilapia by‐products and biodiesel biorefining

Biofuels, Bioproducts and Biorefining, Volume 20, Issue 4, Page 1835-1860, July/August 2026.
Abstract The immobilization of lipase B from Candida antarctica (CALB) on an amino‐epoxy functionalized magnetic support (Fe3O4‐PEI‐DGEBA) resulted in a highly stable and efficient biocatalyst for biofuel production from tilapia oil. The synthesized support was characterized using scanning electron microscopy, transmission electron microscopy, X‐ray ...
Rafael Leandro Fernandes Melo, Francisco Simão Neto, Bruno Caio Chaves Fernandes, Paulo Gonçalves de Sousa Junior, Patrick da Silva Sousa, Tiago Melo Freire, Raniere Dantas Valença, Frederico Ribeiro do Carmo, Marcos Reinaldo da Silva, Leonardo Farias Serafim, João Maria Soares, Pierre Basílio Almeida Fechine, José Cleiton Sousa dos Santos   +12 more
wiley   +1 more source

Tuning the Superspin Dynamics in Inverse Spinel Ferrite Nanoparticle Ensembles via Indirect Cation Substitution

Crystals
We used magnetic and synchrotron X-ray diffraction measurements to investigate the possibility of tuning the strength of magnetic interparticle interactions in nanoparticle ensembles via chemical manipulation.
Cristian E. Botez, Alex D. Price
doaj   +1 more source

Magnetothermal‐Triggered Response and Self‐Healing of Recyclable and Reprocessable Nanocomposites for Actuation Systems

Advanced Functional Materials, Volume 36, Issue 45, 5 June 2026.
Developing recyclable materials for magnetic robotics that combine rapid response and self‐healing properties is challenging. Hence, this study focuses on the integration of magnetothermal nanoparticles into a dynamic sorbitol‐based vitrimer, a recyclable composite capable of remote actuation and self‐healing by magnetic heating.
Maria Weißpflog, Gloria Signorato, Birgit Hankiewicz, Volker Abetz   +3 more
wiley   +1 more source

Co-occurrence of superparamagnetism and anomalous hall effect in highly reduced cobalt-doped rutile TiO_2-δ films

, 2004
We report a detailed magnetic and structural analysis of highly reduced Co doped rutile TiO2-δ films displaying an anomalous Hall effect (AHE). The temperature and field dependence of magnetization, and transmission electron microscopy, clearly ...
Millis, A. J., Kulkarni, V. N., Ogale, S. B., Higgins, J. S., Zheng, H., Ramesh, R., Venkatesan, T., Shinde, S. R., Greene, R. L.   +8 more
core   +1 more source

The Impact of Fe-doped Nano Zirconia for the Reformation of the Photoreaction Rate and Materializing Microorganism Resistance [PDF]

Journal of Water and Environmental Nanotechnology
Doping transition metals have great potential to enhance the optical and magnetic properties. This work described the synthesis of pure and FexZr 1-x O2 (x = 0.04, 0.08, and 0.12 mol %) nanoparticles, structural, magnetic, photocatalytic, and anti ...
Rengaswamy Jeba, Sathasivam Radhika, Xavier Durai Ascar Davix, Christhdhas Sundareshwari Juliet Brintha   +3 more
doaj   +1 more source

Size-Tunable Silicon/Iron Oxide Hybrid Nanoparticles with Fluorescence, Superparamagnetism, and Biocompatibility

, 2016
Magnetic/fluorescent composite materials have become one of the most important tools in the imaging modality in vivo using magnetic resonance imaging (MRI) monitoring and fluorescence optical imaging.
Hiroaki Sukegawa (2144128), Hideo Iwai (2144119), Naoki Fukata (1454746), Yoshinobu Manome (323139), Keisuke Sato (789009), Kenji Hirakuri (2144116), Yasunori Takigami (2144125), Kouki Fujioka (369208), Shinobu Yokosuka (2144122)   +8 more
core   +1 more source

Ensemble magnetic behaviour of interacting CoFe nanoparticles

Frontiers in Physics, 2015
Ferromagnetic nanoparticles in the 10-14 nm size range are examined for their size and interaction dependent magnetic properties. From X-ray magnetic circular dichroism the orbital-to-spin magnetic moment ratio is determined and found to decrease ...
Rowan Caradoc Temple, Andrei P. Mihai, Dario Alejandro Arena, Christopher H. Marrows   +3 more
doaj   +1 more source