Results 81 to 90 of about 7,335 (259)

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

Recent Advances in Nickel Catalysts for Sonogashira Coupling

ChemistryOpen, Volume 15, Issue 5, May 2026.
The Sonogashira coupling, catalyzed by transition metals, has become a valuable method for forming carbon‐carbon bonds. Nickel has gained considerable interest due to its lower cost and more environmentally friendly profile compared to palladium.
Sara Payamifar, Pegah Etminan, Ahmad Poursattar Marjani   +2 more
wiley   +1 more source

Metal‐Doped Carbon‐Based Nanomaterials: Photothermal Mechanism Innovation and Precision Therapy Advancement in Antibacterial and Antitumor Applications

Rare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Metal‐doped carbon‐based nanomaterials (M‐CNM) play a strategically significant role in next‐generation precision antibacterial and antitumor therapies, as they integrate synergistic photothermal ablation, catalytic reactive oxygen species (ROS) generation, and multimodal imaging capabilities. However, their clinical translation is hindered by
Pengxiang Liu, Juan Du, Guoqiang Ma, Zheng Li, Aibing Chen, Senlin Hou   +5 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

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

Different Routes for Camellia Sinensis–Mediated Synthesis of Iron Oxide Nanoparticles: Structural, Thermal, and Magnetic Properties

ChemistrySelect, Volume 11, Issue 19, 20 May 2026.
Different green‐assisted routes (After Synthesis—ASR; Green Subsequent—SSR; Green in situ—ISSR) using Camellia sinensis to produce functionalized iron‐based oxide nanoparticles with controlled and distinct structural and magnetic properties. ABSTRACT Green‐assisted iron oxide nanoparticles (NPs) were synthesized using Camellia sinensis extract (green ...
Jeferson Marques Santos, Renzo Rueda‐Vellasmin, Juan A. Ramos‐Guivar, Edson C. Passamani   +3 more
wiley   +1 more source

Superparamagnetism in primitive Meteorites

, 1988
Meteoritter, plaetfysik ...
Olsen, M., Costa, T.V.V., Mørup, Steen, Madsen, M.B., Knudsen, Jens Martin   +4 more
core  

Biomimetic Membrane Interface Technologies for Detection and Isolation of CTCs and EVs: Advances and Opportunities in Liquid Biopsy

Advanced Science, Volume 13, Issue 13, 3 March 2026.
Biomimetic membrane interface engineering constructs functionalized detection platforms by integrating natural cell membranes, synthetic lipids, or hybrid membranes. This strategy effectively reduces background interference and enables efficient target capture and analysis, showing broad applications in circulating tumor cell separation, extracellular ...
Duo Liu, Jie Yu, Jingxue Li, Yixue Chen, Mengle Peng, Yifan Xu, Yongjun Wu, Lihua Ding, Sitian He   +8 more
wiley   +1 more source

Superparamagnetic nanoparticle ensembles [PDF]

Superlattices and Microstructures, 2010
Magnetic single-domain nanoparticles constitute an important model system in magnetism. In particular ensembles of superparamagnetic nanoparticles can exhibit a rich variety of different behaviors depending on the inter-particle interactions. Starting from isolated single-domain ferro- or ferrimagnetic nanoparticles the magnetization behavior of both ...
openaire   +2 more sources

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