English
Related papers

Related papers: Superparamagnetic Superparticles for Magnetic Hype…

200 papers

Thermomagnetic measurements are used to obtain the size distribution and anisotropy of magnetic nanoparticles. An analytical transformation method is described which utilizes temperature-dependent zero-field cooling (ZFC) magnetization data…

Mesoscale and Nanoscale Physics · Physics 2015-05-19 R. S. DiPietro , H. G. Johnson , S. P. Bennett , T. J. Nummy , L. H. Lewis , D. Heiman

The poor delivery of nanoparticles to target cancer cells hinders their success in the clinical setting. In this work, an alternative target readily available for circulating nanoparticles has been selected to eliminate the need for…

Biological Physics · Physics 2021-03-18 Juan L. Paris , Gonzalo Villaverde , Sergio Gomez-Grana , Maria Vallet-Regi

The formation of iron oxide nanoparticles (NPs) presents challenges such as efficiency losses and fine dust emissions in practical iron combustion systems, highlighting the need for deeper understanding of the formation mechanisms and…

Among the strategies to fight cancer, multi-therapeutic approaches are considered as a wise choice to put in place multiple weapons to suppress tumors. In this work, to combine chemotherapeutic effects to magnetic hyperthermia when using…

Copper ferrite nanoparticles have catalytic activity for hydrogen peroxide, which can be used in many fields. This characteristic comes from the physical properties of matters at nanometer scale. Thus, controlling the size and aggregation…

Applied Physics · Physics 2023-10-13 Zihan Huang , Siyi Li , He Ding , Piao Pingyang , Jun Xinhuang

The magnetic properties and the effects of interparticle interaction on it have been studied in nanoparticles of half doped Pr$_{0.5}$Sr$_{0.5}$MnO$_{3}$. Three samples consisting of nanoparticles of different average particle sizes are…

Strongly Correlated Electrons · Physics 2015-05-19 A. K. Pramanik , A. Banerjee

Silicon nanoparticles are experimentally investigated as a potential hyperpolarized, targetable MRI imaging agent. Nuclear T_1 times at room temperature for a variety of Si nanoparticles are found to be remarkably long (10^2 to 10^4 s) -…

Nuclear hyperpolarization is a known method to enhance the signal in nuclear magnetic resonance (NMR) by orders of magnitude. The present work addresses the $^{13}$C hyperpolarization in diamond micro- and nanoparticles, using the…

This work reports, some of the features related to the room temperature superparamagnetic behaviours of lead nanoparticles. Such behaviours have not been discussed elaborately, in any literatures, so far. It is obvious from our studies that…

Materials Science · Physics 2014-02-07 T. Theivasanthi , M. Alagar

The combination of multiple functionalities in a single material is an appealing strategy for the de-velopment of smart materials with unique features. In this work, we present the preparation of thermoresponsive magnetic nanoparticles and…

Materials Science · Physics 2021-09-21 Aline Grein-Iankovski , Alain Graillot , Watson Loh , Jean-Francois Berret

We describe a low-cost and simple setup for hyperthermia measurements on colloidal solutions of magnetic nanoparticles (ferrofluids) with a frequency-adjustable magnetic field in the range 5-500 kHz produced by an electromagnet. By…

Materials Science · Physics 2008-10-09 L. -M. Lacroix , J. Carrey , M. Respaud

Fast phase-contrast imaging offered by modern synchrotron facilities opens the possibility of imaging dynamic processes of biological material such as cells. Cells are mainly composed of carbon and hydrogen, which have low X-ray…

A paradigm proposed recently by Boal et al. (A.K. Boal et al., Nature 404, 746-748, 2000) deals with the possibility to use inorganic nanoparticles as building blocks for the design and fabrication of colloidal and supracolloidal…

Soft Condensed Matter · Physics 2009-01-20 J. Fresnais , J. -F. Berret , B. Frka-Petesic , O. Sandre , R. Perzynski

We develop and validate a computational approach to nanomagnets. It is built on the spin wave approximation to a Heisenberg ferromagnet whose parameters can be calculated from a first principles theory (e.g. density functional theory). The…

Materials Science · Physics 2009-11-13 Michael McGuigan , James Davenport , James Glimm

Magnetic nanoparticles offer a unique potential for various biomedical applications, but prior to commercial usage a standardized characterization of their structural and magnetic properties is required. For a thorough characterization, the…

Mesoscale and Nanoscale Physics · Physics 2020-08-18 Mathias Bersweiler , Helena Gavilan Rubio , Dirk Honecker , Andreas Michels , Philipp Bender

Frequency dependant complex magnetic permeability is used to understand RF-microwave behaviour of magnetic nanoparticles in the frequency range 250 MHz to 3 GHz. The stable dispersions of Fe3O4 nanoparticles with mean size varying between…

Applied Physics · Physics 2023-07-19 Mudra Jadav , S. P. Bhatnagar

Plasmonic metal nanostructures are an integral part of nanophotonic device applications owing to their ability to generate strong localized electromagnetic fields when illuminated from the far-field. These nanostructures can be prepared in…

Mesoscale and Nanoscale Physics · Physics 2018-02-05 Sunil Kumar , A. K. Sood

Manganites have been attracted considerable attention due to some intriguing magnetic properties, such as magnetoresistance, spin glass behavior and superparamagnetism. In recent years, some studies point to the effect of particle size and…

Previous measurements have shown large cross sections for the 11B(p,$\alpha$)8Be reaction and K-shell ionization of boron from H+ ions. Past publications have shown that this reaction will likely increase the efficacy of proton therapy.…

Medical Physics · Physics 2022-06-07 Jacob D. Baxley , Duncan Weathers , Tilo Reinert

Magnetic hyperthermia is a new type of cancer treatment designed for overcoming resistance to chemotherapy during the treatment of solid, inaccessible human tumors. The main challenge of this technology is increasing the local tumoral…

Tissues and Organs · Quantitative Biology 2016-11-09 Beatriz Sanz , M. Pilar Calatayud , Teobaldo E. Torres , Mónica L. Fanarraga , M. Ricardo Ibarra , Gerardo F. Goya
‹ Prev 1 4 5 6 7 8 10 Next ›