Abstract:
A method of producing metal alloy nanoparticles comprising forming a cyanosol by reacting a mixture of a chlorometallate complex and a cyanometallate complex, spin-coating the mixture onto a substrate to form a film, and sintering the film to form metal ally nanoparticles.
Abstract:
Die Erfindung betrifft stabilisierte superparamagnetische Teilchen, die aus superparamagnetischen Eindomänenteilchen und Aggregaten von superparamagnetischen Eindomänenteilchen bestehen, die mit aliphatischen Di- oder Polycarbonsäuren stabilisiert sind, und die einen Gehalt an geladenen Ionen chemischer Elemente auf der Oberfläche der kleinen superparamagnetischen Eindomänenteilchen enthalten und gegebenenfalls einen Gehalt an zusätzlicher gewebespezifischer Bindungssubstanz oder pharmakologisch wirksamer Substanz aufweisen. Die superparamagnetischen Teilchen setzen sich aus einem Gemisch von kleinen superparamagnetischen Eindomänenteilchen mit einer Teilchengrösse im Bereich zwischen 3 und 50 Nanometer und stabilen, abbaubaren Aggregate aus kleinen superparamagnetischen Eindomänenteilchen mit einer Teilchengrösse im Bereich zwischen 10 und 1000 Nanometer zusammen und bestehen aus Eisenhydroxid, Eisenoxidhydrat, Eisenoxid-, Eisenmischoxid- oder Eisen. Die neuen Teilchen können als Bakteriostaticum, Radiopharmakon, zur Tumorschädigung, zur Verhinderung von Restenosen, zur Bekämpfung von Entzündungskrankheiten, zur Funktionskontrolle von Organen, zum magnetischen drug targeting, als MR-Kontrastmittel, als magnetische lonenaustauscher und magnetische Adsorbentien für Separationsverfahren, zur Herstellung von extrem kleinen Metallteilchen, als Magnetteilchen für die in vitro Diagnostik, gegebenenfalls unter Einwirkung von Magnetfeldern verwendet werden.
Abstract:
A method for making a composition of magnetic nanoparticles. The method includes the step of forming the magnetic nanoparticles, each within a protein template, wherein a liquid composition of said protein templates or subunits thereof is subjected to a microporous membrane filtration step prior to formation of said magnetic nanoparticles.
Abstract:
A direct-write method for fabricating magnetic nanostructures, including hard magnetic nanostructures of barium hexaferrite, BaFe, based on nanolithographic printing and a sol-gel process. This method utilizes a conventional atomic force microscope tip, coated with a magnetic material precursor solution, to generate patterns that can be post-treated at elevated temperature to generate magnetic features consisting of barium ferrite in its hexagonal magnetoplumbite (M-type) structure. Features ranging from several hundred nm down to below 100 nm were generated and studied using AFM, magnetic force microscopy, and X-ray photoelectron spectroscopy. The approach offers a new way for patterning functional inorganic magnetic nanostructures with deliberate control over feature size and shape, as well as interfeature distance and location.
Abstract:
Nanocrystalline and nanocomposite rare earth permanent magnet materials and methods for making the magnets are provided. The magnet materials can be isotropic or anisotropic and do not have a rare-earth rich phase. The magnet materials comprise nanometer scale grains and possesses a potential high maximum energy product, a high remancence, and a high intrinsic coercivity. The magnet materials having these properties are produced by using methods including magnetic annealing and rapid heat processing.
Abstract:
This invention relates to the controlled crystallization of magnetite to form superparamagnetic nanoparticles. The particles are highly crystalline magnetite in the 10 to 250 nm, 10 to 200, 20-200 and preferably 50 to 150 nm diameter range, exhibiting superparamagnetic characteristics with a saturation magnetization of 62 emu/g. The particles are stabilized with a coating such as dextran. These particles have potential applications in biological cell separations, drug delivery and nondestructive clinical diagnosis.
Abstract:
A method of making nanoparticles. The method includes steps of heating a solid powder, immersing the solid in a liquid that is colder than the hot powder, and during the immersing, irradiating the liquid with RF radiation. The immersing and the irradiating serve to break up the powder into the nanoparticles.
Abstract:
Disclosed are far-infrared emission powders and resin-coated steel plates with antibacterial activity and far-infrared emission properties. In addition to being 0.9 or higher in emissivity, the far-infrared emission powders are inhibitory against the growth of bacteria, with a pH value of 7.5-10.5 in its saturate aqueous solution. A coating material comprising 5-100 parts by weight of the powder per 100 parts by weight of a resin is coated to a dry thickness of 5-60 mu m on an electromagnetic shield steel plate without interruption of the intrinsic electromagnetic shield properties of the steel plate.
Abstract:
A radio wave absorber which has a high absorbing performance for a high-frequency electromagnetic wave and is reduced in thickness, and which is constructed so that a conductor is fixed to a surface opposite to an electromagnetic-wave incidence surface of a single-layer magnetic layer, wherein the values of a real part mu ' and an imaginary part mu '' of complex relative permeability of the magnetic layer satisfy mu '' >/= m mu ' - n (m: m > 0, real number, n: n >/= 0, real number) outside an impedance mismatching area, whereby providing good high-frequency electromagnetic wave-absorbing characteristics even when a magnetic layer thickness is up to 1 mm.
Abstract:
A logic device formed from at least one chain of dots of magnetic material. Each dot has a width of 200 nm or less and is spaced at a distance that is sufficiently small to ensure magnetic interaction of adjacent dots.