摘要:
Die Erfindung betrifft eine einfache Schnelldiagnose für Tuberkulose ohne aufwendige Laborhilfsmittel mit Hilfe neuartiger magnetischer und/oder gefärbter Polymerpartikel, die in der Lage sind, sich über immobilisierte Bakterien-spezifische Liganden, sich an die Bakterien oder infektionsauslösende komplementär anzulagern und dadurch einen visuell detektierbaren magnetischen und/oder gefärbten Cluster zu bilden.
摘要:
The refractive index of a metal oxide film on the surface of a powder is enhanced to give a high-reflectance, vividly colored powder, and the number of the layers constituting the metal oxide film is reduced to give a powder having a small particle diameter. The powder comprises a base powder and a multilayer film that has at least a metal oxide film formed by the hydrolysis of a metal alkoxide and that has been heat-treated. The process for preparing the above powder comprises the steps of: dispersing a base powder in a metal alkoxide solution; hydrolyzing the metal alkoxide to prepare a metal oxide, thereby forming a metal oxide film on the surface of the base powder; repeating the above steps a plurality of times to form a multilayer film; conducting heat treatment at least in the final step; and regulating a combination of the substances constituting the multilayer film and the film thickness to change the interference color of the multilayer film, thereby imparting a vivid color to the powder.
摘要:
This invention concerns a process of treating particles which are unstable in air and the particles obtained which exhibit good corrosion resistance. The method consists in treating the metal particles by a current of gas containing silane and hydrogen in a fluidised bed. The particles may subsequently be subjected to a current of oxygen, preferably in the same fluidised bed, to obtain a coating of silica around the particles. The method is especially useful in obtaining particles of iron for magnetic recording materials which are suitable for dispersion and are corrosion-resistant.
摘要:
Materials, techniques, systems, and devices are disclosed for fabricating and implementing high- strength permanent magnets. In one aspect, a method of fabricating a magnet includes distributing particles of a first magnetic material such that the particles are substantially separated, in which the particles include a surface substantially free of oxygen. The method includes forming a coating of a second magnetic material over each of the particles, in which the coating forms an interface at the surface that facilitates magnetic exchange coupling between the first and second magnetic materials. The method includes consolidating the coated particles to produce a magnet that is magnetically stronger than each of the first and second magnetic materials.
摘要:
Monodisperse polymer microparticles comprising polystyrene or polyacrylate, wherein said particles have a coating formed of at least one transition metal oxide or porous polymer microparticles comprising polystyrene or polyacrylate, wherein said particles have a coating formed of at least one transition metal oxide. The use of such particles in a method for isolation of phosphoproteins from a sample containing phosphoproteins or for isolating nucleic acid from a sample containing nucleic acid is also described
摘要:
A particle is disclosed which comprises a core surrounded by a shell which comprises a plurality of nanoparticles of a magnetic material, the shell being surrounded by a continuous outer shell which comprises a non-magnetic material. The particle can be prepared by a process comprising: a first step of providing a core; a second step of adsorbing an inner shell to the core; a third step of providing a plurality of nanoparticles of a magnetic material; a fourth step of adsorbing the nanoparticles to the inner shell; and a fifth step of synthesising an outer shell surrounding the particle. The particle can exhibit the effective bulk properties of a superparamagnetic particle, and the effective surface properties of a non-magnetic particle.