摘要:
An object to be achieved by the present invention is to provide a method for determining the amount of a component contained in a specific lipoprotein fraction in a biological sample using an automatic analyzer, without the requirement of a step of fractionating a sample by centrifugation. The present invention provides a method for separating a target component in a biological sample, which comprises the steps of: (1) causing a biological sample to come into contact with independently dispersed magnetic nanoparticles having a particle size of 50 nm or less, which have anionic functional groups on their surfaces, so as to form an agglutinate of the magnetic nanoparticles and biomolecules capable of interacting with the magnetic nanoparticles; and (2) collecting the agglutinate by an external magnetic field.
摘要:
The invention relates to a method suitable for the production of immobilized double lipid layers, comprising an inner and an outer lipid layer. The inner and outer lipid layer of said double lipid layers have a defined orientation on the surface of a solid body and are immobilized on the surface of said solid body in a substantially stable and dynamic manner. In order to carry out the inventive method, the surface of a solid body is initially modified in such a way that a surface is formed which preferably interacts with only one of the two lipid layers. In a second step, a double lipid layer is deposited on said modified surface. Preferably, other components, especially protein, are inserted into the double lipid layer.
摘要:
A composition containing ultrafine particles of a magnetic metal oxide, characterized by comprising an aqueous sol of a composite consisting of the ultrafine particles and a polysaccharide, its derivative and/or a protein, and an organic monocarboxylic acid. This composition is useful in the fields of medicines, diagnostic chemicals and so forth, because it is free from side effects such as platelet agglutination, is excellent in the safety for living organism, and does not adversely affect the living organisms even when administered in the blood vessel.
摘要:
Stable suspensions of coated magnetic particles, preferably resuspendable bioactive particles particularly useful in Magnetic Resonance Imaging, are produced by disrupting, what are presumed to be, crystalline agglomerates of a parent particulate magnetic starting material in the presence of a coating material, such that coating can take place during the disruption. The particles are generally coated in suspension yielding a stable suspension of subdivided particles. With the proper selection of a coating material, preferably a protein or other biochemically or biologically active polymer such as an antibody, a resuspendable (colloidal) bioactive product is obtained.
摘要:
Magnetically attractable particles comprise a core of magnetic material encapsulated in a metal oxide coating. They may be made by emulsifying an aqueous solution or dispersion of the magnetic material or precursor, and an aqueous solution or sol of a coating inorganic oxide or precursor, in an inert water-immiscible liquid. The aqueous droplets are gelled, e.g. by ammonia or an amine, recovered, and heated at 250 - 2000 o C. The resulting particles are generally smooth spheres below 100 microns in diameter and often of sub-micron size.
摘要:
The present invention relates to water soluble magnetic nanocomposite using an amphiphilic compound. Specifically, the present invention relates to water soluble magnetic nanocomposite which may be not only used as a contrast agent for magnetic resonance imaging (MRI), an intelligent contrast agent for diagnosing cancer characterized by binding a tissue-specific binder ingredient, a drug delivery system for simultaneous diagnosis and treatment by polymerizing or enveloping drugs and binding a tissue-specific binder ingredient, but also used for separating a target substance using magnetism, and a process for preparing the same.
摘要:
An object to be achieved by the present invention is to provide a method for determining the amount of a component contained in a specific lipoprotein fraction in a biological sample using an automatic analyzer, without the requirement of a step of fractionating a sample by centrifugation. The present invention provides a method for separating a target component in a biological sample, which comprises the steps of: (1) causing a biological sample to come into contact with independently dispersed magnetic nanoparticles having a particle size of 50 nm or less, which have anionic functional groups on their surfaces, so as to form an agglutinate of the magnetic nanoparticles and biomolecules capable of interacting with the magnetic nanoparticles; and (2) collecting the agglutinate by an external magnetic field.
摘要:
Die Erfindung betrifft ein Verfahren zur Herstellung einer trockenen Polymerbeadzubereitung. Hierzu werden die Polymerbeads mit einer Schicht eines leichtlöslichen Stoffes überzogen, welcher sich bei Resuspension der Polymerbeads in einer Flüssigkeit wieder auflöst. Die Resuspension ist dadurch weitgehend agglomeratfrei möglich.
摘要:
Stable suspensions of coated magnetic particles, preferably resuspendable bioactive particles particularly useful in Magnetic Resonance Imaging, are produced by disrupting, what are presumed to be, crystalline agglomerates of a parent particulate magnetic starting material in the presence of a coating material, such that coating can take place during the disruption. The particles are generally coated in suspension yielding a stable suspension of subdivided particles. With the proper selection of a coating material, preferably a protein or other biochemically or biologically active polymer such as an antibody, a resuspendable (colloidal) bioactive product is obtained.
摘要:
Die magnetischen Flüssigkeitzusammensetzungen bestehen aus physiologisch verträglichen, magnetfeldstabilen Dispersionen von superparamagnetischen Teilchen in Wasser. Die Herstellung der magnetischen Flüssigkeitszusammensetzungen erfolgt durch eine chemische Bindung von Stabilisatorsubstanzen, diagnostisch und pharmakologisch wirksamen Substanzen auf der Oberfläche von superparamagnetischen Teilchen. Die magnetischen Flüssigkeitszusammensetzungen sind in der Medizin und Veterinärmedizin für die in vitro und in vivo Diagnostik und Therapie sowie in vielen Bereichen der Wissenschaft und Technik anwendbar.