摘要:
A member useful in a printed wiring board comprises a resin insulating layer, a metallic fine particle or catalyst layer, a metal oxide layer, and a metallic or electroless plating layer, wherein the resin insulating layer contains a resin containing an aromatic amide site such as an epoxy-terminated aromatic polyamide.
摘要:
Provided is a wiring board and production method thereof, wherein production of wiring by a full additive method is achieved. This is extremely useful in forming fine copper wiring featuring a high adhesion on an insulating resin substrate. A resin having an excellent alkali resistance is used as the insulating resin substrate, and the copper wiring is formed on the insulating resin substrate through a degenerated layer containing amide group and a metallic oxide layer of a metal having a reduction potential more base than that of copper. The degenerated layer can be provided by, e.g., introduction of amide group into the surface of the insulating resin substrate. The copper can be formed by processes including electroless plating. The insulating resin substrate has superb heat resistance and dimensional stability, and the formed structure can provide a highly packed wiring board.
摘要:
Provided is a wiring board and production method thereof, wherein production of wiring by a full additive method is achieved. This is extremely useful in forming fine copper wiring featuring a high adhesion on an insulating resin substrate. A resin having an excellent alkali resistance is used as the insulating resin substrate, and the copper wiring is formed on the insulating resin substrate through a degenerated layer containing amide group and a metallic oxide layer of a metal having a reduction potential more base than that of copper. The degenerated layer can be provided by, e.g., introduction of amide group into the surface of the insulating resin substrate. The copper can be formed by processes including electroless plating. The insulating resin substrate has superb heat resistance and dimensional stability, and the formed structure can provide a highly packed wiring board.
摘要:
This invention provides a biomolecule modifying substrate comprising biomolecules selectively fixed to given regions thereon. The biomolecule modifying substrate comprises: a substrate at least comprising a first surface and a second surface; a first linker molecule comprising a hydrocarbon chain and a functional group capable of selectively binding to the first surface at one end of the hydrocarbon chain, which is bound to the first surface via such functional group; a second linker molecule comprising a reactive group capable of binding to the hydrocarbon chain of the first linker molecule, which is bound to the first linker molecule via a bond between the reactive group and the hydrocarbon chain; and a biomolecule bound thereto via the second linker molecule.
摘要:
This invention provides a biomolecule modifying substrate comprising biomolecules selectively fixed to given regions thereon. The biomolecule modifying substrate comprises: a substrate at least comprising a first surface and a second surface; a first linker molecule comprising a hydrocarbon chain and a functional group capable of selectively binding to the first surface at one end of the hydrocarbon chain, which is bound to the first surface via such functional group; a second linker molecule comprising a reactive group capable of binding to the hydrocarbon chain of the first linker molecule, which is bound to the first linker molecule via a bond between the reactive group and the hydrocarbon chain; and a biomolecule bound thereto via the second linker molecule.
摘要:
Disclosed is a technique for binding microparticles to patterned bonding pads of a metal (e.g., gold) formed on a support. The microparticles each carry a nucleic acid synthetase or DNA probe immobilized thereon for capturing a nucleic acid sample fragment. The technique involves forming, on a support surface, a film having a thickness equivalent to that of the bonding pads; controlling the size of microparticles with respect to the size of bonding pads; and thereby immobilizing microparticles each bearing a single nucleic acid sample fragment to the bonding pads in a one-to-one manner in a grid form. This allows high-density regular alignment and immobilization of many types of nucleic acid fragment samples on a support and enables high-throughput analysis of nucleic acid samples. Typically, immobilization of microparticles at 1-micrometer intervals easily provides a high density of 106 nucleic acid fragments per square millimeter.
摘要:
An object of the present invention relates to detecting a target substance with high contrast. The invention relates to analysis of a target substance using a light-transmitting substrate and a metal for inducing plasmon resonance, and further using a low refractive index layer with an opening portion, which forms an interface with the substrate, and which has a lower refractive index than the substrate. Light emitted from a substrate side is totally reflected at the interface to irradiate the metal arranged in the opening portion with evanescent light. Light generated from the target substance by plasmon resonance of the evanescent light is detected. According to the invention, the radiation of evanescent light to a material other than the target substance can be reduced, and thereby light emission from the martial other than the target substance, e.g., a molecule floating around the target substance, can be reduced.
摘要:
An object of the present invention is to regularly align microparticles, on each of which a nucleic acid synthetase or a DNA probe capable of capturing a nucleic acid sample fragment is immobilized, on a support so as to improve throughput of nucleic acid analysis. The present invention relates to a method comprising immobilizing a nucleic acid synthetase, a DNA probe, or the like in advance to a microparticle, forming a pattern of metal pads each having a diameter smaller than the microparticle diameter with gold or the like on a support, and allowing a microparticle to be bound to the pads via a chemical bond. In addition, when the surfaces of microparticles are electrically charged, a pattern of metal pads each having a diameter equivalent to or larger than the microparticle diameter is formed with gold or the like on a support and a microparticle is allowed to be bound to the pads via a chemical bond. According to the present invention, many types of nucleic acid fragment samples can be regularly aligned at a high density and immobilized on a support. This allows high throughput analysis of nucleic acid samples. For example, if microparticles are immobilized at 1-micron pitches, a high density of 106 nucleic acid fragments/emm2 can be readily achieved.
摘要:
The present invention relates to a nucleic acid analysis device for analysis of nucleic acid in a sample through fluorometry, in which a localized surface plasmon by light irradiation, and in which a nucleic acid probe or a nucleic acid synthase for the analysis of the nucleic acid in the sample is disposed in a region of generation of the surface plasmon. The present invention allows the fluorescence intensifying effect of the surface plasmon to be produced efficiently and also enables the immobilization of a DNA probe or the nucleic acid synthase in a region on which the fluorescence intensifying effect is exerted, thus making it possible to carry out a measurement on the base elongation reaction without having to remove the unreacted substrate with the fluorescent molecule.
摘要:
A toggle-type die-fastening apparatus has a movable platen that carries one mold part and is supported by and guided along a plurality of tie bars whose one ends are fixed to a fixed platen on which another mold part is mounted. The other ends of the tie bars are supported by a toggle support, and a toggle mechanism is disposed between the toggle support and the movable platen for pressing the mold part carried by the movable platen against the mold part mounted on the fixed platen. A die-fastening force adjusting nut is threaded onto the end portion of each tie bar that is closer to the toggle support so as to bear the reaction of the die-fastening force generated by the toggle mechanism. An adjusting cylinder is formed in this portion, and it is connected to a hydraulic circuit so that the pressure within each of the cylinders is controlled by a pressure adjusting valve in such a manner as to correspond to a die-fastening force set by a setting device. Therefore, the die-fastening forces of all the tie bars can be made the same, thereby eliminating any imbalance between the die-fastening forces of the tie bars caused by changes in thermal balance during the operation of the molding machine.