摘要:
It is intended to provide a solid support capable of immobilizing nucleic acid molecules in a high proportion, and with a high bond strength to nucleic acid molecules. The solid support comprises a substrate and, provided thereon, an electrostatic layer for electrostatically attracting nucleic acid molecules and functional groups capable of covalently binding to nucleic acid molecules.
摘要:
It is intended to provide a method of reusing a DNA-immobilization substrate whereby the expensive DNA-immobilization substrate can be efficiently utilized and a reusable DNA-immobilization substrate having the same performance as a new product without any trouble in practical use can be provided. Namely, a method of reusing a DNA-immobilization substrate characterized in that, to remove DNA from a DNA-immobilization substrate carrying the DNA immobilized by an acid-amide bond via an oligonucleotide to thereby enable the immobilization of a fresh DNA, the acid-amide bond between the substrate and the DNA is hydrolyzed with an acid or an alkali.
摘要:
Articles with a tenaciously adherent diamond coating are made by forming a diamond coating on a base material by vapor-phase synthesis without causing any warpage of the coating. The diamond coating layer is formed on the surface of a base material having a number of pores formed by electric discharge or laser beams and having a depth of 0.0001-0.2 mm and a diameter of 0.001-0.02 mm. The pores may be connected to one another to form a groove. Suitable examples of the base material include molybdenum, tungsten, silicon, tungsten carbide, silicon carbide, silicon nitride, and cemented carbide mainly comprising tungsten carbide and cobalt and/or nickel.
摘要:
A method for removing polymer scales adhering to the inner surface of a polymerization vessel, which comprises polymerizing vinyl chloride monomer in an aqueous medium, discharging the resulting vinyl chloride polymer together with the aqueous medium from the polymerization vessel, thereafter placing in the vessel both a reaction product resulting from the reaction of an amine and acrylic acid or its derivative and an organic liquid which can dissolve or swell the polyvinyl polymer, and washing the inner surface of the vessel with the organic liquid solution of the reaction product.
摘要:
A method for detecting hybridization between a probe polynucleotide and a target polynucleotide on a microarray is presented. The method may be used to determine the accuracy of hybridization and possible causes of inaccuracy, such as insufficient washing or deterioration of the microarray.
摘要:
A purpose of the present invention is to provide a gene amplification apparatus with simple operation, wherein the apparatus can heat and cool gene rapidly and a thermal cycle can be operated in a relatively short period and a method thereof, a method for preparing immobilized DNA library suitable to the above apparatus and a method for comparing genes systematically. The apparatus for preparing immobilized DNA library according to the present invention comprises a reaction body 10 on which a grooved portion for receiving a container is formed, a cap portion 50 provided at an upper portion of the reaction body and a container 12 formed by substrates for immobilizing DNA, wherein the cap portion 50 including means for heating/cooling 51 and means for cooling 52.
摘要:
The present invention relates to a unit to be used for detection of interactions of biologically relevant molecules using a carrier on which the biologically relevant molecules are immobilized, comprising: a hollow holder having an open part at one end with the other end being closed; and a carrier-supporting member that can be inserted into the hollow holder, on which is mounted a carrier upon which biologically relevant molecules are immobilized, wherein: while the carrier-supporting member is being inserted into the hollow holder, a rear-end portion of the carrier-supporting member is engaged with an edge of the open part of the hollow holder, so that the hollow holder is sealed and the positions of the carrier-supporting member and the hollow holder are determined; and the area on the left and the area on the right of the axial center, which are defined by the inner side of the hollow holder and the external side of the carrier-supporting member on which the carrier has been mounted, are approximately the same within the region from the carrier-mounting part to the apical part of the carrier-supporting member, as in a section cut along a plane including the axial center of the hollow holder in a positioned state.
摘要:
A method for detecting hybridization between a probe polynucleotide and a target polynucleotide on a microarray is presented. The method may be used to determine the accuracy of hybridization and possible causes of inaccuracy, such as insufficient washing or deterioration of the microarray.
摘要:
A support for fixing a nucleotide that contributes to the efficient clarification of DNA without damaging the terminal parts of the DNA and, therefore, is useful in the fields of biology, biochemistry and the like. This support for fixing a nucleotide is a chemically modified substrate on which oligonucleotide are immobilized characterized in that the oligonucleotide have a restriction enzyme cleavage site. This support is produced by chemically modifying the substrate, immobilizing a single-stranded oligonucleotide thereon, then hybridizing the single-stranded oligonucleotide with another single-stranded oligonucleotide having a base sequence complementary thereto, and ligating an oligonucleotide having a restriction enzyme site at the end thereof.
摘要:
The formation of scale on the inner surfaces of a vessel used for suspension polymerizing vinyl chloride is inhibited by applying a ternary reaction product of furfural, a polyamine and a phenol to said inner surfaces or by adding the ternary product to the polymerization system.