HIGH SENSITIVITY DETECTION OF PROTEIN

    公开(公告)号:JPS63206658A

    公开(公告)日:1988-08-25

    申请号:JP3995387

    申请日:1987-02-23

    Abstract: PURPOSE:To safely and economically detect the protein immobilized on a membrane with high sensitivity, by adsorbing palladium colloid by protein and applying the electroless plating of a base metal to said protein to sensitize the same. CONSTITUTION:In detecting the protein immobilized on a membrane, this membrane is treated with palladium colloid stabilized with a nonionic surfactant. As the membrane used in the immobilization of protein to be detected, any one commonly used in a gold colloid method is used. As a method for immobilizing protein to be inspected on the membrane, for example, an electroblotting method is used. Subsequently, the electroless plating of a base metal is further applied to the membrane thus treated to sensitize the protein. This electroless plating is a catalytic chemical plating utilizing the catalytic activity of palladium and a metal is selectively precipitated on a metal surface having catalytic action. By applying immersion treatment to the treated membrane in an electroless plating liquid, the base metal is precipitated on palladium colloidal particles from said plating liquid and, therefore, protein can be detected with high sensitivity.

    PRODUCTION OF NOBLE METAL CATALYST CARRIED ON ION-EXCHANGE RESIN

    公开(公告)号:JPS63178851A

    公开(公告)日:1988-07-22

    申请号:JP31825787

    申请日:1987-12-16

    Abstract: PURPOSE:To efficiently produce the title catalyst having high activity with good reproducibility by bringing a noble metal hydrosol into contact with an anion-exchange resin having a quaternary ammonium group to deposit the noble metal colloidal particles on the resin surface. CONSTITUTION:The noble metal hydrosol is brought into contact with the anion-exchange resin having a quaternary ammonium group to deposit the noble metal colloidal particles on the resin surface, and the deposition type noble metal catalyst is produced. As a result, the solid catalyst carrying fine noble metal colloidal particles can be easily and efficiently produced. The obtained solid catalyst has a large catalytic surface area and can be widely used in the catalytic reactions ranging from the liq. phase reaction to the gas phase reaction, the recovery is also easy, and the reproducibility of the catalytic activity is excellent.

    METHOD FOR PLATING MOLDED BODY OF POLYVINYLIDENE CHLORIDE WITH METAL

    公开(公告)号:JPS62207876A

    公开(公告)日:1987-09-12

    申请号:JP5204686

    申请日:1986-03-10

    Abstract: PURPOSE:To form a metallic film having superior adhesion on a molded body of polyvinylidene chloride by chemical plating by etching the surface of the molded body, treating it with palladium hyudrosol contg. a cationic surfactant and carrying out chemical plating. CONSTITUTION:A molded body of polyvinylidene chloride is immersed in an aqueous soln. of an alkali metallic hydroxide such as NaOH to etch the surface of the molded body. The molded body is then immersed in palladium hydrosol contg. a cationic surfactant such as a quat. ammonium salt type surfactant to stick palladium colloid to the surface of the molded body and the molded body is chemically plated with a metal such as Ni, Co, Cu or Ag. By this method, a metallic film having superior adhesion can be formed on the surface of the molded body by chemical plating with high reproducibility.

    THIOPHENE POLYMER AND PRODUCTION THEREOF

    公开(公告)号:JPS61209224A

    公开(公告)日:1986-09-17

    申请号:JP4681885

    申请日:1985-03-09

    Abstract: PURPOSE:To produce novel poly-[2,5-(3-ethylthienylene)] useful as electronic devices, polymeric materials, optical materials, etc., by carrying out the electrolytic polymerization of 3-ethylthiophene, and subjecting the product to electrolytic reduction. CONSTITUTION:3-Ethylthiophene is subjected to the electrolytic polymerization in a solvent (e.g. propylene carbonate, etc.) containing supporting electrolyte (e.g. hexafluorophosphoric acid ion) and the product is subjected to the electrolytic reduction to obtain the objective polymer.

    PRODUCTION OF CONJUGATED POLYMER, POLY-2,5-PYRIDINEDIYLVINYLENE

    公开(公告)号:JPH0782350A

    公开(公告)日:1995-03-28

    申请号:JP24859693

    申请日:1993-09-10

    Abstract: PURPOSE:To provide a production process of poly-2,5-pyridinediylvinylene in which the sulfonium salt elimination process problematic in its inapplicability to industrial production is not used, a monomer stable at room temperature is used as the monomer used in the polymerization, the polymer is easily formed, and the polymer is easily purified, and which is suited for industrial production. CONSTITUTION:A 2,5-dihalomethylpyridine is polymerized in the presence of a base by a process of polymerization through dehydrohalogenation to obtain a polymer represented by the formula. The obtained polymer is subjected to heat treatment at 230-300 deg.C in a nitrogen or inert gas stream or in a vacuum to eliminate the residual halogen part of this polymer and to thereby improve the convertion into the polymer.

    QUATERNARY AMMONIUM TRIHALIDE AND METHOD FOR DISSOLVING METAL BY THE ABOVE

    公开(公告)号:JPH04107223A

    公开(公告)日:1992-04-08

    申请号:JP22629790

    申请日:1990-08-28

    Abstract: PURPOSE:To easily dissolve many metals by bringing metals into contact with an organic solvent in the presence of quaternary ammonium trihalide obtd. by the reaction between a cationic surface active agent and halogen simple substance. CONSTITUTION:A cationic surface active agent and halogen simple substance expressed by a general formula [RidenticalN-R'] .X (in the formula, RidenticalN denotes trialkylamino groups or pyridyl groups, R' denotes 6 to 22 C alkyl groups and X denotes halogen atoms) are dissolved in liquid hydrocarbon, and they are brought into reaction. By bringing metals into contact with the formed quaternary ammonium trihalide shown by a general formula [RidenticalN-R'] .X (in the formula, RidenticalN denotes trialkylamino groups or pyridyl groups, R' denotes 6 to 22 C alkyl groups and X denotes halogen atoms) and an organic solvent, the metals are converted into compounds easy to dissolve and are easily dissolved.

    METHOD FOR DECOLORING FORMED FIBER PRODUCT COLORED WITH FINE GOLD PARTICLE

    公开(公告)号:JPH0424293A

    公开(公告)日:1992-01-28

    申请号:JP12454490

    申请日:1990-05-15

    Abstract: PURPOSE:To readily and completely decolor a colored formed fiber product colored with fine gold particles by treating the aforementioned formed product in water or an organic solvent liquid containing a simple halogen substance or soluble halogenate. CONSTITUTION:A formed fiber product colored with fine gold particles is dipped and treated in water or an organic solvent containing a simple halogen substance (e.g. bromine or iodine) or a soluble halogenate (e.g. potassium iodide, calcium bromide or ammonium bromide), e.g. a solution of methanol, ethanol or acetone, readily and completely decolored at a low cost. Decoloring can be carried out many times according to the above-mentioned method to perform redyeing.

    METHOD FOR MELTING METAL
    40.
    发明专利

    公开(公告)号:JPH03158422A

    公开(公告)日:1991-07-08

    申请号:JP29848789

    申请日:1989-11-16

    Abstract: PURPOSE:To economically and safely dissolve metals by bringing the metals into contact with a quaternary ammonium compound represented by a specific formula and halogenated hydrocarbon. CONSTITUTION:Metals are brought into contact with a quaternary ammonium compound represented by a formula I and halogenated hydrocarbon. Further, the metals are brought into contact with a polar solvent. In the formula I, at least one among R1, R2, R3, and R4 is means chloride ion or bromide ion. By this method, the application of this method to many metals can be attained.

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