Fujifilm Corporation

Japan Technological Research Association of Artificial Photosynthesis Chemical Process

Yoshihiro Aburaya

Makoto Sawada

Naoyuki Nishikawa

Jiro Tsukahara

Yoichi Hosoya

Yuichi Wakata

Satoshi Yoneyama

Kazuki Yamazaki

Junichi Katada

Hiroyasu Ishii

Takafumi Hosokawa

Hiroshi Nagate

Atsuhiko Wada

Hiroyuki Yaegashi

Dai Ujihara

Junya Yoshida

Daisuke Hiraki

Hiroyuki Kobayashi

Satoshi Yoshida

Saori Matsuyama

Kenichi Moriwaki

Katada Junichi

Wada Atsuhiko

Ujihara Dai

There are provided a concentration device for concentrating a sample solution, which makes it possible to obtain a sample solution concentrated solution having a desired concentration fold ratio, a sample solution concentration method using the concentration device, a sample solution concentration method using the sample solution examination method, and an examination kit including the concentration device. The concentration device is a concentration device for concentrating a sample solution which is an aqueous solution containing a high-molecular-weight molecule, the concentration device including a cylinder that accommodates a particulate super absorbent polymer and a piston that is insertable into the cylinder, where the cylinder has, at a bottom part, a liquid holding part for holding a part of the sample solution injected into the cylinder, the super absorbent polymer is accommodated in the cylinder to be in contact with the liquid holding part on the liquid holding part, and the piston includes the tip part having holes smaller than the particle diameter of the super absorbent polymer after water absorption.

Concentration device, sample solution concentration method, sample solution examination method, and examination kit

An immunochromatography including steps of mixing an antigen-containable specimen and modified magnetic particles, which are magnetic particles modified with a substance having a specific affinity to the antigen; collecting the magnetic particles using magnetism; dissociating the modified magnetic particles to obtain an antigen-concentrated solution by mixing the collected magnetic particles with a dissociation solution, an amount of which is smaller than the antigen-containable specimen; obtaining a neutralized antigen-concentrated solution; spreading gold particle composite bodies on an insoluble carrier having a reaction site at which a second binding substance has been immobilized, in a state where the gold particle composite bodies which are composite bodies of an antigen in the neutralized antigen-concentrated solution and modified gold particles which are gold particles modified with a first binding substance are formed; capturing the gold particle composite bodies at the reaction site; and silver-amplifying the gold particle composite body.

Immunochromatography

An object of the invention is to provide a method for detecting an objective substance, by which a plurality of kinds of objective substances can be detected by a single detection, in the detection of an objective substance from an analyte by utilizing magnetic force. In a case where an objective substance is detected by causing magnetic particles and labeling particles to bind to an objective substance and causing a conjugate thereof to move by magnetic force, the object is addressed by using a plurality of labeling particles including first labeling particles that bind to at least a first objective substance, and second labeling particles that bind to the first objective substance and bind to an objective substance to which the first labeling particles do not bind; and detecting an objective substance with a combination of bound labeling particles, the labeling particles satisfying at least one of a first condition that the particle sizes are different or a second condition that the signal lights generated upon light irradiation are different.

Method for detecting objective substance

Provided are a photocatalyst electrode, an artificial photosynthesis module, and an artificial photosynthesis device that have low electrical resistance, even in a case where the area is increased, in a case where a transparent conductive layer is used. The photocatalyst electrode is a photocatalyst electrode that has a substrate, a transparent conductive layer, a photocatalyst layer, and a linear metal electrical conductor, and splits water with light to produce a gas. The substrate, the transparent conductive layer, and the photocatalyst layer are laminated in this order, and the linear metal electrical conductor is in contact with the transparent conductive layer. The artificial photosynthesis module has the oxygen evolution electrode that splits the water with the light to produce oxygen, and a hydrogen evolution electrode that splits the water with the light to produce hydrogen. The oxygen evolution electrode and the hydrogen evolution electrode are disposed in series in a traveling direction of the light. At least one of the oxygen evolution electrode or the hydrogen evolution electrode has the configuration of the above-described photocatalyst electrode. The artificial photosynthesis device has the artificial photosynthesis module, and circulates and utilizes water.

Artificial photosynthesis module

Provided is a method of producing a composite, which is capable of preventing a silicone coating solution, which becomes a silicone resin layer that prevents an acidic gas separation layer from entering a porous support, from entering the porous support, preventing a porous film and an auxiliary support film from being peeled off, and suitably forming a dense silicone resin layer on the surface of the porous support. The method thereof includes a coating process of coating the surface of the porous film side of the porous support with the silicone coating solution which becomes a silicone resin layer according to a roll-to-roll system. In the coating process, the conveying speed of the porous support is in a range of 0.5 m/min to 200 m/min, the viscosity of the silicone coating solution is in a range of 100 cP to 1000000 cP, and the peel force between the porous film and the auxiliary support film is 10 mN/min or greater.

Method of producing composite

There is provided a method of producing a composite which is capable of suitably forming a silicone resin layer for preventing the facilitated transport film from entering the porous support in an acidic gas separation film formed by forming a facilitated transport film on a porous support, and the composite. The problem is solved by the method of producing a composite including hydrophilizing the surface of the porous support using a roll-to-roll system; and coating the hydrophilized surface of the porous support with a silicone coating solution that becomes the silicone resin layer using the roll-to-roll system.

Method of producing composite, and composite

Preparing forming coating liquid for an acid gas separation facilitated transport membrane which includes a hydrophilic compound, an acid gas carrier, and water, coating the forming coating liquid, using a layered film layered in the order of a hydrophilic porous film, a hydrophobic porous film, and an auxiliary support film as a porous support, on a surface of the hydrophilic porous film of the layered film with a liquid film thickness of 0.3 mm to 1.0 mm and drying the coated liquid to form a first acid gas separation facilitated transport membrane, and further coating the forming coating liquid for the acid gas separation facilitated transport membrane on the surface of the hydrophilic porous film with the previously formed acid gas separation facilitated transport membrane and drying the coated liquid to form a next acid gas separation facilitated transport membrane.

Method of producing composite for acid gas separation

A solution is to produce an acid gas separation composite membrane provided with an acid gas separation facilitated membrane on a porous support, including; arranging of a coating liquid for acid gas separation formed through dispersing or dissolving into water a polyvinyl acetal compound formed through crosslinking, by an acetal bond, block copolymers formed through bonding of a polymer block formed of polyvinyl alcohol and a polymer block formed of polyacrylate through a linking group, an acid gas carrier and at least one kind of anion other than hydroxide ion, carboxyl ion, carbonate ion and bicarbonate ion, and coating of the coating liquid for acid gas separation onto a hydrophobic surface of the porous support having hydrophobicity at least on one surface to form the acid gas separation facilitated transport membrane thereon.

Method for producing acid gas separation composite membrane, and acid gas separation membrane module

Coating a hydrogel-state coating liquid containing at least a hydrophilic compound and an acid gas carrier on one surface of a hydrophobic porous body having three-dimensional network structure formed through intersecting, coupling or branching of a plurality of fibrils, and a large number of pores formed of microscopic interstices divided by the plurality of fibrils to form a facilitated transport membrane thereon. The hydrophobic porous body has an average inter-fibril distance of 0.001 &#x3bc;m or more and 2 &#x3bc;m or less inside a plane in parallel to a surface on which the acid gas separation facilitated transport membrane is formed, an average fibril length of 0.01 &#x3bc;m or more and 2 &#x3bc;m or less inside the plane, and an average inter-fibril distance of 0.001 &#x3bc;m or more and 2 &#x3bc;m or less in a direction perpendicular to the surface.

There is provided a high-quality spiral-type acidic gas separation module which is obtained by winding a laminate including an acidic gas separation layer that has a facilitated transport film and which has no defects in the facilitated transport film, in which the average value of the fiber diameter of a supply gas channel member is in a range of 100 &#x3bc;m to 900 &#x3bc;m, and the area ratio of concave portions inscribed in a hemisphere having a diameter greater than or equal to three-quarters of the fiber diameter of the supply gas channel member is 50% or less with respect to a surface of an auxiliary support film of a porous support that is on the side opposite to the facilitated transport film.

Spiral-type acidic gas separation module

A carbon dioxide separation member is disclosed, which includes: a hydrophobic porous membrane that has heat resistance to a temperature of 100&#xb0; C. or higher; and a polymer compound layer that is formed on a surface of the porous membrane, the polymer compound layer including moisture, and at least one carbon dioxide carrier selected from the group consisting of alkali metal carbonates, alkali metal bicarbonates, and alkali metal hydroxides, and having a cross-linked structure that is formed with a specific single crosslinkable group and includes a specific hydrolysis-resistant bond, wherein the carbon dioxide separation member selectively allows a carbon dioxide gas in a mixture of the carbon dioxide gas and a hydrogen gas to permeate therethrough under temperature conditions of from 100&#xb0; C. to 250&#xb0; C.

Carbon dioxide separation member, method for producing same, and carbon dioxide separation module

An electronic device including a first electrode that is provided on a substrate and includes an Mo&#x2014;Nb alloy, an insulating film disposed on the first electrode, and a second electrode disposed on the first electrode with at least the insulating film interposed between the first electrode and the second electrode; and a method for producing the electronic device are provided.

Growing community of inventors

Ashigarakami-gun, Japan

Yoshihiro Aburaya