Japan Science and Technology Agency

Hitachi, Ltd.

Fujifilm Corporation

Hitachi-high-technologies Corporation

Tohoku University

Kuniaki Nagamine

Matsuhiko Nishizawa

Hiroshi Yabu

Masao Kamahori

Yu Ishige

Yuta Saito

Jun Kamei

Tatsuaki Shimazaki

Shun Chihara

Koju Ito

Masafumi Miyake

Kotaro Yamashita

Souichi Kohashi

Yasuhisa Shibata

A hydrogel that adheres to the surface of materials is provided by using as constituent elements a water-soluble main chain monomer, crosslinking agent, polymerization initiator, and adhesive monomer having at least a catechol group in a side chain.

Catechol-containing adhesive hydrogel, composition for preparing adhesive hydrogel, and compositions each including said adhesive hydrogel

A composite material including a substrate, a porous body provided on the substrate, and insulating polymers starting from a surface of the substrate and extending inside the porous body, and a method of producing the composite material.

Composite material and method of producing composite material

There is provided a conductive film having conductivity in a surface direction, being deformable, having excellent durability, and transmitting visible light. A conductive film includes a film substrate and a conductive material layer. The conductive material layer is provided on a first substrate surface of the film substrate. A plurality of through holes penetrating the film substrate and the conductive material layer in a thickness direction are formed in the conductive film. The conductive material layer has a plurality of conductive portions, and the conductive portions are present between adjacent layer opening portions. The number of the conductive portion is 400 per 1 mm, and an opening ratio of the conductive material layer is at least 40%.

Conductive film

Provided is a potentiometric sensor chip in which the positional relationship among a reference electrode, a measurement electrode, and a sample inlet which enables measurement from the start of a reaction is defined, and further provided is a method for detecting the start time of the reaction. A very small amount of sample is measured with high accuracy. The very small quantity of sample is measured by a rate assay. When a reference electrode () is disposed between a sample inlet () and a measurement electrode (), a sample solution arrives at the reference electrode () earlier than at the measurement electrode (), whereby the surface potential of the measurement electrode () can be measured simultaneously when the sample solution arrives at the measurement electrode () and dissolves a reagent and thereby a reaction starts. The arrival of the sample solution at the measurement electrode () can be sensed by detecting the discontinuous change of the voltage observed by a voltmeter () at this time.

Potentiometric-sensor chip, potentiometric assay, and assay kit

The present invention aims to simplify the structure and a fabrication method of an ion-selective electrode in an ion concentration measuring device that measures an anion, particularly a chloride ion, in a biological component. To this end, in a potential difference measuring unit, a quaternary ammonium salt derivative serving as a ligand for an anion is immobilized to the surface of a gold electrode by using as a linker an insulative molecule forming a self-assembled monolayer. The potential difference measuring unit measures an electromotive force generated with anion binding, as an interface potential change on the surface of the gold electrode. In order to reduce the influence of adsorption of impurities on the electrode surface, a high-molecular weight polymer is physically adsorbed on the gold electrode and thus used when a biological component is measured.

Anion concentration measuring device and anion concentration measuring element

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Sendai, Japan

Kuniaki Nagamine