Matsushita Electric Industrial Co., Ltd.

Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Yuko Taniike

Shin Ikeda

Tomoko Kawashima

Takahiro Aoki

Shiro Nankai

Toshihiko Yoshioka

Haruka Kusukame

Mariko Miyashita

Yoshinobu Tokuno

Yuki Namigata

A living body-adhesive sheet of the present disclosure includes a living body-adhesive film and a support. The living body-adhesive film has a thickness of 5 μm or less and contains cellulose. The support supports the living body-adhesive film. The support is formed of a material in which a hydrogen bonding component δH in a Hansen solubility parameter is 2 to 20 MPa.

Living body-adhesive sheet

A cellulose membrane according to an embodiment of the present disclosure is a self-supporting cellulose membrane having a thickness of between 20 nm and 1300 nm, inclusive, composed of regenerated cellulose having a weight average molecular weight of 150,000 or more.

Membrane for sticking to living organism, and method for producing same

The present invention provides an ionic liquid represented by the following chemical formula (I):[(CH)N(CH)OH][NH-L-COO]&#x2003;&#x2003;(I) The present invention also provides an ionic liquid composition containing an ionic liquid; and water. The ionic liquid is represented by the above chemical formula (I). A molar ratio of [(CH)N(CH)OH]to [NH-L-COO]is not less than 0.86 and not more than 1.12. A weight ratio of the water to the ionic liquid composition is not more than 4.7%. The present invention provides an ionic liquid capable of dissolving cellulose without an cellulose-degrading enzyme (namely, an enzyme capable of hydrolyzing cellulose).

Ionic liquid and method for dissolving cellulose using the same

In order to obtain a crosslinked cellulose without derivatization, a polymer according to an embodiment of the present disclosure is a polymer having a structure in which cellulose substantially represented by the following formula (c1) is crosslinked with a polyfunctional epoxy compound: wherein in the formula (c1), n represents an integer of 2 or more.

Polymer and method for producing polymer membrane

The present invention provides an ionic liquid composition containing an ionic liquid and water. The ionic liquid composition does not contain an enzyme capable of hydrolyzing cellulose. The ionic liquid is represented by the following chemical formula (I): [(CH)N(CH)OH][NH-L-CHNH&#x2014;COO](I); where L is absent or a linker. A molar ratio of [(CH)N(CH)OH]to [NH-L-CHNH&#x2014;COO]is not less than 0.87 and not more than 1.14. A weight ratio of the water to the ionic liquid composition is not more than 7.3%. The present invention provides an ionic liquid composition capable of dissolving cellulose without a cellulose-degrading enzyme, namely, an enzyme capable of hydrolyzing cellulose.

Ionic liquid composition and method for dissolving cellulose using the same

An ionic liquid represented by the following chemical formula, [(CH)N(CH)OH][NH(CH)CH(NH)COO], which provides an ionic liquid capable of dissolving cellulose within twenty-four hours.

The present invention provides an ionic liquid represented by the following chemical formula, [(CH)N(CH)OH][NH(CH)CH(NH)COO]. The present invention provides an ionic liquid capable of dissolving cellulose within twenty-four hours.

A biosensor and a biosensor measuring apparatus whose performance can be easily determined by an ordinary user are provided. A biosensorincludes a substratehaving a quality deciding sectionand a sample receiving sectionprovided on the substrateto which a sample is supplied. The quality deciding sectionincludes a moisture absorbing material changed in color through absorption of moisture. The sample receiving sectionhas a reagent sectionincluding an enzyme reacted with a test substance as a substrate. The quality deciding sectionincludes a recessformed in the substrate, the moisture absorbing materialdisposed in the recessand a filmwith no air permeability substantially covering the opening of the recessand closely adhered to the moisture absorbing material. Cobalt salt is used as the moisture absorbing material

Biosensor, biosensor measuring apparatus and measurement method

An adaptor for body fluid measurement of the present invention includes a puncture instrument holding section for detachably carrying a puncture instrument for protruding a puncture needle and a measuring instrument holding section for detachably carrying a measuring instrument for analyzing body fluid with a biosensor, the biosensor being attached to the measuring instrument and having a body fluid supply part to which body fluid is supplied. With use of the adaptor, the body fluid can be measured easily and speedily with the puncture instrument and the measuring instrument attached thereto, which are independent from each other. The present invention further provides a measuring instrument including a puncture instrument holding section.

Body fluid measuring adapter and body fluid measuring unit

The present invention relates to a biological component measurement apparatus set, in which a puncture mechanism for puncturing skin of a subject to collect a sample blood is integrated with a biosensor measurement apparatus. The puncture mechanism includes a puncture needle, and a cap which is detachably engaged with a body of the apparatus, wherein the cap has a skin contact surface which is brought into contact with the skin for puncturing. The skin contact surface having an opening through which the puncture needle moves to puncture the skin, and is shaped so as to fit a surface shape of the skin to be punctured. The set includes a plurality of different caps each corresponding to a different sample collection site so that a plurality of different sample collection sites can be selected.

Apparatus for measuring biological component

The present invention provides a biosensor having a favorable response characteristic up to a high concentration range, a low blank response and a high storage stability. This sensor comprises an electrode system including a working electrode and a counter electrode, for forming an electrochemical measurement system by coming in contact with a supplied solution; an electrically insulating supporting member for supporting the electrode system; a first reagent layer formed on the working electrode; and a second reagent layer formed on the counter electrode, wherein the first reagent layer comprises an enzyme as the main component, and the second reagent layer comprises an electron mediator as the main component.

Biosensor

The present invention provides a highly sensitive biosensor capable of yielding good response even when the amount of a sample is extremely small. The biosensor of the present invention includes: a first insulating base plate which has a working electrode comprising a plurality of branches and a first counter electrode comprising a plurality of branches, the branches of the working electrode and the first counter electrode being arranged alternately; a second insulating base plate which has a second counter electrode and which is disposed at a position opposite to the first insulating base plate; a reagent system comprising an oxidoreductase; and a sample supply pathway formed between the first and second insulating base plates, wherein the branches of the working electrode and the first counter electrode that are arranged alternately, the second counter electrode, and the reagent system are exposed in the sample supply pathway.

Biosensor with interdigitated electrodes

In biosensor system, biosensoris mounted in measuring apparatusfor quantifying or detecting existence of a targeted substrate in a sample solution. Mounting end portionof biosensorto be mounted in measuring apparatushas an extension of one base plate in the length direction, and further extensions of the other base plate in the width direction. Sensor mounting portionof measuring apparatushas a shape matching up with the shape of mounting end portion. Thereby wrong insertion of biosensorin measuring apparatuscan be prevented. Further, varying shapes of plural biosensorsandto have a common part and a non-common part, such biosensors can be handily measured by one measuring apparatus

Biosensor and measuring apparatus for biosensor

A highly sensitive biosensor that uses a smaller amount of sample for measurement is described. The biosensor includes a first insulating base plate having a working electrode, a second insulating base plate having a counter electrode opposed to the working electrode, and a reagent layer containing at least an oxidoreductase. The biosensor further includes a sample supply pathway formed between the first and second insulating base plates, where the working electrode, counter electrode and reagent layer are exposed to an inside of the sample supply pathway, and the distance between the working electrode and the counter electrode is 150 &#x3bc;m or less.

The present invention provides an analytical element which is free from evaporation of a sample during measurement and therefore capable of quantifying a substrate using a very small amount of sample with high accuracy and which is free from scattering of the sample during and after the measurement and therefore hygienically excellent; and a measuring device and a substrate quantification method using the same. The analytical element comprises a cavity for accommodating a sample, a working electrode and a counter electrode exposed to an inside of the cavity, a reagent layer which comprises at least an oxidoreductase and is formed inside or in the vicinity of the cavity, an opening communicating with the cavity and a member covering the opening.

Growing community of inventors

Osaka, Japan

Yuko Taniike