Abstract:
PROBLEM TO BE SOLVED: To provide a method for measuring an analyte in a liquid sample by means of an examination system which includes two compartments. SOLUTION: A detection reaction, necessary for measuring the analyte in the liquid sample, is carried out in the inside of a first compartment, and analytical measurement of an index substance, which is at least one substance concerned with the detective reaction and different from the analyte, is carried out inside side a second compartment. Two compartments allow the index substance to enter the second compartment, and separation is carried out, while at least partially preventing entrance of another substance, capable of disturbing the analytical measurement of the index substance in the second compartment. As a captured substance, at least another substance capable of selectively condensing the index substance in the inside of the second compartment is fixed inside the second compartment. The analyte can be measured by using this examination system. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an inherent control system surely indicating the possibility that analytical elements are unusable, as a result of inappropriate storage or transport conditions. SOLUTION: A reagent system is used for the so-called "intrinsic control of an analytical element", specially a test strip, containing organic N-oxide or a nitroso compound, the analytical element includes both a reagent system for detection reaction and a reagent system for inherent control. In an analytical element inspecting method, the reagent system for inherent control is inspected optically or electrochemically, through the use of measuring apparatus to changes capable of indicating stress of the analysis element. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an oxidation/reduction-active compound as a detection reagent for measuring fluorescence in analyte, for solving defects in prior art at least partially. SOLUTION: A method for detecting analyte by oxidation/reduction reaction and fluorescence measurement brings a sample, containing analyte into contact with the detection reagent containing a compound expressed by as a fluorescent oxidation reduction indicator. NBD-amine-N-oxide, or its derivative is obtained as a redox indicator. In this manner, NBD-amine formed by reduction features high fluorescence and can be extremely easily excited by blue light irradiation, thus solving nonconformities, where the number of these known as a compound for use, for example, especially strong blue and read LEDs is not sufficient, since an excitation light source to be used is limited mainly to UV and green regions in known fluorescence detection reagents. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a method and a reagent kit n for fluorometry of an analyte, and a novel oxidation-reduction active compound serving as a fluorescent reagent for the analyte. SOLUTION: In this method for detecting the analyte by an oxidation-reduction reaction and the fluorometry, a sample containing the analyte is brought into contact with a detecting reagent containing a compound expressed by the following general formula (1): Q-F(Q is a quencher group, and F is a fluorophore group) as a fluorescent oxidation-reduction indicator. Examples favorable as the reducible quencher group are quinones, aromatic nitroso compounds such as nitrosoanilines and other nitrosobenzene derivatives, and N-oxides. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing method of a polymer layer on a supporting part, the method being capable of manufacturing the polymer layer having a predetermined uniform thickness by a simple method. SOLUTION: The manufacturing method of a polymer layer on a transparent support comprises the steps of: (a) disposing the supporting part; (b) applying a photopolymerizable liquid composition on the support; (c) irradiating the photopolymerizable liquid composition through the support so that the liquid composition is partially polymerized and a polymer layer having a predetermined thickness is formed on the supporting part; and (d) removing the residual liquid composition from the polymer layer. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a stable nicotinamide adenine dinucleotide (NAD/NADH) and nicotinamide adenine dinucleotide phosphate (NADP/NADPH) useful for biochemical detection. SOLUTION: A test element for specimen measurement contains a compound having a specific structure or its salt or arbitrary reduced-type derivatives free from sensitivity to hydrolysis and active as a coenzyme in enzymatic reaction. A system for stable bioanalysis, especially for the determination of glucose can be attained by the test element. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a stable bioanalytical measuring system, in particular for determining glucose, which avoids the sensitivity to hydrolysis of NAD/NADP and at the same time acts as a coenzyme in an enzyme reaction.SOLUTION: Nicotinamide adenine dinucleotide (NAD/NADH) derivatives and nicotinamide adenine dinucleotide phosphate (NADP/NADPH) derivatives represented by formula (I), enzyme complexes of these derivatives, their use in biochemical detection methods, and reagent kits thereof are provided.
Abstract:
PROBLEM TO BE SOLVED: To remarkably reduce a dependency with respect to a wavelength of fluorescent excitation light, and to change the fluorescent excitation maximum of a fluorescence emission group. SOLUTION: A detecting medium containing the fluorescence emission group or a precursor of the fluorescence emission group is mixed with an absorber having an absorption spectrum overlapped with a fluorescent excitation range of the fluorescence emission group. A system generated in the detecting medium and comprising the fluorescence emission group and the absorber has a changed effective fluorescent excitation range accompanied with the changed fluorescent excitation maximum. Irradiation by the fluorescent excitation light is executed within the range of the changed excitation maximum. A measured signal obtained from fluorescence emission measurement indicates only the low dependency with respect to the wavelength of the excitation light. Further, an inexpensive light source such as UV LEDs may be usable because of the changed wave length of the excitation light. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a test element capable of carrying out a secure and quantitative identification of a sample in short time, and easily producible. SOLUTION: The invention relates to the test element for optically detecting an analyte in a specimen, comprising (a) a carrier which is at least partially, optically, and substantially transparent, and (b) a single layered reaction film of COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
The invention concerns the enzymatic synthesis of stable analogues of nicotinamide adenine dinucleotide NAD/NADH and nicotinamide adenine dinucleotide phosphate NADP/NADPH, the so-called "carba-NADs", i.e. analogues of NAD/NADH or NADP/NADPH, respectively, comprising a carbacyclic sugar instead of ribose.