摘要:
An object of the present invention is to provide a method which comprises adhering a biological sample to a film, cutting out a target area of the sample, and then peeling off the film to collect the fragment which was cut out, wherein the operability is good and a cutting sharpness in cutting by a laser beam is good. The present invention provides a method for cutting a biological sample by light irradiation, which comprises locating the biological sample and a colored film having a thickness of 3 to 6 &mgr;m onto one side of a support, and irradiating the biological sample with a light beam, thereby cutting out a target area of the biological sample.
摘要:
An immunoassay element for quantitatively analyzing a macromolecular antigen by determining the change in enzymatic activity caused by a reaction between the macromolecular polymer antigen and an enzyme-labelled antibody. The immunoassay element comprises a substrate layer containing a non-diffusible substrate which forms a diffusible material in the presence of the enzyme, and a reagent layer containing a fragmenting enzyme for further fragmenting the diffusible material into a lower molecular weight product. Also provided is a process for quantitatively analyzing a macromolecular antigen in a sample by the use of the immunoassay element.
摘要:
A water-soluble fluorescent intercalator compound having the formula: F—La—X F is a fluorescent moiety, X is a divalent cyclic group, and La is a linking group, and at least one of X and La has a site imparting water solubility to the compound or a site that is convertible into a site imparting water solubility to the compound is favorably employable as a fluorescent intercalator in a method for fluorometrically detecting complementary DNA fragments.
摘要:
A macro array comprises a film-shaped hard porous body and a plurality of spots, which contain test substances and are arrayed on the film-shaped hard porous body. The film-shaped hard porous body may be constituted of a surface layer region, which is provided with through-pores having a comparatively small mean pore diameter, and a base layer region, which is provided with through-pores having a comparatively large mean pore diameter. The surface of the film-shaped hard porous body, on which surface the spots are to be arrayed, may be coated with an auxiliary substance for promoting fixation of the test substances to the surface of the film-shaped hard porous body.
摘要:
An analysis element for analyzing both amounts of glycated hemoglobin and total hemoglobin in an aqueous liquid sample to determine glycated hemoglobin content ratio in the sample. The element comprises a substrate layer for receiving a reaction mixture after the completion of an immunological reaction between the glycated hemoglobin in the sample and an enzyme-labelled antibody against the glycated hemoglobin, and a reagent layer. The substrate layer contains a non-diffusible substrate which forms a diffusible material in the presence of the enzyme of the enzyme-labelled antibody, the activity of the enzyme being effected relative to the steric hindrance due to the immunological reaction. The reagent layer contains a reagent composition for reacting with the diffusible material to form a dye detectable colorimetrically in a wavelength range which is not effected by an absorption spectrum of the hemoglobin. The total hemoglobin retained in the substrate layer and the dye formed in the reagent layer are colorimetrically analyzed separately, and the glycated hemoglobin content ratio is calculated from respective values. An analysis method using this analysis element is also provided.
摘要:
In an image forming apparatus of transverse transfer type, toner images, carried by a toner-image carrying member extended by a plurality of rollers in a direction perpendicular to a direction of feed of printing paper, are transferred by a transfer opposed roller to the printing paper in a direction perpendicular to the direction of feed of the printing paper to be fixed. Among the rollers extending the toner image-carrying member, at least one of those rollers except for the transfer opposed roller, which comes closest to the transfer opposed roller at starting and terminal ends of a longest path of movement of the transfer opposed roller, respectively, is provided at a position spaced from a transfer surface of the printing paper, to which the toner images are transferred, by a distance larger than a diameter of the transfer opposed roller. With this construction, a non-transfer region, in which the transfer opposed roller can not move, is reduced, and therefore a body of the image forming apparatus can be made smaller in size.
摘要:
In a lathe of a type employing a movable main spindle, the main spindle (2) is moved in a leftward and rightward direction (Y-axis direction) perpendicular to the longitudinal axis of the main spindle (2) after a workpiece (W) has been machined, and during the movement of the main spindle (2), the machined workpiece (W) is unloaded from the main spindle (2). At a position to which the main spindle (2) has further been moved, another workpiece (W) to be subsequently machined is loaded on the main spindle (2). The unloading of the machined workpiece (W) is carried out by a method in which the machined workpiece (W) is ejected by a workpiece eject means (7) built in a chuck (2a) in the main spindle (2).
摘要:
A compound represented by the formula (1): ##STR1## wherein, m is an integer of 1 to 3; n is an integer 0 or 1; A represents CH or N atom, and forms together with the N atom bonded to the carbonyl group a piperidine ring or a piperazine ring; R.sub.1 independently represents a straight or branched chain alkyl group having 1 to 4 carbon atoms; a cycloalkyl group having 3 to 8 carbon atoms; a phenyl group, unsubstituted or substituted with a halogen atom or with an alkoxy group having 1 to 4 carbon atoms; or a pyridyl group; or two R.sub.1, together with the group >CH-- to which they bind, form a dibenzo cycloheptenyl group or a fluorenyl group; R.sub.2 represents a phenyl group substituted with a carboxyl or substituted carboxyl group; a pyridyl group substituted with a carboxyl or substituted carboxyl group, a pyrazyl group substituted with a carboxyl or substituted carboxyl group, an oxazolyl substituted with a carboxyl or substituted carboxyl group, a triazolyl substituted with one or two carboxyl or substituted carboxyl groups, or a phosphonopyridyl group; and R.sub.3 represents an indolyl group unsubstituted or substituted with a substituent selected from the group consisting of a halogen atom, a hydroxy group, an alkoxy group having 1 to 4 carbon atoms and methoxycarbonyl ethyl group and the pharmaceutically acceptable salts thereof.