摘要:
4-Hydroxypyridine derivative represented by the following formula ##STR1## wherein R represents a methyl group or an isopropyl group, and the method for preparing the derivative comprising the step of cultivating a strain belonging to Streptomyces karnatakensis are disclosed. Also disclosed are the pharmaceutical composition comprising the same and a method for treating circulatory diseases comprising the step of administering said compound to a patient.
摘要:
Adriamycin derivatives represented by formula (I) ##STR1## wherein R denotes a divalent hydrocarbon group,CD denotes a cyclodextrin residue,m is 1 to 8, andn is 0 to 8.The compounds exhibit excellent anti-cancer activity over a wide administration range, have low toxicity and sustained release, and maintain activity for a long period of time; thus, they are quite useful as an anti-cancer agent.
摘要:
The present invention provides a simple and highly reliable cell collection system with high throughput and improved in cell collection efficiency. In the present invention, one or more pores are formed in a cell collection plate. One surface of the plate can be directly introduced in e.g., a petri dish, so as to be in contact with a solution containing cells. In this case, means for obtaining an optical image of collected cells from its rear surface is provided to improve reliability and convenience during a cell collection process. Alternatively, the vicinities of the pores in the cell collection plate are only hydrophilized and the other region is made water repellent to improve the efficiency of cell collection.
摘要:
The invention provides a method in which an annular or spiral droplet holder formed of wire is used to hold a droplet in a state of being hung therefrom or being contained therein. A means for moving the droplet holder is added to the droplet holder to enable droplet transfer. To merge two droplets, they are brought into contact. To drip the droplet held by a droplet holder formed of wire, the droplet holder is deformed using an external force. A light path which passes through a droplet is set to enable optical measurement. The present invention enables inexpensive, simple droplet transfer. An inexpensive, simple configuration for handling droplets in the fields of chemical analysis, biochemical analysis, and automatic blood analysis can be realized according to the present invention.
摘要:
A chemiluminescence detecting apparatus includes a thing called a plate where many reaction chambers are one-dimensionally or two-dimensionally arranged, and enzymes packed in a gel and DNA-immobilized beads are simultaneously charged into the reaction chambers, thereby trapping a large amount of enzymes in the reaction chambers, improving enzyme activity and achieving high sensitive pyrosequencing.
摘要:
The present invention relates to a probe synthesis method and a probe synthesis kit for nucleic acid detection, which are intended for the fluorophore labeling and detection of a target gene. In this method, a probe unit for analyte nucleic acid recognition having a base sequence specific to an analyte nucleic acid and plural labeled probe units each having a fluorophore labeled internal base are hybridized to oligonucleotides complementary thereto, and the adjacent probe units are bonded by ligation. As a result, an analytical probe with increased fluorescence intensity is synthesized easily and inexpensively, while the number of fluorophore labels is controlled.
摘要:
A chip carrier includes a metal-coated portion formed on a front surface of a substrate and to be mounted a device, and a rear surface of the substrate being coated with a metal, in which a metal-coated portion is formed on a side surface of the substrate and the metal-coated portion on the front surface of substrate is connected with the metal-coated portion on the rear surface by the metal-coated portion formed on the side surface of the substrate, thereby maintaining frequency characteristics of the optical semiconductor device.
摘要:
The present invention relates to a method, a device, and an apparatus for analyzing the expression of a gene in single cells. Specifically, the present invention relates to: a device for gene expression analysis, characterized by including a support, in which a nucleic acid probe having a test nucleic acid capture sequence and a known sequence, and further containing a cell recognition tag sequence which differs depending on the difference in position on the surface of the support or in the vicinity of the surface thereof, and a common primer sequence having a known sequence is two-dimensionally distributed and immobilized on the surface of the support or in the vicinity of the surface thereof; and a method and an apparatus using the device for gene expression analysis.
摘要:
The invention provides a method in which an annular or spiral droplet holder formed of wire is used to hold a droplet in a state of being hung therefrom or being contained therein. A means for moving the droplet holder is added to the droplet holder to enable droplet transfer. To merge two droplets, they are brought into contact. To drip the droplet held by a droplet holder formed of wire, the droplet holder is deformed using an external force. A light path which passes through a droplet is set to enable optical measurement. The present invention enables inexpensive, simple droplet transfer. An inexpensive, simple configuration for handling droplets in the fields of chemical analysis, biochemical analysis, and automatic blood analysis can be realized according to the present invention.
摘要:
In the semiconductor laser or electro-absorption optical modulator that includes strained quantum well layers as active layers, making laser characteristics or modulator characteristics adequate has seen the respective limits since band structures, especially, ΔEc and ΔEv, have been unable to be adjusted independently.This invention is constructed by stacking an n-type InGaAlAs-GRIN-SCH layer 3, an MQW layer 4, a p-type InGaAlAs-GRIN-SCH layer 5, a p-type InAlAs electron-stopping layer 6, and others, in that order, on an n-type InP wafer 1; wherein the MQW layer 4 includes InGaAlAs-strained quantum well layers and InGaAlAsSb-formed barrier layers each having strain of an opposite sign to the strain applied to the quantum well layers.