摘要:
A biostimulation apparatus of the present invention includes a laser oscillator for oscillating an ultra short pulsed laser beam and an optical system for focusing the ultra short pulsed laser beam, wherein the ultra short pulsed laser beam is focused by the optical system at a target portion of a living subject to cause the target portion to be irradiated with the laser beam to stimulate an acupuncture point, and wherein the target portion is either the acupuncture point or its periphery.
摘要:
A biostimulation apparatus of the present invention includes a laser oscillator for oscillating an ultra short pulsed laser beam and an optical system for focusing the ultra short pulsed laser beam, wherein the ultra short pulsed laser beam is focused by the optical system at a target portion of a living subject to cause the target portion to be irradiated with the laser beam to stimulate an acupuncture point, and wherein the target portion is either the acupuncture point or its periphery.
摘要:
A cell sorting device using an inexpensive chip capable of being exchanged for each sample. The chip includes: a first flow path allowing buffer fluid containing cells to flow down; second and third flow paths which put the first flow path therebetween and allow buffer fluid not containing cells to flow down; a fourth flow path which allows the buffer fluid as a single flow path formed by joining the buffer fluids in the other three flow paths; a cell detecting region for detecting cells flowing with the buffer fluid down the fourth flow path; and a cell sorting region for sorting the cells according to a type of the cells detected. The first to fourth flow paths are cascaded, are supplied with the buffer fluid from reservoirs with the same fluid level, and have substantially the same width or cross-section area.
摘要:
There is used at least one probe array obtained by arraying particles having various probes, respectively, fixed thereon (probe particles) in a definite order in a holder. A plurality of capillaries or grooves packed with various kinds, respectively, of probe particles are arrayed in parallel, and one of particles contained in each capillary or groove is injected into another capillary or groove to produce a probe array in which the various kinds of probe particles are arrayed in a constant and definite order. Various fluorophore-labeled DNA's are measured at the same time by attaching various probes to particles, respectively, of different sizes. A probe array composed of various fixed DNA probes can easily be produced, and there can be provided a probe array for detecting various DNA's which is composed of various fixed arbitrary DNA probes.
摘要:
The present invention provides a cell sorting device using an inexpensive chip capable of being exchanged for each sample for cell sorting. The cell sorting device uses flow paths formed on the substrate and has the following structure. The chip includes: a first flow path allowing a buffer fluid containing cells to flow down; second and third flow paths which put the first flow path therebetween and allow a buffer fluid not containing cells to flow down from both sides of the first flow path; a fourth flow path which allows the buffer fluid as a single flow path formed by the join of the buffer fluid in the first flow path and the buffer fluid in the second and third flow paths; a cell detecting region for detecting cells flowing with a buffer fluid down the fourth flow path; a cell sorting region for sorting the cells according to a type of the cells detected. The first flow path, the second and the third flow paths, the fourth flow path, the cell detecting region and the cell sorting region provided in a cascade. Two flow paths are provided to allow the cells sorted to flow downstream of the cell sorting region. The buffer fluid flowing in the first to the fourth flow paths is supplied from reservoirs having the same fluid level. The first flow path and the fourth flow path are structured to have substantially the same width or cross-section area.
摘要:
A chemical reaction device is provided for a chemical reaction between molecules immobilized on a solid phase and molecules in a solution, and a chemical analysis device is also provided to capture molecules in the solution by molecules immobilized on the solid phase through a chemical reaction and subsequent measurement of the captured molecules. Reaction efficiency as well as sample throughput are thereby improved. The chemical reaction device and the chemical analysis device use a channel of a microfluidic device for a reaction vessel, and at least a particular molecule is immobilized on an interior surface and a fixed structure or a non-fixed obstacle against a flow is provided in the channel. In a typical reaction vessel having an enzyme immobilized on an interior surface of a capillary and glass beads functioning as an obstacle for the flow filled in the channel of the capillary, a reaction solution can move either in one direction or back and forth in two directions to thereby undergo a reaction with the enzyme immobilized on the interior surface. The flow of the reaction solution is not a laminar flow so that a reaction between the particular molecule immobilized and the reaction solution proceeds at high efficiency.
摘要:
Different probes each having a specific base sequence are immobilized to each of independent areas formed on the surface of a substrate, complementary polynucleotides in a sample solution are hybridized to the probes, and each of the independent areas on the substrate is heated and then cooled in sequence, and hence the solution is recovered to extract different polynucleotides separately corresponding to individual probes.
摘要:
There is used at least one probe array obtained by arraying particles having various probes, respectively, fixed thereon (probe particles) in a definite order in a holder. A plurality of capillaries or grooves packed with various kinds, respectively, of probe particles are arrayed in parallel, and one of particles contained in each capillary or groove is injected into another capillary or groove to produce a probe array in which the various kinds of probe particles are arrayed in a constant and definite order. Various fluorophore-labeled DNA's are measured at the same time by attaching various probes to particles, respectively, of different sizes. A probe array composed of various fixed DNA probes can easily be produced, and there can be provided a probe array for detecting various DNA's which is composed of various fixed arbitrary DNA probes.
摘要:
A kit and a method of DNA sequencing including digesting a sample DNA with a restriction enzyme to obtain a DNA fragment; introducing an oligonucleotide having a definite base sequence into the DNA fragment at the 3' terminus; and performing a complementary strand extension reaction, using a labeled primer. The complementary strand extension reaction uses as a template, a single strand of the DNA fragment having the oligonucleotide introduced thereinto, to obtain a labeled extended primer having a base sequence complementary to the single strand of the DNA fragment. Next a sequencing reaction with the labeled primer and using the single strand of the DNA fragment having the oligonucleotide introduced thereinto, is performed with the extended labeled primer, using as a template, a part of the single strand of the sample DNA having the base sequence of the single strand of the DNA fragment and a contiguous sequence adjacent thereto, or a single strand of the sample DNA. Finally the products of the sequencing reaction are electrophoresed to determine the base sequence of the DNA fragment and at least a part of the base sequence of the sample DNA adjacent to the base sequence of the DNA fragment.
摘要:
A method for simultaneously detecting a plurality of target polynucleotides in a sample on a single reaction chip and a method for separating a plurality of target polynucleotides are provided. On the reaction chip are arranged a plurality of independent cells for capturing different target polynucleotides. Different probes are immobilized onto the individual cells, and detect the cells where the target polynucleotides are captured, thereby analyzing the species of the captured target polynucleotides. Also, the individual cells function as electrodes to elute the captured target polynucleotides therethrough, thereby separating a plurality of the target polynucleotides.