摘要:
PROBLEM TO BE SOLVED: To provide a nanochannel array suitable to implement macromolecular analysis of high throughput. SOLUTION: The present nanochannel array which is prepared on a surface includes a plurality of channels within a material of the surface concerned, and the channels concerned, have a trench width smaller than about 150 nm and a trench depth smaller than about 200 nm. The present nanochannel array is equipped with the surface, and at least the several channels where ceiling material surmounts over at least the several channels to close at least substantially in these channels. COPYRIGHT: (C)2009,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a nucleic acid amplification method in which any non-specific amplification is not formed even if a microchip is used and a small amount of sample can conveniently be amplified. SOLUTION: Disclosed is a nucleic acid amplification method for performing nucleic acid amplification using a microchip that comprises a specimen introduction section, a reaction section, and a channel that connects the reaction section and the specimen introduction section, wherein the method further comprises preventing a reaction solution from evaporating during the amplification reaction. Also disclosed is a microchip providing a means of preventing a reaction solution from evaporating during the amplification reaction and comprising a specimen introduction section, a reaction section, and a channel that connects the reaction section and the specimen introduction section. COPYRIGHT: (C)2008,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a high-sensitivity small biosensor chip for analyzing a fluid. SOLUTION: The on-chip integrated detector for fluid analysis comprises insulating materials 4 and 26 partially surrounding a cavity 18 containing an object of analysis, the bottom and at least a part of the side surface of the cavity 18 being formed by the insulating materials; and gate-less field effect transistors 43, 45, and 47 formed with a distance from the bottom of the cavity 18, the respective detecting faces thereof being turned to the object of analysis. COPYRIGHT: (C)2006,JPO&NCIPI
摘要:
Microfluidic embryo scaled channels (14) for handling and positioning embryos provide the opportunity to evaluate and treat embryos in improved manners. Fluid flow is used to move and position embryos within microfluidic channels and channel geometrics may be used to place embryos at specific locations. Surface properties and compliance (deformation) properties of embryos are evaluated as a predictor of viability. The microfluidic channels provide the opportunity for fine controls of pressure to conduct various evalutions at forces slightly below which damage to embryos is known to occur. Measurement of the distance and/or which embryos roll in a same pressure gradient microfluidic channel provides information, with healthy embryos traveling slower or a shorter distance as they demonstrate more stiction to channel walls. Positioned at a constriction (14a, 14b, 24, 26), health embryos also appear to deform less than unhealthy embryos that are more readily pulled into a constriction. In addition, healthy embryos appear to resume their shape better. Fluid from microfluidic channels is easily collected downstream without altering the embryo environment, providing a better opportunity for chemical analysis of fluid chemical analysis than convention manual handling and sampling techniques. Zona pellucida removal of mammalian embryos is achieved as embryos are moved through flow to a precise location where lysing agent can be washed over the embryo to achieve zona removal. Cumulus removal is realized with a series of constrictions to cut cumulus followed by fluid flows to remove cut cumulus from the embryo.