22.
    发明专利
    未知

    公开(公告)号:DE3642551A1

    公开(公告)日:1987-07-09

    申请号:DE3642551

    申请日:1986-12-12

    Abstract: A gel used for electrophoresis is cast in a gel enclosure in which the gel will ultimately be used during the electrophoresis, by a novel method and using novel apparatus which provide for quick assembly and avoidance of leaks. The method and apparatus involve a wettable, preferably porous, membrane such as filter paper, which is thoroughly wetted with gel forming solution, then placed over the bottom opening of the gel enclosure and held in place until the gel on the membrane sets. Sealing of any cracks, gaps or irregularities along the rim of the opening is thereby achieved by the capillary action of the gel forming solution. The enclosure itself is then filled with gel forming solution. Once the latter has set, the membrane is removed.

    METHOD AND APPARATUS FOR DRYING GEL SLABS

    公开(公告)号:GB2164735A

    公开(公告)日:1986-03-26

    申请号:GB8514185

    申请日:1985-06-05

    Abstract: An apparatus for drying gel slabs supplies heat to a horizontal gel slab from a heating plate above the slab, while drawing a vacuum beneath. The heating plate is weighted and has a flat lower surface at least coextensive with the gel slab. The slab itself is placed on a porous support pad in a vacuum chamber enclosed at the top with a flexible cover which clings to the gel and seals to the perimeter of the chamber when a vacuum is applied from below. The heating plate rests on top of the cover under gravitational force, providing even heating across the entire expanse of the gel slab and for the entire duration of the drying process, resulting in a continuous and uniform vapor flow downward from the gel slab, a minimization of internal stresses, and reduced susceptibility of the gel to cracking.

    Droplet-based assay system
    25.
    发明专利

    公开(公告)号:GB2504241B8

    公开(公告)日:2014-10-15

    申请号:GB201319376

    申请日:2009-09-23

    Abstract: A system for sample analysis, comprising:at least one droplet generator that forms a plurality of emulsions including droplets of partitioned samples, the samples being prepared as reaction mixtures for amplification of a nucleic acid target;a plate defining an array of cavities to hold the emulsions;a heating and cooling device to heat the emulsions disposed in the cavities to induce nucleic acid amplification in droplets of the emulsions;a detection assembly to detect signals from intact droplets of the emulsions;a fluid transfer device including an autosampler configured to transfer droplets from each of the cavities to a detection site of the detection assembly; anda controller in communication with the detection assembly and programmed to estimate a presence, if any, of the nucleic acid target in the samples based on signals detected from the intact droplets.

    Droplet-based assay system
    26.
    发明专利

    公开(公告)号:GB2504241A8

    公开(公告)日:2014-10-15

    申请号:GB201319376

    申请日:2009-09-23

    Abstract: A system for sample analysis, comprising:at least one droplet generator that forms a plurality of emulsions including droplets of partitioned samples, the samples being prepared as reaction mixtures for amplification of a nucleic acid target;a plate defining an array of cavities to hold the emulsions;a heating and cooling device to heat the emulsions disposed in the cavities to induce nucleic acid amplification in droplets of the emulsions;a detection assembly to detect signals from intact droplets of the emulsions;a fluid transfer device including an autosampler configured to transfer droplets from each of the cavities to a detection site of the detection assembly; anda controller in communication with the detection assembly and programmed to estimate a presence, if any, of the nucleic acid target in the samples based on signals detected from the intact droplets.

    Droplet-Based assay system
    27.
    发明专利

    公开(公告)号:GB2502409A8

    公开(公告)日:2014-10-15

    申请号:GB201303939

    申请日:2009-09-23

    Abstract: A system for sample analysis, comprising:at least one droplet generator that forms a plurality of emulsions including droplets of partitioned samples, the samples being prepared as reaction mixtures for amplification of a nucleic acid target;a plate defining an array of cavities to hold the emulsions;a heating and cooling device to heat the emulsions disposed in the cavities to induce nucleic acid amplification in droplets of the emulsions;a detection assembly to detect signals from intact droplets of the emulsions;a fluid transfer device including an autosampler configured to transfer droplets from each of the cavities to a detection site of the detection assembly; anda controller in communication with the detection assembly and programmed to estimate a presence, if any, of the nucleic acid target in the samples based on signals detected from the intact droplets.

    COMBINED BUFFER RESERVOIR AND SAMPLE INJECTION BLOCK FOR CAPILLARY ELECTROPHORESIS

    公开(公告)号:GB2257160A

    公开(公告)日:1993-01-06

    申请号:GB9214064

    申请日:1992-07-01

    Inventor: BURD SAMUEL

    Abstract: The block comprises three recesses serving as a reservoir 60 for buffer solution. an injection port 61 for introduction of fluids by a syringe, and outlet 62 (see Fig 3b not shown) which communicates with the capillary tube, the recesses being connected by ducts which meet at a common junction 66 inside the block, and the duct communicating the reservoir 60 with the junction being opened or closed by a valve eg. by a valve with a stem having a conical tip which mates with conical portion 67 of the duct serving as a valve seat. The buffer reservoir 60 communicates with overflow passage 69 separated from the reservoir by wall 70 to permit escape of excess liquid (Fig. 3d not shown). The block permits filling of the capillary, injection of the sample into the capillary, changing of the solution in the buffer reservoir, and flushing out of the entire block without disconnecting the block from the capillary cartridge.

    Apparatus for capillary electrophoresis

    公开(公告)号:GB2226572A

    公开(公告)日:1990-07-04

    申请号:GB8926264

    申请日:1989-11-21

    Inventor: BURD SAMUEL

    Abstract: A capillary tube for use in high performance capillary electrophoresis is enclosed in a cartridge of generally planar configuration, formed by two flat plates joined together along raised edges to define a shallow enclosed chamber to retain the looped capillary tube, the plates having aligned windows between which a segment of the capillary tube passes, thereby forming a light path for zone detection. The termini of the capillary are embedded in fittings extending from the exterior of the cartridge, which mate with complementary fittings on inlet and outlet blocks which contain buffer reservoirs with controlled hydrostatic heads. The inlet block is specially equipped with ducts and fittings to permit filling of the capillary, injection of the sample into the capillary, changing of the solution in the buffer reservoir, and flushing out of the entire block without disconnecting the block from the capillary cartridge. By securing the cartridge containing the capillary tube into its holder, the capillary tube is correctly aligned in the detector light path.

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