CARTRIDGE, ELECTROWETTING SAMPLE PROCESSING SYSTEM AND BEAD MANIPULATION METHOD

    公开(公告)号:US20230256444A1

    公开(公告)日:2023-08-17

    申请号:US18138911

    申请日:2023-04-25

    Abstract: A cartridge, in particular a disposable cartridge, for use in an electrowetting sample processing system. The cartridge contains an internal gap with at least one hydrophobic surface for enabling an electrowetting induced movement of a microfluidic droplet that has magnetic beads and further has a bead accumulation zone, into which the microfluidic droplet is transferable by electrowetting force and the magnetic beads are exposable to a magnetic force of a bead manipulation magnet. The internal gap has a bead extraction opening adjacent to the bead accumulation zone. The bead extraction opening provides a passage from the gap to an exterior space of the cartridge and is configured to removably receive the bead manipulation magnet for enabling an extraction of the magnetic beads from the microfluidic droplet by a removal of the bead manipulation magnet.

    Cartridge and electrowetting sample processing system with delivery zone

    公开(公告)号:US11951482B2

    公开(公告)日:2024-04-09

    申请号:US17559362

    申请日:2021-12-22

    CPC classification number: B01L3/502792 B01L2400/0427

    Abstract: A cartridge, in particular a disposable cartridge, for use in an electrowetting sample processing system. The cartridge has a liquid input port for introducing an input liquid into an internal gap of the cartridge, the input liquid providing for at least one droplet, directly or via a liquid separation process within the internal gap, and the internal gap having at least one hydrophobic surface, at least one processing zone for processing samples located in the processing zone, and a delivery zone for delivering the at least one droplet from the liquid input port to the at least one processing zone. The delivery zone is configured to provide a repeating pattern of interacting electrowetting force for simultaneously transporting the at least one droplet within the delivery zone.

    Cartridge, electrowetting sample processing system and bead manipulation method

    公开(公告)号:US11666914B2

    公开(公告)日:2023-06-06

    申请号:US15975283

    申请日:2018-05-09

    Abstract: A cartridge, in particular a disposable cartridge, for use in an electrowetting sample processing system. The cartridge contains an internal gap with at least one hydrophobic surface for enabling an electrowetting induced movement of a microfluidic droplet that has magnetic beads and further has a bead accumulation zone, into which the microfluidic droplet is transferable by electrowetting force and the magnetic beads are exposable to a magnetic force of a bead manipulation magnet. The internal gap has a bead extraction opening adjacent to the bead accumulation zone. The bead extraction opening provides a passage from the gap to an exterior space of the cartridge and is configured to removably receive the bead manipulation magnet for enabling an extraction of the magnetic beads from the microfluidic droplet by a removal of the bead manipulation magnet.

    CARTRIDGE AND ELECTROWETTING SAMPLE PROCESSING SYSTEM WITH DELIVERY ZONE

    公开(公告)号:US20190329258A1

    公开(公告)日:2019-10-31

    申请号:US15962892

    申请日:2018-04-25

    Abstract: A cartridge, in particular a disposable cartridge, for use in an electrowetting sample processing system. The cartridge has a liquid input port for introducing an input liquid into an internal gap of the cartridge, the input liquid providing for at least one droplet, directly or via a liquid separation process within the internal gap, and the internal gap having at least one hydrophobic surface, at least one processing zone for processing samples located in the processing zone, and a delivery zone for delivering the at least one droplet from the liquid input port to the at least one processing zone. The delivery zone is configured to provide a repeating pattern of interacting electrowetting force for simultaneously transporting the at least one droplet within the delivery zone.

    Cartridge, electrowetting sample processing system and bead manipulation method

    公开(公告)号:US12115532B2

    公开(公告)日:2024-10-15

    申请号:US18138911

    申请日:2023-04-25

    Abstract: A cartridge, in particular a disposable cartridge, for use in an electrowetting sample processing system. The cartridge contains an internal gap with at least one hydrophobic surface for enabling an electrowetting induced movement of a microfluidic droplet that has magnetic beads and further has a bead accumulation zone, into which the microfluidic droplet is transferable by electrowetting force and the magnetic beads are exposable to a magnetic force of a bead manipulation magnet. The internal gap has a bead extraction opening adjacent to the bead accumulation zone. The bead extraction opening provides a passage from the gap to an exterior space of the cartridge and is configured to removably receive the bead manipulation magnet for enabling an extraction of the magnetic beads from the microfluidic droplet by a removal of the bead manipulation magnet.

    Cartridge and Electrowetting Sample Processing System with Delivery Zone

    公开(公告)号:US20220111388A1

    公开(公告)日:2022-04-14

    申请号:US17559362

    申请日:2021-12-22

    Abstract: A cartridge, in particular a disposable cartridge, for use in an electrowetting sample processing system. The cartridge has a liquid input port for introducing an input liquid into an internal gap of the cartridge, the input liquid providing for at least one droplet, directly or via a liquid separation process within the internal gap, and the internal gap having at least one hydrophobic surface, at least one processing zone for processing samples located in the processing zone, and a delivery zone for delivering the at least one droplet from the liquid input port to the at least one processing zone. The delivery zone is configured to provide a repeating pattern of interacting electrowetting force for simultaneously transporting the at least one droplet within the delivery zone.

    Method of treating a sample
    9.
    发明授权

    公开(公告)号:US12290804B2

    公开(公告)日:2025-05-06

    申请号:US17294853

    申请日:2018-12-20

    Abstract: A method of treating an isolated area of a sample with a liquid is disclosed. The method has the steps of generating an isolated area of a sample by a first fluid reservoir where the first fluid reservoir enclosing a distal end of a second fluid reservoir and the isolated area of the sample being sealed towards the remaining area of the sample, bringing the isolated area of the sample into fluid connection with the second fluid reservoir, dispensing a fluid from the second fluid reservoir into the first fluid reservoir thereby generating a fluid flow on the sample at the isolated area in a first direction, and aspirating the fluid from the first fluid reservoir into the second fluid reservoir thereby generating a fluid flow on the sample at the isolated area in a second direction.

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