LIQUID HANDLING, IN PARTICULAR METERING

A microfluidic liquid handling device is configured for rotation about an axis of rotation to drive liquid flow within the device. The device can include an upstream liquid handling structure, a metering structure and an overflow region. The metering structure is configured to receive liquid from th...

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Bibliographic Details
Main Authors SANTOS, David Pena De Sousa, PEREIRA, F bio Miguel Rolo, BARREIROS, Miguel Joao Marques
Format Patent
LanguageEnglish
French
German
Published 08.04.2020
Subjects
CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
TRANSPORTING
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Summary:A microfluidic liquid handling device is configured for rotation about an axis of rotation to drive liquid flow within the device. The device can include an upstream liquid handling structure, a metering structure and an overflow region. The metering structure is configured to receive liquid from the upstream liquid handling structure. The overflow region is separated from the metering structure by a wall. The wall has a first surface portion on the side of the overflow region which has an extent in a direction perpendicular to the direction of action of the centrifugal force, in a substantially tangential or circumferential direction, relative to the axis of rotation. The first surface portion faces radially outwards. Advantageously, the structure of the wall facilitates accurate metering.
Bibliography:Application Number: EP20180728625