摘要:
The method for controlling the downstream progress of a liquid in a microfluid component, comprising, for example, a number of microchannels, each having a number of successive reaction or detection zones and a number of passive valves, controls the progress of the liquid in the microchannels by controlling the increase of pressure differential between the upstream and downstream end of the component. The method controls the increase in pressure differential in a discontinuous manner in the form of release pulses (Pd), such as to particularly synchronise the passage through the corresponding passive valves in the microchannels. The pressure difference is reduced to a zero value between two successive release pulses (Pd).
摘要:
The invention relates to a method of bonding microstructured substrates, which is intended, for example, for the production of micro-fluidic components. The inventive method of bonding a microstructured substrate (2) comprising coplanar upper flat zones (6) and hollows therebetween comprises the following steps: a grid (10) is disposed on top of the substrate; the grid is coated with a glue (12) using a tool (16) which, by pressing on said grid, brings same locally into contact with the aforementioned zones, such as to deposit a film (20) of droplets of glue thereon; and the grid is removed. In addition, the coplanar upper flat zones (6) on which the film of glue droplets has been deposited is subjected to a treatment in order to adapt the wettability of said zones to the glue.
摘要:
The invention mainly relates to a device (1) for collecting a sample of liquid (L) by capillary action, which comprises a liquid flow channel (2) defined by two inner walls (3, 4) of the device (1), between which a channel base (5) extends, wherein the distance (D) separating the two inner walls (3, 4) decreases in the direction of the channel base (5), the channel (2) extending between a first collection end (6), which opens to the outside (E) of the device (1) and is capable of receiving the liquid (L), and a second end (7), such as to enable flow of the liquid (L), by capillary action, along the canal base (5) from the first end (6) to the second end (7), the channel (2) comprising, at the second end (7), a blocking means (9, 17) capable of blocking the flow of liquid (L) in the channel (2), from the first end (6) to the second end (7).
摘要:
The invention relates to an interconnection device of a card (300), the card comprising at least one first fluid channel (302), emerging from a connection face (306), the latter being parallel to a bearing face (308), said interconnection device comprising: • a first surface (14), intended to receive the bearing face (308) of the card (300), • a second surface (42) parallel to the first surface (14), from which a second fluid channel (44) emerges, • card holding means (20, 30, 60), intended to hold the connection face 306 of the card bearing against the second surface 42 of the device, so that the first fluid channel 302 is in fluid connection with the second fluid channel 44.