摘要:
L'invention concerne également un dispositif de déplacement réversible d'au moins un volume de liquide (10) sous l'effet d'une commande électrique, comprenant des premiers moyens électriquement conducteurs (8), des deuxième moyens électriquement conducteurs (4), et des moyens pour induire un déplacement réversible d'un volume de liquide, depuis les premiers moyens vers les deuxièmes moyens électriquement conducteurs, sans contact avec ces moyens conducteurs lors du déplacement.
摘要:
L'invention concerne également un dispositif de déplacement réversible d'au moins un volume de liquide (10) sous l'effet d'une commande électrique, comprenant des premiers moyens électriquement conducteurs (8), des deuxième moyens électriquement conducteurs (4), et des moyens pour induire un déplacement réversible d'un volume de liquide, depuis les premiers moyens vers les deuxièmes moyens électriquement conducteurs, sans contact avec ces moyens conducteurs lors du déplacement.
摘要:
The invention relates to a liquid dispensing device, comprising a first and second substrate (46, 42), the first substrate (42) being provided with an opening (40) for introduction of a liquid, the second substrate (46) being provided with a number of electrodes of which one electrode (44) is called the transfer electrode, arranged at least partially opposite said opening (40), at least two electrodes (50, 52) for drop formation and one electrode (48), called the reservoir electrode, arranged between the transfer electrode (44) and the drop formation electrodes (50, 52) with a surface at least three times bigger than the surface of each drop formation electrode.
摘要:
The invention concerns a method for reacting a reagent R with a cell C, which consists in: setting the cell C on a support S comprising a substantially planar surface, in the form of an aqueous drop on said surface; covering the planar surface of the support S whereon the aqueous drop has been set containing the cell C with a separation film F, allowing through gases and preventing the aqueous drops set on the support S from evaporating, F being non-miscible with the reagent R; triggering the reaction between the reagent R and the cell C by introducing the reagent R in the aqueous drop containing the cell C. The invention also concerns a device for implementing said procedure and its applications.
摘要:
The invention concerns a device for ejecting liquid drops comprising: a shape-retaining body (28) provided with a cavity, filled with said liquid (20), and with at least an outlet (18) for the liquid; means for transmitting to the liquid sufficient impulse for ejecting at least one drop (26), said means comprising means for striking (23) a wall (30) of said body (28).
摘要:
The invention concerns a device for chemical and/or biological analysis comprising an analysis support (100) having at least an input well (102) for receiving a sample, and an output well (104) for delivering said sample, at least an internal passage passing through the support to connect the input well to the output well, and at least a reagent reservoir (120a, 120b, 120c) connected to each passage (108) between the input well and the output well, wherein the input well, the output well and the reservoir emerge on a first surface (106) of the analysis support.
摘要:
The invention concerns a microsystem, in particular for producing microswitches or microvalves, constituted on a substrate (50) and used for producing a shift between a first operating state and a second operating state by means of a heat actuated device with bi-metal switch effect. The heat-actuated device comprises a deformable element (51) connected, by opposite ends, to the substrate (50) so as to present naturally a deflection without stress relative to the substrate surface which faces it, said natural deflection determining the first operating state, the second operating state being produced by the heat-actuated device which induces, by the effect of temperature variation, a deformation of the deformable element (51) tending to reduce its deflection and submitting it to a compressive stress by buckling effect in a direction opposite to its natural deflection.
摘要:
The invention relates to a device for forming at least one circulating flow, or vortex, on the surface of a drop of liquid, comprising at least two first electrodes (4, 6) forming a plane and having edges (14, 16) facing each other, such that the line of contact (20) of a drop (2), deposited on the device and fixed relative to the latter, has a tangent making, in projection in the plane of the electrodes, an angle strictly between 0° and 90° with the mutually facing edges of the electrodes.
摘要:
The invention relates to an actuating device with a number of positions, comprising: a support (110); at least one flexible diaphragm (130) attached to the support, forming with the support, at least one chamber having a volume (V) filled with at least one first liquid in the form of one or more drops (103) and with a second liquid, the first liquid and the second liquid not being able to be mixed, and; electrical means for modulating the profile of the membrane by controlling the shape of at least one of said drops.