01-09-2022 дата публикации
Номер: US20220274072A1
The present invention generally relates to systems and methods for the control of fluids and, in some cases, to systems and methods for flowing a fluid into and/or out of other fluids. As examples, fluid may be injected into a droplet contained within a fluidic channel, or a fluid may be injected into a fluidic channel to create a droplet. In some embodiments, electrodes may be used to apply an electric field to one or more fluidic channels, e.g., proximate an intersection of at least two fluidic channels. For instance, a first fluid may be urged into and/or out of a second fluid, facilitated by the electric field. The electric field, in some cases, may disrupt an interface between a first fluid and at least one other fluid. Properties such as the volume, flow rate, etc. of a first fluid being urged into and/or out of a second fluid can be controlled by controlling various properties of the fluid and/or a fluidic droplet, for example curvature of the fluidic droplet, and/or controlling the applied electric field. 135-. (canceled)36. A method , comprising:providing a microfluidic system comprising a first microfluidic channel and a second microfluidic channel contacting the first microfluidic channel at an intersection, wherein the microfluidic system further comprises first and second electrodes positioned to create an electric field within the intersection;providing a first fluidic droplet in the first microfluidic channel and a second fluid in the second microfluidic channel, wherein the first fluidic droplet and the second fluid contact each other forming a fluidic interface at least partially within the intersection andflowing a predetermined volume of the second fluid into the first fluidic droplet by applying a voltage to the first and second electrodes, wherein the volume of the second fluid flowing into the first fluidic droplet is partially controlled by controlling the voltage applied to the first and second electrodes.37. The method of claim 36 , further ...
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