Motion controlling mechanism, liquid discharging nozzle, microdroplet generating device and method, liquid driving mechanism and method, microdroplet generating method, and surface processing method of liquid discharging nozzle
AssigneeSniper (Suzhou) Life Technology Co.
InventorGuang-Ji Sheng
Life of this patent
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Abstract
Disclosed is a liquid discharging nozzle, including a needle stem having a hollow chamber and an outlet end located at one end of the needle stem, an angle between a normal line of an end surface of the outlet end of the liquid discharging nozzle and an extension direction of the needle stem is equal to or smaller than 90°. Further disclosed are a motion controlling mechanism, a microdroplet generating device and method, a liquid driving mechanism and method, a microdroplet generating method, and a surface processing method of a liquid discharging nozzle.
Claims19
A microdroplet generating method, comprising steps of:
- S201, providing a liquid discharging nozzle having an outlet end and storing a first liquid therein and providing a microdroplet container storing a second liquid therein and having an opening, wherein the first liquid and the second liquid are any two immiscible liquids or any two liquids having an interfacial reaction therebetween;
- S202, inserting the outlet end of the liquid discharging nozzle below the liquid surface of the second liquid through the opening of the microdroplet container;
- S203, controlling the outlet end of the liquid discharging nozzle to move below the liquid surface of the second liquid, while discharging the first liquid from the outlet end of the liquid discharging nozzle, so that the first liquid discharged from the outlet end of the liquid discharging nozzle forms a droplet attached to the outlet end of the liquid discharging nozzle, wherein the outlet end of the liquid discharging nozzle is instantaneously accelerated to such a value of instantaneous acceleration that the droplet is instantaneously detached from the outlet end of the liquid discharging nozzle, thereby forming a microdroplet below the liquid surface of the second liquid.
A microdroplet generating method, comprising steps of:
- S211, providing a liquid discharging nozzle having an outlet end and storing a first liquid therein and providing a microdroplet container storing a second liquid therein and having an opening, wherein the first liquid and the second liquid are any two immiscible liquids or any two liquids having an interfacial reaction therebetween;
- S212, inserting the outlet end of the liquid discharging nozzle below a liquid surface of the second liquid through the opening of the microdroplet container;
- S213, controlling the outlet end of the liquid discharging nozzle to move at a periodically changed speed below the liquid surface of the second liquid, and in a first half period and a second half period of a speed variation, the speed of the outlet end of the liquid discharging nozzle changing monotonously, the first liquid being discharged from the outlet end of the liquid discharging nozzle, the first liquid discharged from the outlet end of the liquid discharging nozzle being formed into a droplet attached to the outlet end of the liquid discharging nozzle, the droplet being detached from the outlet end of the discharging nozzle during the moving of the outlet end of the liquid discharging nozzle, thereby forming a microdroplet below the liquid surface of the second liquid.
Dependencies are inferred from the claim text.