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Micro-droplet generation method

A technology of micro-droplets and droplets, which is applied in the field of measuring and distributing micro-liquids, and can solve the problems of instability in the generation process of micro-droplets

Active Publication Date: 2019-07-30
思纳福(苏州)生命科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on this, it is necessary to provide a micro-droplet generation method with stable micro-droplet generation process in order to solve the problem of unstable micro-droplet generation process in the injection / jet method of the spit nozzle.

Method used

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Embodiment Construction

[0038] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail through the following embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0039] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of i...

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Abstract

The invention provides a micro-droplet generation method. An outlet end of a liquid spit pipe head conducts instantaneous acceleration motion under the liquid surface of a second solution, a first solution is discharged out of the outlet end of the liquid spit pipe head, the first solution discharged from the outlet end is used for forming droplets attached to the outlet end of the liquid spit pipe head, and the droplets are separated from the outlet end of the liquid spit pipe head in the movement process at the outlet end of the liquid spit pipe head and form the micro-droplets under the liquid surface of the second solution. The acceleration value of the outlet end of the liquid spit pipe head during instantaneous acceleration is large, the adhesive force between the droplets of the outlet end of the liquid spit pipe head and the outlet end of the liquid spit pipe head is not enough to drive the droplets and the outlet end of the liquid spit pipe head to synchronously accelerate, and the droplets attached to the outlet end of the liquid spit pipe head are separated from the outlet end of the liquid spit pipe head and form the micro-droplets under the liquid surface of the secondsolution. According to the micro-droplet generation method, the disturbance of the outlet end of the liquid spit pipe head during motion to the second solution is reduced, and the stability of the micro-droplet generation process is guaranteed.

Description

technical field [0001] The invention relates to the technical field of measuring and distributing micro-liquids, in particular to a method for generating micro-droplets. Background technique [0002] At present, there is a wide demand for precise operation of trace liquids in medical clinical testing, nanomaterial preparation, food and environmental testing, biochemical analysis and other application fields. One of the core technologies of micro-liquid manipulation is to further divide microliter-level liquids into micro-reaction systems with nanoliter or even picoliter volumes. A main technical branch of micro-reaction system generation is the generation of emulsified micro-droplets. [0003] In recent years, a variety of microdroplet generation techniques have been reported in the literature, such as membrane emulsification, spray emulsification, microfluidic chip method, spit tip injection / jet method, etc. Among them, the injection / spraying method of spit nozzle, as the...

Claims

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Application Information

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IPC IPC(8): B01L3/02
CPCB01L3/0268B01L3/0293B01L2400/021
Inventor 盛广济
Owner 思纳福(苏州)生命科技有限公司
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