Liquid drop or liquid flow sorting control system and control method thereof

Abstract

The invention relates to a liquid drop or liquid flow sorting control system comprising a master control portion, a rectification transformation portion, an inversion portion, a signal feedback portion, and ports. The inversion portion, the signal feedback portion, and the ports are respectively and electrically connected with the master control portion; the rectification transformation portion, the inversion portion, and the signal feedback portion are respectively and electrically connected with ports directly or indirectly by a filtering circuit; the rectification transformation portion and the inversion portion are connected electrically and directly or indirectly by the filtering circuit; the rectification transformation portion and the master control portion can be electrically connected or connected in a non-electric mode. Controlled objects include a micro-fluidic chip and other instruments, equipment, devices, chips or components that can accommodate liquid drops or liquid flows. According to the sorting control system, on the basis of controlling on / off of an electric signal of an electrode of an object, real-time rapid controlling of the liquid drop or liquid flow in the controlled object is realized.

Description

technical field [0001] The invention relates to a sorting control system of liquid droplets or liquid streams. Background technique [0002] Today, many fields in the national economy, such as drug research and development, medical testing, food development, biocatalysis, chemical material purification, DNA sequencing, etc., all involve the screening of samples, and the efficiency of this link directly affects the entire product development cycle and Production cycle. With the advancement of science and technology and the development of the times, sample preparation, screening, reaction and related experiments in many fields can be realized on a chip of a few square centimeters or even smaller. This is one of the seven technologies called "changing the world". One of the most advanced microfluidic technology, microfluidic technology has the ability to condense a biological or chemical laboratory into a chip of a few square centimeters or even smaller. [0003] Today, tradi...

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Problems solved by technology

[0003] Today, traditional methods are still used in sample screening in many R&D and production fields, including the use of liquid pipettes, liquid pipetting guns, kits and other tools, which are inefficient and wasteful, resulting in high costs related to reagents, manpower, and management. No less, many developed countries have used robot control, which has improved the screening efficiency to a certain extent, but the high additional cost has caused a bottleneck in its promotion, and the waste of samples in the screening process has not been significantly reduced, and the screening efficiency is still there. a lot of room for improvement

[0004] At present, microfluidic technology is still in the research and development stage, and its application is relatively limited. There are many technical problems waiting to be solved one by one by researchers in the field of microfluidics around the world. There are still some existing technical solutions that need to be perfected and improved.

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