Optical microfluidic composite pipe channel

Abstract

The invention discloses an optical microfluidic composite pipe channel. The optical microfluidic composite pipe channel comprises a transparent flexible micro-pipe. The outer surface of the micro-pipeis provided with a photoresponse coating. The photoresponse coating has the photothermal effect and the photo-induced expansion effect under the effect of light within a specific wavelength range. The micro-pipe is provided with at least one liquid flow-in port and a liquid flow-out port. Each of the liquid flow-in port and the liquid flow-out port is provided with a sealing valve. The provided optical microfluidic composite pipe channel does not pollute transmitted liquid, is cheap in coating, energy-saving and efficient, and capable of combining the microfluidic effects of photomechanical drive and photothermal drive, and flexibly realizing the coarse adjustment and the fine adjustment of a microfluidic position.

Description

technical field [0001] The invention relates to a flexible channel for optically controlled fluid transmission, which belongs to the field of optically controlled fluid material technology and related devices. Background technique [0002] Microfluidic technology is a technology that uses microtubes to control tiny fluids. It is suitable for the miniaturization of biochemical experiments, so it is also called lab-on-a-chip. Because of its remarkable efficiency, it is widely used in biomedicine, organic synthesis, chemical analysis and microreactors. The field has a good application prospect. At present, the main application principles are mechanical drive and non-mechanical drive. Mechanical drives mainly include pneumatic drives, piezoelectric drives, and centrifugal drives. The limitation is that the control accuracy cannot meet the higher requirements. Non-mechanical drives mainly include electroosmotic drive, thermal gas drive and light harvesting drive. Among them, el...

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problems of contact pollution, high cost, cumbersome processing, etc., the optical-microfluidic composite tubular channel provided by the present invention includes a transparent and flexible micro-pipe, which is characterized in that the outer surface of the micro-pipe has a photoresponsive coating, The photoresponsive coating has a photothermal effect and a photoexpansion effect under the action of light in a specific wavelength range; the micropipe has at least one liquid inlet and one liquid outlet, and has a seal at the liquid inlet and the liquid outlet respectively. valve

Images