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Micro-nano fluid driving device

A driving device, micro-nano fluid technology, applied in the field of analytical chemistry, can solve the problem of long time and achieve the effect of simple and convenient assembly

Inactive Publication Date: 2014-04-09
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the method of preparing organic polymer monolithic columns is usually the thermal polymerization method. This method can prepare monolithic columns with uniform porous distribution, stable structure and high pressure resistance, but there is a significant disadvantage that it often takes a long time.

Method used

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] Such as figure 1 As shown, the structure of the micro-nano fluid driving device provided by the present invention is composed of the following parts: a pump element containing positive and negative charges, a bubble-free electrode, a high-voltage DC power supply, an external electrode and a liquid storage pool. Connect the pump element 2 with positive charge and the pump element 3 with negative charge in series, connect the non-bubble electrode 1 at the series connection part of the positive and negative pump elements and the two ends of the pump element, and finally connect the non-bubble electrode with the liquid reservoir 4 Connect, add external electrodes in the liquid storage pool, and drive the flow of liquid in the microchannel by applying high-voltage direct current to the external electrodes to form a micro "hydraulic battery", ...

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Abstract

The invention relates to a micro-nano fluid driving device and belongs to the technical field of analytical chemistry. The micro-nano fluid driving device consists of monolithic columns with positive and negative charges as pump components. One monolithic column with positive charges is serially connected with one monolithic column with negative charges to form one micro-hydraulic battery, a high-voltage direct-current power supply and two external electrodes apply voltage to push fluid in a downstream micro-nano passage to flow, electric energy is converted into hydraulic pressure so as to generate stable output pressure, and the micro-nano fluid driving device is constructed. The micro-nano fluid driving device belongs to a non-mechanical miniature pump and has no need for mechanical devices, thereby being simple and convenient to assemble and easier to be integrated on a chip. Flowing direction of fluid in the micro-passage can be adjusted by adjusting voltage direction of the external electrodes, and output pump pressure is increased by serial connection of the micro-'hydraulic batteries' under the condition of not increasing external applied voltage.

Description

technical field [0001] The invention relates to a driving device for micro-nano fluid with electroosmosis as the driving force. Prepare pump elements by photopolymerization to construct micro "hydraulic batteries", and construct micro "hydraulic battery packs" through series and parallel connection of micro "hydraulic batteries", which can be used for micro-nano analysis, specifically related to the pump elements that constitute micro "hydraulic batteries" The preparation method, condition optimization and assembly thereof belong to the technical field of analytical chemistry. Background technique [0002] In recent years, with the development of microanalytical instruments and chip technology, micropumps, which are an important part of microfluidic systems, have also received more and more attention. At present, there are many types of micropumps, which are mainly divided into two categories according to the form of liquid drive: mechanical micropumps and non-mechanical mi...

Claims

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Application Information

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IPC IPC(8): B81B7/00
Inventor 汪夏燕冯雅楠杜洋刘淑珍郭广生
Owner BEIJING UNIV OF TECH
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