Self-driven digital micro-chute based on friction generator

A technology of triboelectric generator and digital microflow, which is applied in laboratory containers, laboratory utensils, chemical instruments and methods, etc., can solve the problems of high cost, unsuitable for large-scale production, etc. Effect

Active Publication Date: 2014-04-30
PEKING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the digital microfluidic system relies on piezoelectric materials to generate voltage, which is costly and not suitable for mass production

Method used

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  • Self-driven digital micro-chute based on friction generator
  • Self-driven digital micro-chute based on friction generator
  • Self-driven digital micro-chute based on friction generator

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Experimental program
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Embodiment

[0025] like Figure 1 to Figure 2 As shown, the self-driven digital microchannel based on the friction generator of the present invention is composed of a digital microchannel and a friction generator, wherein the digital microchannel part is composed of a lower support material 1, a lower driving electrode 2, a dielectric layer 3, The lower hydrophobic layer 4, the droplet 5, the upper hydrophobic layer 6, the upper driving electrode 7, and the upper support material 8; the friction generator part is composed of the lower friction electrode 9, the lower friction material 10, the upper friction material 11, and the upper friction electrode 12 . Among them, the droplet 5 is located between the upper hydrophobic layer 6 and the lower hydrophobic layer 4, the dielectric layer 3, the lower driving electrode 2 and the lower support material 1 are located below the lower hydrophobic layer 4, and the upper driving electrode 7 is sequentially above the upper hydrophobic layer 6. And ...

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Abstract

The invention discloses a self-driven digital micro-chute based on a friction generator. The self-driven digital micro-chute comprises a digital micro-chute and the friction generator, wherein the digital micro-chute part comprises a lower supply material (1), lower driving electrodes (2), a dielectric layer (3), a lower hydrophobic layer (4), a liquid drop (5), an upper hydrophobic layer (6), an upper driving electrode (7) and an upper support material (8); a friction generator part comprises a lower friction electrode (9), a lower friction material (10), an upper friction material (11) and an upper friction electrode (12). According to the self-driven digital micro-chute based on the friction generator, functions of a conventional digital micro-chute can be finished without an additional power supply, a self-driving function is realized, a specific piezoelectric material is not required, and the self-driven digital micro-chute is easy to prepare, is low in cost and can be produced in batch.

Description

technical field [0001] The invention relates to the fields of micro-energy sources and micro-channels, in particular to a self-driven digital micro-channel based on a friction generator. Background technique [0002] With the emergence and development of microfluidic technology, this technology has been applied in more and more biological and chemical experiments. The use of microchannel technology for biological and chemical experiments has the advantages of high sensitivity, small size, and saving raw materials. Based on the principle of electrowetting, liquids can be moved, separated, merged and other operations in the micro-channel, so as to prepare a digital micro-channel controlled by electrical signals, and realize large-scale and automated biological and chemical experiments. In traditional digital microfluidic systems, effective electrical signals must be provided to control the movement of liquids in microfluidic channels, making portability an urgent problem to b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01L3/00
Inventor 张海霞韩梦迪张晓升孟博
Owner PEKING UNIV
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