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Microfilter, manufacturing method and microfiltration unit

A microfilter, microfiltration technology, applied in chemical instruments and methods, ultrafiltration, manufacturing tools, etc., can solve problems such as the limitation of micropore size range

Pending Publication Date: 2021-04-02
GENERAL BIOLOGICALS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Relatively speaking, the laser drilling method is suitable for large quantities of materials with good uniformity, but the size range of the microholes is limited by the diameter of the laser spot

Method used

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  • Microfilter, manufacturing method and microfiltration unit
  • Microfilter, manufacturing method and microfiltration unit
  • Microfilter, manufacturing method and microfiltration unit

Examples

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Embodiment Construction

[0037] The invention may be embodied in many different forms and should not be construed as limited to the examples presented herein. The described examples do not limit the scope of the invention as described in the claims.

[0038] Such as figure 1 As shown, the microfilter of the present invention comprises a microporous membrane composed of a transparent polymer without epoxy chains. Therefore, the microporous membrane is a non-epoxy based microporous membrane, and the material of the non-epoxy based microporous membrane is a transparent plastic material. figure 1 A shows the structure of a microfilter with a 13 mm diameter microporous membrane and a 9 mm diameter filter area. The surface of the microporous membrane of the microfilter is patterned and divided into predetermined areas, such as 16 areas (such as figure 1 A) to locate and rapidly count isolated objects of interest. In addition, this microporous membrane can be further coated with membranes to facilitate t...

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Abstract

A microfilter, a manufacturing method thereof, and a microfiltration unit for holding the microfilter are provided. The microfilter has: a non-epoxy based microfilm; and a plurality of microholes provided on the surface of the non-epoxy based microfilm and penetrating therethrough via UV laser ablation, wherein the surface of the non-epoxy based microfilm is patterned into predetermined sections for locating isolated targets and quick enumeration.

Description

technical field [0001] The invention relates to a microfilter, which is characterized in that the microfilter is a microporous membrane (microfilm), and the microporous membrane is made of non-epoxy-based materials and the microporous membrane has a plurality of holes to form a patterned array of microholes. Background technique [0002] The microfilter structure may be a solid membrane with a microporous structure to make it a semi-permeable medium. This microfilter structure has been widely used to achieve the separation of tiny objects in complex samples. [0003] Depending on the field of application, a wide variety of materials are used to manufacture microfilters such as polymers, metals or composites. For example, epoxy based microfilms have been widely used in the separation of biomolecules. Steel based microfilters are common in inkjet nozzles. Epoxy based microfilters are easily fabricated using photolithographic methods. However, epoxy-based films are brittle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D61/18B01D67/00G01N1/34
CPCB01D61/18B01D61/147B01D67/0002G01N1/34B01D2313/041B01D2313/13B01D69/02B01D2325/08B01D67/0034B01D63/087B01D2313/02B01L3/5635B01L2200/026B01D2325/0212B01D2325/0214B23K26/389B01D63/081B01D67/0032B01D2313/06B01D2313/10B01D2313/243B23K26/402
Inventor 潘卡杰·库马尔·乔希刘原智汪为豪林孟德林宗庆
Owner GENERAL BIOLOGICALS CORP
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