Single-cell whole-environment dynamic regulation chip

A single-cell and chip technology, applied in the field of biological analysis, can solve the problems of dynamic regulation of the whole environment of cells without fluid medium and extracellular matrix, and difficulty in realizing high-throughput chip integration. It achieves flexible methods, simple equipment, and extensive The effect of applying the foreground

Inactive Publication Date: 2011-12-14
CHONGQING TECH & BUSINESS UNIV
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Problems solved by technology

In addition, MAT, AFM and other technologies require sophisticated and complex equipment and devices, which are difficult to achieve integration with high-throughput chips, and there are insurmountable obstacles in th

Method used

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  • Single-cell whole-environment dynamic regulation chip
  • Single-cell whole-environment dynamic regulation chip
  • Single-cell whole-environment dynamic regulation chip

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Experimental program
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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the drawings, but the present invention is not limited to the embodiments shown in the drawings.

[0020] A chip for the dynamic regulation of the whole environment mechanics of a single cell such as figure 1As shown, it is composed of a microfluidic layer 10 , a piezoelectric vibration layer 20 and at least one single cell pool 30 . The chip is in the shape of a flat sheet, and its one-sided shape can be circular, elliptical, or n-sided with the number of sides n??3.

[0021] The above-mentioned microfluidic layer 10 is as figure 2 Shown are thin sheets of rigid, insulating, and biocompatible materials, such as inorganic or organic materials such as quartz, glass, polyacrylamide, and polyacrylate. Using the usual microfabrication method, four solution inlet and outlet holes with a depth of 50-200 mm and a diameter of 50-500 mm are made on one side of the material sheet, which are cell solution...

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Abstract

The invention provides a mechanical dynamic regulation and control chip for a single cell total environment. The chip provided by the invention comprises a micro-fluid control layer, a piezoelectric vibration layer and at least one single cell pool and is characterized in that the micro-fluid control layer and the piezoelectric vibration layer are integrated on the chip; the mechanical dynamic regulation and control of a fluid medium with single cells is carried out by regulating the direction and flow velocity of the micro-fluid of the chip; and simultaneously, the mechanical dynamic regulation and control of an extracellular matrix with single cells is carried out by regulating the amplitude and frequency of the piezoelectric vibration of the chip, thereby simultaneously realizing the mechanical dynamic regulation and control of all environments with single cells on the chip. The chip provided by the invention aims to solve the problem of difficulty in dynamic regulation and controlof an environment in a single cell mechanics technique, does not have mechanical dynamic regulation dead zones, has the characteristics of simplicity, convenience and flexibility in operation and high flux, can be used for discovering the biomechanics characteristics of cells in time and space and is suitable for being applied in wide fields such as biomechanics, tissue engineering, drug screening, clinical medicine and the like.

Description

technical field [0001] The invention relates to the technical field of biological analysis, and is a chip for dynamically regulating the mechanical environment of cells. Background technique [0002] As the basic unit of life, cells constantly interact with their environment (including fluid medium and extracellular matrix). It has an important impact on life activities such as death and migration. On the other hand, an important manifestation of cell activities is that cells produce mechanical changes, which further regulate cell activities. Therefore, how cells sense the mechanical stimuli of the environment and convert them into mechanical signals and regulate cell activities, that is, cell mechanics, constitutes one of the basic issues of life activities. As a supporting platform, the development of cell mechanics technology promotes the deepening of understanding of this fundamental issue and plays an increasingly important role in improving human health. [0003] Th...

Claims

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Application Information

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IPC IPC(8): G01N33/487
Inventor 韦晓兰王竹青单振秀王崇均
Owner CHONGQING TECH & BUSINESS UNIV
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