Title:
MICROFLUIDIC CHIP, DROPLET GENERATION DEVICE, AND METHOD FOR CONTROLLING DROPLET GENERATION SIZE
Document Type and Number:
WIPO Patent Application WO/2023/216222
Kind Code:
A1
Abstract:
The present disclosure provides a microfluidic chip, a droplet generation device, and a method for controlling droplet generation size. The microfluidic chip comprises: a substrate and a first flow channel, a second flow channel, and a third flow channel that are distributed on the substrate. The first flow channel, the second flow channel, and the third flow channel intersect to form a confluence area. The first flow channel is configured to allow a dispersed phase fluid to flow in from the first flow channel; the second flow channel is configured to allow a continuous phase fluid to flow in from the second flow channel; and the dispersed phase fluid and the continuous phase fluid form liquid drops in the third flow channel. The dispersed phase fluid flows in a first direction in the first flow channel, the orthographic projection of the first flow channel on the substrate has a constant first width in a second direction, and the second direction and the first direction are perpendicular to one another in the plane in which the substrate is located. The formed liquid drops flow in a third direction in the third flow channel. The third flow channel comprises a variable volume part extending in the third direction, and the orthographic projection of the variable volume part on the substrate has an adjustable width in a fourth direction. The fourth direction and the third direction are perpendicular to one another in the plane in which the substrate is located, and liquid drops of different sizes can be generated by controlling the ratio of the adjustable width to the first width.
Inventors:
MU YUNQING (CN)
DING DING (CN)
DING DING (CN)
Application Number:
PCT/CN2022/092641
Publication Date:
November 16, 2023
Filing Date:
May 13, 2022
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
International Classes:
B01L3/00
Foreign References:
| CN112657565A | 2021-04-16 | |||
| US20140161685A1 | 2014-06-12 | |||
| CN104857576A | 2015-08-26 | |||
| CN104888875A | 2015-09-09 |
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (CN)
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