Microfluidic chip and its working method, metal ion detection device

Abstract

The invention provides a microfluidic chip, a working method thereof, and a metal ion detection device, belonging to the field of microfluidic technology. A microfluidic chip, comprising: a first substrate and a second substrate oppositely arranged; at least one detection channel is formed between the first substrate and the second substrate, and each detection channel includes: a first electrode and a second electrode oppositely arranged, The first electrode includes a plurality of spaced apart first electrode units, and the second electrode includes a plurality of spaced apart second electrode units, wherein each first electrode unit is opposite to a corresponding second electrode unit; A dielectric layer facing the first electrode side, the dielectric layer adopts an organic resin; and a first hydrophobic layer and a second hydrophobic layer located between the first electrode and the dielectric layer, wherein the first hydrophobic layer and the second hydrophobic layer There are gaps between the layers, forming droplet accommodation spaces. Through the technical scheme of the invention, the detection speed of metal ions can be increased, and the driving voltage for detecting metal ions can be reduced.

Description

technical field [0001] The invention relates to the field of microfluidic technology, in particular to a microfluidic chip, a working method thereof, and a metal ion detection device. Background technique [0002] Microfluidics is a technology that precisely controls and manipulates micro-scale fluids. Through this technology, researchers can integrate basic operating units such as sample preparation, reaction, separation, and detection into a centimeter-scale chip. This technology is generally used in the analysis process of micro samples in the fields of biology, environment, chemistry, pharmacy, etc., among which metal ion detection is an important detection item in water quality detection, blood detection and other processes. Microfluidic technology is of great significance to the development of biomedicine, drug diagnosis, food hygiene, environmental monitoring and other fields. [0003] The existing metal ion detection is generally completed by colorimetry, weighing m...

AI Technical Summary

Problems solved by technology

However, the current microfluidic chips used for ion detection generally require high voltages. For example, microfluidic chips based on the principle of electrophoresis to detect metal ions require thousands of volts of control voltage, which is less safe.

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