Supercharged flexible sweat sensor of secondary collection

Abstract

The invention discloses a supercharged flexible sweat sensor of secondary collection. The sensor mainly comprises a microfluid system module, a sweat sensor module and a sealing module. The microfluidsystem module comprises a bottom plate and two microfluid sub-modules arranged on the bottom plate, and the two microfluid sub-modules are symmetrically arranged on the two sides in the bottom plate.Each microfluid sub-module comprises a module inlet, a first module outlet, an explosion valve, a microfluid pump, a reaction cavity, a first-stage liquid storage chamber, a second-stage liquid storage chamber, a second module outlet and a third module outlet which are formed in the top surface of the bottom plate or formed in the top surface of the bottom plate; and the bottom plate is made of polydimethylsiloxane (PDMS). According to the invention, the sensor can effectively separate the new sweat from the old sweat, can achieve the qualitative detection and the quantitative detection in the sweat, integrates the collection, the storage, the separation and the discharge, has the small size, can be suitable for the simultaneous monitoring of various situations such as sports, diabetes, an alcohol content and the like, and can be repeatedly used so as to substantially save the cost.

Description

technical field [0001] The invention relates to a sensor, a sweat sensor in the field of flexible materials, in particular to a sequentially collected pressurized flexible sweat sensor for collecting and storing sweat. Background technique [0002] Sweat, as one of the body fluids, contains many biomarkers such as metabolites, proteins, hormones and electrolytes. Many studies have shown that the concentration of substances in sweat, like the concentration of substances in blood, is highly correlated with many diseases. For example, the pH value in sweat can be used to judge whether the human body is metabolic alkalosis, and the glucose in sweat can detect diabetes in individual organisms severity. Sodium ions and potassium ions can judge people's dehydration status, and the demand for sweat sensors has also arisen at the historic moment. However, there are many problems in sweat sensors, such as new and old sweat cannot be effectively separated, sweat detection is not accur...

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Problems solved by technology

Sodium ions and potassium ions can judge people's dehydration status, and the demand for sweat sensors has also arisen at the historic moment. However, there are many problems in sweat sensors, such as new and old sweat cannot be effectively separated, sweat detection is not accurate enough, and sweat reaches The surface of the skin cannot be quickly isolated from the skin, causing pollutants on the skin to blend into the sweat and interfere with the detection

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