A wearable cloth-based electrochemical sweat sensing device and method

Abstract

The invention discloses a wearable cloth-based electrochemical sweat sensing device and method. The device includes a sweat collection layer, a sweat detection layer, a waste liquid collection layer and a fixed pressing layer. The sweat collection layer is used to quickly collect sweat on the skin surface. The sweat detection layer includes a folded cloth-based detection chip, the cloth-based detection chip includes a cloth-based carrier, an auxiliary unit and a sweat detection unit, the waste liquid collection layer includes a paper-based waste liquid collection sheet, and the fixed pressing layer is used to fix the cloth-based detection The chip and the paper-based waste liquid collection sheet are connected to the external circuit. Sweat penetrates into the hydrophilic area of ​​the cloth-based detection chip through the sweat collection layer, and then reaches the working electrode for detection. The paper-based waste liquid collection sheet absorbs the sweat overflowing from the working electrode, and the cloth-based detection chip transmits the detection signal to the external circuit for analysis. Finally, the sweat detection results are obtained, and the low-cost, non-invasive, stable real-time continuous monitoring of the sweat components on the human skin surface is realized, which is of great significance to the monitoring of human health status.

Description

technical field [0001] The invention relates to the technical field of electrochemical sensors, in particular to a wearable cloth-based electrochemical sweat sensing device and method. Background technique [0002] With the continuous development of electronic science and technology, and the deepening of research on wearable sensor devices, the research and development of smart medical products is also developing rapidly. The development of smart medical products is increasingly oriented towards the non-invasive detection of different biological fluids (such as saliva, sweat or tears) to enable continuous monitoring of (bio)markers relevant to clinical performance. Wearable sensors have broad application prospects in fields such as healthcare, fitness, security, and the environment due to their advantages of non-invasive and sustainable detection. [0003] Sweat is a common and readily available epidermal biofluid whose main component is water and contains metabolites (such...

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Problems solved by technology

[0004] At present, wearable electrochemical sweat sensors are mostly based on polymer materials, such as polydimethylsiloxane (PDMS) and polyethylene terephthalate (PET). The production process is cumbersome

In addition, in the traditional three-electrode system, the working electrode and the reference electrode are on the same plane as the counter electrode, so the detected sweat cannot be discharged in time inside the sensor and accumulates on the surface of the working electrode, which greatly reduces the sensitivity of the wearable sensor.

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