A simple sealing device based on capillary force

Lu, Shengda; Xian, Zhaokun; Gao, Nailong; You, Hui

doi:10.2116/analsci.21n035

Cited by 1 publication

(1 citation statement)

References 17 publications

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“…Microchannels in microfluidic devices are on the micrometer scale. Hydrophilic channels have a positive capillary force that draws sweat into the microchannels, while hydrophobic channels have a negative capillary force that suppresses liquid entry [94][95][96]. Partial hydrophobic modification in the hydrophilic channel forms a hydrophobic valve that can control the liquid flow direction.…”

Section: Sampling Of Non-electrochemical Sweat Sensors Based On Micro...mentioning

confidence: 99%

Advances in Non-Electrochemical Sensing of Human Sweat Biomarkers: From Sweat Sampling to Signal Reading

Yang,

Sun,

Lai

et al. 2023

Biosensors

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Sweat, commonly referred to as the ultrafiltrate of blood plasma, is an essential physiological fluid in the human body. It contains a wide range of metabolites, electrolytes, and other biologically significant markers that are closely linked to human health. Compared to other bodily fluids, such as blood, sweat offers distinct advantages in terms of ease of collection and non-invasive detection. In recent years, considerable attention has been focused on wearable sweat sensors due to their potential for continuous monitoring of biomarkers. Electrochemical methods have been extensively used for in situ sweat biomarker analysis, as thoroughly reviewed by various researchers. This comprehensive review aims to provide an overview of recent advances in non-electrochemical methods for analyzing sweat, including colorimetric methods, fluorescence techniques, surface-enhanced Raman spectroscopy, and more. The review covers multiple aspects of non-electrochemical sweat analysis, encompassing sweat sampling methodologies, detection techniques, signal processing, and diverse applications. Furthermore, it highlights the current bottlenecks and challenges faced by non-electrochemical sensors, such as limitations and interference issues. Finally, the review concludes by offering insights into the prospects for non-electrochemical sensing technologies. By providing a valuable reference and inspiring researchers engaged in the field of sweat sensor development, this paper aspires to foster the creation of innovative and practical advancements in this domain.

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Section: Sampling Of Non-electrochemical Sweat Sensors Based On Micro...mentioning

confidence: 99%