Capacitive Sweat Sensor Constructed by Gui Diatomaceous Earth

Yang, Chia−Ming; Peng, Hsin-Yin; Zeng, Wei-Yin; Chen, Chun‐Hui; Lai, Chao‐Sung

doi:10.1016/j.proeng.2016.11.212

Cited by 3 publications

(3 citation statements)

References 4 publications

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“…This brought about the development of wearable SR sensors that utilize various mechanisms such as colorimetric, humidity, and capacitive flow meters [11][12][13][14]. However, there is still much to be improved with these proposed methods: colorimetric-based flow meters require post-collection analysis and therefor do not provide real-time measurement, humidity sensors can only measure the transepidermal water loss which is different from actual sweating rate [10], while capacitive SR sensors typically involve absorbent pads that need to be processed after every measurement [15,16]. Zhao et al demonstrated SR measurement using a calorimetric flow rate sensor that can be miniaturized and facilitates continuous and real-time measurement [17].…”

Section: Introductionmentioning

confidence: 99%

Wearable microfluidic sweat collection platform with a calorimetric flow rate sensor for realtime and long-term sweat rate measurements

Silverio,

Ho,

Ang

et al. 2024

J. Micromech. Microeng.

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This work presents the design and fabrication of a wearable microfluidic patch-based system for sweat collection with a calorimetric flow rate sensor based on heat convection for measuring sweat rate. The effects were predicted using a 3D multi-physics simulator and were verified on a fabricated patch made of polyimide layers. The sensor can detect surface temperature gradients of 302 to 312 K caused by fluid flowing thru the microfluidic channels at a rate of 0.5 to 23 µg/s that fall within the physiological range of sweat rate. Meanwhile, the relation between flow rate and temperature gradient is highly linear (pearson r2 = 0.999) and repeatable. This work also demonstrates a low-cost method for patterning microfluidic channels on flexible substrates which can be used for mass production of wearable patches.

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Section: Introductionmentioning

confidence: 99%

Wearable microfluidic sweat collection platform with a calorimetric flow rate sensor for realtime and long-term sweat rate measurements

Silverio,

Ho,

Ang

et al. 2024

J. Micromech. Microeng.

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“…For example, an enzymatic biosensor based on graphene oxide-coated silica nanospheres realized a sweat glucose biosensing [8] . The capacitive sweat sensor based on mesoporous nanosilica can be used as a potential candidate for the rate test of human sweating [9] . A Surface-enhanced Raman scattering (SERS) probe based on the silica nanospheres' concentrating effect achieves the quantitative and specific detection of tyrosine and urea in sweat [10] .…”

Section: Introductionmentioning

confidence: 99%

The Study and Application of Nanosilica Biosensor for Sweat Detection

Chen

et al. 2023

J. Phys.: Conf. Ser.

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Sweat analysis is a non-invasive, simple, and convenient means of disease detection, which is extremely useful in human daily supervision. This work demonstrates the design of the nanosilica biosensor for simple, sensitive, and low-cost colorimetric sensing of glucose and pH in sweat. The nanosilica biosensing interface was prepared by chemical vapor deposition, surface modification, superwettable patterning, and sensing regions functionalization. The nanosilica substrate has high mechanical robustness and is stable enough as a biosensing platform. Colorimetric tests enable direct naked-eye observation monitoring of sweat indicators like pH and glucose without the need for electrical or optical apparatus. This will greatly enhance the convenience and reduce costs. The design of a biosensing platform will be made possible by the nanosilica biosensor, which also has significant promise for applications in clinical detection and multicomponent biosensing.

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“…One of them is TSL connecting elements of electronic systems for monitoring human physiological parameters [1][2][3]. An example of such an application may be a line transmitting signal from various types of sensors, for example, capacitive sweat sensors [4]. Another potential application is TSL for powering textile antennas [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Research into the Textile-Based Signal Lines Made Using Ultrasonic Welding Technology

Leśnikowski

2020

Autex Research Journal

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The article describes research into the transmission properties of textile signal lines (TSLs) made using ultrasonic welding technology. The presented TSLs are made from electroconductive, nickel coated, fabric strips welded between non-conducting textile layers. The article presents an analysis of the usability of the ultrasonic welding method for creating TSLs. This analysis shows that direct welding of an electroconductive path with the substrate increases its linear resistance, making it impossible to create a properly functioning line. This article presents an alternative method of creating the line using ultrasound welding technology.

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Capacitive Sweat Sensor Constructed by Gui Diatomaceous Earth

Cited by 3 publications

References 4 publications

Wearable microfluidic sweat collection platform with a calorimetric flow rate sensor for realtime and long-term sweat rate measurements

Wearable microfluidic sweat collection platform with a calorimetric flow rate sensor for realtime and long-term sweat rate measurements

The Study and Application of Nanosilica Biosensor for Sweat Detection

Research into the Textile-Based Signal Lines Made Using Ultrasonic Welding Technology

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