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Wearable strain sensor for real-time sweat volume monitoring
2020
iScience
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Such sensor combing swellable hydrogels with strain sensing fabrics provides a novel measurement method of wearable devices for sweat volume monitoring. ...
Here, we present the first example of wearable strain sensor for real-time sweat volume monitoring. ...
The design and results of the wearable strain sensor in vivo Finally, the wearable strain sensor was used for on-body analysis of sweat volume to demonstrate its feasibility for health monitoring applications ...
doi:10.1016/j.isci.2020.102028
pmid:33490926
pmcid:PMC7809499
fatcat:6qzfkc44urdxlbvc43lnjule2q
Laser-induced graphene for bioelectronics and soft actuators
2021
Nano Reseach
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., polymers, wood, food, textiles) in a programmed manner at ambient conditions. ...
Next, we overview the recent studies of LIG-based biophysical (e.g., strain, pressure, temperature, hydration, humidity, electrophysiological) sensors and biochemical (e.g., gases, electrolytes, metabolites ...
For example, the LIG decorated with MoS2 [64] or embedded in soft medical-grade PU [65] , and SiC-LIG composite [39, 40] were explored for strain sensing. ...
doi:10.1007/s12274-021-3441-9
pmid:33841746
pmcid:PMC8023525
fatcat:27aed2m2mregxi5fffa2ay2wpi
Wearable Sweat Loss Measuring Devices: From the Role of Sweat Loss to Advanced Mechanisms and Designs
2021
Advanced Science
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Finally, concluding remarks on opportunities for future application fields and challenges for future sweat sensing are presented. ...
This paper reviews wearable SLMDs with a new health perspective from the role of sweat loss to advanced mechanisms and designs. ...
A more feasible textile-based SLMD for microfluidic applications was demonstrated by Francis et al. based on a similar operating mechanism. ...
doi:10.1002/advs.202103257
pmid:34713981
pmcid:PMC8728835
fatcat:2t2h5rxfpfcsfkvpcbg62jupja
Smart Materials for Wearable Healthcare Devices
[chapter]
2018
Wearable Technologies
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A complementary section of the review linking these advanced materials with wearable device technologies is particularly specified. ...
With continued innovation and intensive attention to the materials and fabrication technologies, development of these healthcare devices is progressively encouraged. ...
Compared with piezoresistive-and piezocapacitive-based strain sensors, strain devices comprised of piezoelectric materials have greater dynamic durability. ...
doi:10.5772/intechopen.76604
fatcat:nabzt3qno5dqlg66lcfnjpgdva
Body-Monitoring and Health Supervision by Means of Optical Fiber-Based Sensing Systems in Medical Textiles
2014
Advanced Healthcare Materials
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Optical fiber-based sensors that were already used in first trials were primarily selected for the section on possible applications. ...
The implementation of these sensor concepts prompts the development of wearable smart textiles. ...
With these, homogeneous textiles with integrated sensors are feasible. ...
doi:10.1002/adhm.201400463
pmid:25358557
fatcat:c7frcmrutfckpong7t2zabfjvu
E-Skin: The Dawn of a New Era of On-Body Monitoring Systems
2021
Micromachines
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Firstly, we revised the material development for e-skin systems. Secondly, aspects related to fabrication techniques were presented. ...
The special features of e-skin as identified contribute clearly to the developing potential as in situ diagnostic tool for further implementation in clinical practice at patient personal levels. ...
The in vivo test (compared with a glucometer) showed a maximum error of about 3%. ...
doi:10.3390/mi12091091
pmid:34577734
fatcat:vlube5dtt5fvlcjomattxinhli
Recent Advances in Electronic Skins with Multiple-Stimuli-Responsive and Self-Healing Abilities
2022
Materials
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Wearable electronic skin (e-skin) has provided a revolutionized way to intelligently sense environmental stimuli, which shows prospective applications in health monitoring, artificial intelligence and ...
We believe that this review will provide valuable guidance for readers to fabricate superior e-skin materials or devices with skin-like multifunctionalities and disparate characteristics. ...
For example, wang and coworkers fabricated a stretchable textile-based multi-ion potentiometric sensor using ion-selective membranes to selectively measure Na + and K + with a wide detection range (Figure ...
doi:10.3390/ma15051661
pmid:35268894
pmcid:PMC8911295
fatcat:5punnkqc2reo3ekuuhjjqpdbma
Piezoresistive Sensing Approaches for Structural Health Monitoring of Polymer Composites—A Review
2021
Eng—Advances in Engineering
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A selection criterion for these techniques is also presented based on sensitivity, manufacturing method and detection capability. ...
Among other properties, piezoresistance is the one that can be detected in composites in real-time as a function of strain. ...
also been put forth [83] but there is a need to conduct a detailed literature review on the Piezoresistive sensing approaches for SHM of composites with a view of conducting a comparative analysis of ...
doi:10.3390/eng2020013
fatcat:74ldyym2l5g7bmcewcmif2otbi
Role of mechanical factors in applications of stimuli-responsive polymer gels – Status and prospects
2016
Polymer
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chemical tailorability, stimuli responsive gels represent a versatile and very promising class of materials for sensors, muscle-type actuators, biomedical applications, and autonomous intelligent structures ...
A short account of mechanisms of gel swelling and mechanical characteristics of importance to stimuli-responsive gels is presented. ...
In general however, the profile of swelling vs. time may differ significantly from one gel system to another thus requiring analysis of the complete time profile of swelling in order to compare the speed ...
doi:10.1016/j.polymer.2016.08.068
pmid:28348443
pmcid:PMC5365095
fatcat:zx3jtenr45celioo7hganxewwq
High-Adhesive Flexible Electrodes and Their Manufacture: A Review
2021
Micromachines
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Among these technologies, adhesion and stretchable electrode technology is a key component for the rapid development of high-performance sensors. ...
All human activity is associated with the generation of electrical signals. ...
For capture and analysis of EP signals, electrodes are essential components, which are composed of base, interface, and packaging materials. ...
doi:10.3390/mi12121505
pmid:34945355
pmcid:PMC8704330
fatcat:2riqmn3h4jdc5mjybvi2j6ztim
Chromism-Integrated Sensors and Devices for Visual Indicators
2022
Sensors
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This operation mechanism can be integrated with various sensors (pressure, strain, biomolecules, gas, etc.) and devices (energy conversion/storage systems) as visual indicators for user-friendly operation ...
For example, one of the representative chromism electrochromic materials exhibits optical modulation under ion insertion/extraction by applying a potential. ...
In the aspect of chromic sensors, multi-stimuli sensors adopt materials with different chromic phenomena, such as thermochromism for temperature sensing, mechanochromism for strain sensing, photochromism ...
doi:10.3390/s22114288
pmid:35684910
fatcat:vrcejqmkejbrdntfq5wbb2fuiu
Smart Contact Lenses for Biosensing Applications
2021
Advanced Intelligent Systems
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Acknowledgements This work was supported by a grant from CooperVision, Inc., to Department of Bioengineering at the University of California, Los Angeles, and Terasaki Institute for Biomedical Innovation ...
W. acknowledge the School of Computer Science and Technology, School of Textile Science and Engineering at Tiangong University in China, and China Scholarship Council. ...
[9] There are four basic types of contact lens sensors for IOP monitoring: capacitance sensor, piezoresistive sensor, strain gauge sensor, and microinductor sensor. ...
doi:10.1002/aisy.202000263
fatcat:ifpn6g2l3ncjffw7rxdb3uayja
Flexible Wireless Passive LC Pressure Sensor with Design Methodology and Cost-Effective Preparation
2021
Micromachines
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In the LC sensing system, the metal rings, as the traditional readout device, are difficult to meet the needs of the portable readout device for the integrated and planar readout antenna. ...
The experimental results show that resonant frequency decreases linearly with the increase of applied pressure in a range of 0–23,760 Pa with a high sensitivity of −2.2 MHz/KPa. ...
We thank Zhuqi, Sun, Haoyu Fang, and Baochun Xu for their experimental work for this article. ...
doi:10.3390/mi12080976
fatcat:qlfh2uckb5cavlnxjzn6zga4oe
A Review of Recent Advances in Flexible Wearable Sensors for Wound Detection Based on Optical and Electrical Sensing
2021
Biosensors
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This paper provides a comprehensive overview for researchers in the development of flexible wearable sensors for wound detection. ...
With advances in materials science and smart sensing technology, flexible wearable sensors for wound condition assessment have been developed that can accurately detect physiological markers in wounds ...
by flexible wearable sensors (Figure 1 ) based on optical and electrical sensing. ...
doi:10.3390/bios12010010
pmid:35049637
pmcid:PMC8773881
fatcat:5vol7iqrkzcprd7sigdw4lfdai
Integrating Ionic Electroactive Polymer Actuators and Sensors Into Adaptive Building Skins – Potentials and Limitations
2020
Frontiers in Built Environment
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small actuated apertures into a fabric membrane, and second, as flexible, energy-and cost-efficient distributed sensors for external load monitoring of such structures. ...
These devices have attracted high interest from industry and academia due to their small actuation voltages, relatively large actuation and sensing responses and their flexible and soft mechanical characteristics ...
A special thanks goes to the Fraunhofer Institute for Manufacturing Engineering and Automation IPA for providing parts of the necessary manufacturing and measurement equipment needed to build and characterize ...
doi:10.3389/fbuil.2020.00095
fatcat:qgx34ypulnez7dpsm2nsxyxide
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