Think I'm going to stop keeping up with the wearables, it's just not as interesting to me anymore and it all kind of sounds the same. Also, skins are the new wearables; see next post.
But before I forget, what the hell happened to China and their science sector? I used to see tons of articles coming from Chinese institutions, especially when reading on the "wearables" topic, also on "ambient energy harvesting". But sometime around the pandemic, it seemed to have stopped almost entirely. It seems to have come back a bit, but there was a noticeable difference for a while there.
Full-day, solar-powered, bidirectional thermoregulatory clothing that can respond to changing temperatures
Dec 2023, phys.org
A microfiber-based meta-fabric of organic photovoltaic modules combined with a bidirectional electrocaloric device that provides full-day thermoregulation of body temperature during periods of changing external temperatures; providing 10.1 K (20F?) of cooling to the skin in a hot environment and 3.2 K of heating when it was cold out
via Nankai University in China: Ziyuan Wang et al, Self-sustaining personal all-day thermoregulatory clothing using only sunlight, Science (2023). DOI: 10.1126/science.adj3654
Also: Xingyi Huang et al, Solar-powered clothes, for the heat and cold, Science (2023). DOI: 10.1126/science.adl5650
Health data, faster: Wearable stretchy sensor can process, predict health data
Dec 2023, phys.org
It's a throat sensor that records vibrations and electrical muscle impulses from the neck area to monitor a user's speech and swallowing patterns using a conductive composite hydrogel electrode interface that can withstand a user's movements while maintaining good signal quality.
via Penn State and Pen-Tung Sah Institute of Micro-Nano Science and Technology at Xiamen University in China: Hongcheng Xu et al, A fully integrated, standalone stretchable device platform with in-sensor adaptive machine learning for rehabilitation, Nature Communications (2023). DOI: 10.1038/s41467-023-43664-7
Two-channel sensor measures biomarker concentration in sweat
Jan 2024, phys.org
The sensor relies on a dye to signal the presence of the biomarker and can be read with the naked eye, making it inexpensive and easy to use.
via Pennsylvania State University: Muhan Deng et al, Skin‐Interfaced Bifluidic Paper‐Based Device for Quantitative Sweat Analysis, Advanced Science (2023). DOI: 10.1002/advs.202306023
Light-emitting textiles for diverse flexible and wearable displays
Jan 2024, phys.org
Embroiderable, multicolor, electroluminescent threads in blue, green, and yellow, that show compatibility with standard embroidery methods.The researchers used the threads to stitch decorative designs onto a variety of consumer fabrics, without compromising their wearability or light-emitting capacity. The scientists illuminated specific messages or designs on the consumer products for the purpose of developing emergency alerts on helmet liners and as physical hazard signs.They coated the electroluminescent layer with a mixture of zinc sulfide phosphors and thermoplastic polyurethane across the surface of a conductive, embroiderable thread, and prepared a transparent conductive fiber by coating a transparent, embroiderable nylon fiber with silver nanowires using an adhesion promoter made of ethyl acetate and resorcinol.
via Weldon School of Biomedical Engineering at Purdue and Indiana University School of Medicine: Seungse Cho et al, Machine embroidery of light-emitting textiles with multicolor electroluminescent threads, Science Advances (2024). DOI: 10.1126/sciadv.adk4295
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| AI Art - Shark-headed Businessman Sips Precision Engineered Champagne - 2024 |
Research team develops sweat-resistant wearable robot sensor
Jan 2024, phys.org
Smart earrings can monitor a person's temperature
Feb 2024, phys.org
Research team develops wearable device for fashionable personal thermal comfort
Feb 2024, phys.org
World's first real-time wearable human emotion recognition technology developed
Feb 2024, phys.org
Tiny magnetic implants enable wireless health monitoring when paired with wearable device
Mar 2024, phys.org
Chipless fiber for wireless visual-to-digital transmission senses interactions with the human body
Apr 2024, phys.org
The new fiber developed by the research team has three layers. One serves as a core, triggering an electromagnetic field, another serves as a dielectric layer that holds electromagnetic energy obtained from the human body. The third works as an optical layer to visualize the electric field. In short, the new fiber works by capturing and using electromagnetic energy in the air and using the human body as a circuit.When sewn into a textile and worn on the body, electromagnetic energy from the environment striking the fiber is converted to both radio waves and visible light. This allows the fiber to release signals when touched by a body part such as the skin of the chest or a finger. Then, by controlling the system in specific ways, the signals it emits can be programmed.To test their fiber, the researchers stitched some of them into a shirt and used them to feed a processor that displayed a message on the shirt. They also added a keyboard that allowed tapping on the wrist to create and send messages.
via Donghua University and the National University of Singapore: Weifeng Yang et al, Single body-coupled fiber enables chipless textile electronics, Science (2024). DOI: 10.1126/science.adk3755
Perspective piece: Yunzhu Li et al, Intelligent textiles are looking bright, Science (2024). DOI: 10.1126/science.ado5922
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