Wearable sensors that track heart rate or steps are popular fitness products. But in the future, working up a good sweat could provide useful information about a person’s health.
Now, researchers reporting in ACS Applied Materials & Interfaces have developed a headband that measures electrolyte levels in sweat. And unlike many previous sweat sensors, the device can heal itself when cut or scratched during exercise.
Human sweat contains biochemical markers, such as metabolites, electrolytes and heavy metals, that can indicate a person’s health and even help diagnose some diseases. In recent years, scientists have developed sweat sensors in the form of patches, bandages and tattoos, but their performance can be impaired by natural movements such as walking, running, jumping or throwing. Also, if the sensors become scratched or broken, which can easily happen during exercise, they often cannot be repaired. Sung Yeon Hwang, Jeyoung Park, Bong Gill Choi and colleagues at Korea Research Institute of Chemical Technology wanted to develop a wearable sweat sensor that could withstand vigorous exercise and quickly repair itself if damaged.
To make their self-healing sensor, the researchers coated carbon fiber thread electrodes with a citric acid-based polymer. When cut, the threads quickly rejoined through hydrogen bonding of the polymer. They sewed the threads, which could detect potassium and sodium ions, into a headband and added a wireless electronic circuit board that could transfer data to a smart phone. A human volunteer wore the headband while exercising on a stationary bike, and the sensor accurately tracked the electrolyte concentrations in their sweat over 50 minutes of exercise. During cycling, the researchers cut the sensor threads with scissors, and the threads healed and returned to normal operation in only 20 seconds.
Learn more: A self-healing sweat sensor
Go deeper with Bing News on:
- Self-powered multifunctional sensing based on super-elastic fibers by soluble-core thermal drawingon March 3, 2021 at 2:49 am
Moreover, by combining with triboelectric nanogenerator technique, this fiber acts as a self-powered self-adapting multi-dimensional sensor attached on sports gears to monitor sports performance ...
- Live Now: Self Healing Materials Market Size, Share and Growth to Cross over $ 8.23 billion by 2026on February 25, 2021 at 4:07 am
Selbyville, Delaware. The report Self Healing Materials Market Size and Analysis maintains enhanced dynamics and ...
- Self-Healing Materials Market Size Analysis, Share, Growth, Trends, Segmentation, and Regional Demand Forecast by 2026on February 24, 2021 at 11:37 pm
The growing demand for self-healing materials in the automobile sector is expected to enable speedy expansion of the market, states Fortune Business Insights, in a report, titled “Self-Healing ...
- Ring’s Video Doorbell Pro 2 has built-in radaron February 24, 2021 at 3:35 pm
Both harness the new radar sensor — with a range of up to 30 feet — to better identify and track people approaching your home. The former is designed to make motion detection far more accurate ...
- USC Researchers Develop 3D Printed Self-Healing Silicone Rubberon February 23, 2021 at 4:00 pm
the researchers created a self-healing 3D soft actuator that can lift 10 times its own weight. It’s a nacre-like stiff-soft composite that restores to over 90 percent toughness after fracture, and a ...
Go deeper with Google Headlines on:
Go deeper with Bing News on:
- How to Create a DIY Peloton Setup At Home For a Fraction of the Priceon March 5, 2021 at 10:39 pm
Throughout the course of the coronavirus pandemic, working out at home has become the norm. And while high-tech stationary bikes like Peloton or SoulCycle are trendy and tempting to add to your home ...
- Smart OLED Tattoos With Sweat Sensor, Other Health Monitoring Features In The Workson March 4, 2021 at 4:21 am
Scientists hope to integrate what they refer to as a “light-up tattoo” system on more than just the human body.
- A novel device for detecting anaerobic threshold using sweat lactate during exerciseon March 2, 2021 at 8:52 am
The lactate threshold (LT1), which is defined as the first rise in lactate concentration during incremental exercise, has not been non-invasively and conveniently determined in a clinical setting. We ...
- Shimmer launches upgraded wearable for remote patient monitoringon March 2, 2021 at 6:36 am
The Verisense Pulse+ can measure heart rate, oxygen saturation, emotional responses, and activity and sleep levels of at-home clinical trial participants.
- Shimmer launches Pulse+ the first line extension for its Verisense® wearable sensing platform for clinical trialson March 2, 2021 at 6:33 am
Shimmer Research, a global leader in wearable technology for research applications, today launched Verisense Pulse+, a new sensor for the Verisense platform. Verisense Pulse+ provides ...