When UC Berkeley engineers say they are going to make you sweat, it is all in the name of science.
Specifically, it is for a flexible sensor system that can measure metabolites and electrolytes in sweat, calibrate the data based upon skin temperature and sync the results in real time to a smartphone.
While health monitors have exploded onto the consumer electronics scene over the past decade, researchers say this device, reported in the Jan. 28 issue of the journal Nature, is the first fully integrated electronic system that can provide continuous, non-invasive monitoring of multiple biochemicals in sweat.
The advance opens doors to wearable devices that alert users to health problems such as fatigue, dehydration and dangerously high body temperatures.
“Human sweat contains physiologically rich information, thus making it an attractive body fluid for non-invasive wearable sensors,” said study principal investigator Ali Javey, a UC Berkeley professor of electrical engineering and computer sciences. “However, sweat is complex and it is necessary to measure multiple targets to extract meaningful information about your state of health. In this regard, we have developed a fully integrated system that simultaneously and selectively measures multiple sweat analytes, and wirelessly transmits the processed data to a smartphone. Our work presents a technology platform for sweat-based health monitors.”
Javey worked with study co-lead authors Wei Gao and Sam Emaminejad, both of whom are postdoctoral fellows in his lab. Emaminejad also has a joint appointment at the Stanford School of Medicine, and all three have affiliations with the Berkeley Sensor and Actuator Center and the Materials Sciences Division at Lawrence Berkeley National Laboratory.
Chemical clues to a person’s physical condition
To help design the sweat sensor system, Javey and his team consulted exercise physiologist George Brooks, a UC Berkeley professor of integrative biology. Brooks said he was impressed when Javey and his team first approached him about the sensor.
“Having a wearable sweat sensor is really incredible because the metabolites and electrolytes measured by the Javey device are vitally important for the health and well-being of an individual,” said Brooks, a co-author on the study. “When studying the effects of exercise on human physiology, we typically take blood samples. With this non-invasive technology, someday it may be possible to know what’s going on physiologically without needle sticks or attaching little, disposable cups on you.”
The prototype developed by Javey and his research team packs five sensors onto a flexible circuit board. The sensors measure the metabolites glucose and lactate, the electrolytes sodium and potassium, and skin temperature.
“The integrated system allows us to use the measured skin temperature to calibrate and adjust the readings of other sensors in real time,” said Gao. “This is important because the response of glucose and lactate sensors can be greatly influenced by temperature.”
Developing smart wristbands and headbands
Adjacent to the sensor array is the wireless printed circuit board with off-the-shelf silicon components. The researchers used more than 10 integrated circuit chips responsible for taking the measurements from the sensors, amplifying the signals, adjusting for temperature changes and wirelessly transmitting the data. The researchers developed an app to sync the data from the sensors to mobile phones, and fitted the device onto “smart” wristbands and headbands.
The Latest on: Wearable sensors
via Google News
The Latest on: Wearable sensors
- LOOMIA’s flexible e-textile circuits bring innovation in robotics, wearable Technology And auto industryon January 25, 2021 at 7:07 am
LOOMIA's flexible e-textile circuits bring innovation in robotics, wearable Technology And auto industry LOOMIA's projects range from ...
- LOOMIA’s Flexible E-Textile Circuits Bring Innovation To Robotics, Wearable Technology And Automotive Industrieson January 25, 2021 at 6:50 am
The ideas behind smart and e-textiles have been around for many decades, but with an increasingly commercial focus over the past 30, or even more, years.
- Xiaomi Mi Band 6 May Feature SpO2 Sensor, GPS, Alexa Support & Moreon January 25, 2021 at 5:36 am
A new source has revealed Xiaomi Mi Band 6 may feature up to 30 activity modes, a large display, Alexa support, GPS, and more.
- Face Mask Sensor to Detect COVID-19on January 22, 2021 at 1:02 pm
Our breath holds a multitude of biomarkers, including potentially those indicating the presence of SARS-CoV-2, the virus responsible for COVID-19. Those ...
- Facemask Sensor Being Developed at UC San Diego Could Help Detect COVID-19on January 22, 2021 at 10:15 am
A team at UC San Diego School of Engineering is working to develop a sensor that would stick to your facemask and detect COVID-19 in your breath. “Just imagine you would have a roll of stickers. And ...
- UCSD researchers developing wearable COVID-19 test stripon January 21, 2021 at 4:35 pm
The wearable test strips, currently in development at UCSD, would change color if the virus is detected in a person’s breath or saliva.
- Researchers develop wearable sweat sensors to predict IBD flare-upson January 21, 2021 at 11:07 am
The Crohn's & Colitis Foundation and the American Gastroenterological Association (AGA) are committed to improving the lives of millions of Americans living with inflammatory bowel disease (IBD), ...
- UC San Diego developing a facemask sensor that detects the novel coronaviruson January 21, 2021 at 10:30 am
The National Institutes of Health has awarded UC San Diego $1.3 million to develop a small, wearable sensor that can tell whether a person has the novel coronavirus or has been exposed to it by ...
- Wearable Sensors Detect Respiratory, Cardiac Symptomson January 13, 2021 at 12:21 pm
A highly sensitive wearable sensor is in development for monitoring heart disease—as well as potentially detecting early COVID-19 symptoms.
- KRONOS ADVANCED TECHNOLOGIES INTRODUCES NEWEST PERSONAL WEARABLE BIO-AEROSOL REAL-TIME SENSOR TO PROTECT PUBLIC DURING PANDEMICon January 13, 2021 at 9:31 am
KRONOS ADVANCED TECHNOLOGIES, INC.,, a revenue-generating, product development and production company that has significantly changed the way air is moved, filtered and sterilized announced today the ...
via Bing News