Wearable Tattoo Detects Alcohol Levels in Human Sweat
By HospiMedica International staff writers Posted on 03 Nov 2016 |
Image: A wearable alcohol detection patch can prevent dangerous drunk driving (Photo courtesy of NIBIB).
A new study describes a novel biosensing patch that can detect alcohol in induced perspiration and send the information to a smartphone in just 8 minutes.
Researchers at the University of California, San Diego (UCSD, USA), in collaboration with the U.S. National Institute of Biomedical Imaging and Bioengineering (NIBIB; Bethesda, MD, USA) developed the prototype noninvasive alcohol-monitoring platform, which integrates an iontophoretic-biosensing temporary tattoo with flexible wireless electronics. The device is based on the transdermal delivery of pilocarpine, a drug that induces sweat via iontophoresis. Ethanol can then be detected using an alcohol-oxidase enzyme and a Prussian Blue electrode transducer.
The new skin-compliant biosensor displays a highly selective and sensitive amperometric response to ethanol. On-body results with human subjects show distinct differences in current response before and after alcohol consumption, reflecting the increase of ethanol levels. The skin-worn sensor is coupled with a flexible electronics board that controls the iontophoresis an amperometry operation and data transmission in real time via Bluetooth communication to a smartphone app. The study was published in the July 2016 issue of the ACS Sensors.
“Measuring alcohol in sweat has been attempted before, but those technologies took 2-3 hours to measure alcohol levels,” said senior author Patrick Mercier, PhD, of the UCSD Jacobs School of Engineering. “Our patch sends alcohol levels to your smartphone in just eight minutes, making real-time alcohol monitoring possible, practical, and personal.”
“It resembles a temporary tattoo, but is actually a biosensor patch that is embedded with several flexible wireless components,” commented Seila Selimovic, PhD, director of the NIBIB Program in Tissue Chips. “One component releases a chemical that stimulates perspiration on the skin below the patch. Another component senses changes in the electrical current flowing through the generated sweat, which measures alcohol levels and sends them to the user's cell phone.”
According to the researchers, the new wearable monitor has the advantage of being non-invasive and unobtrusive, which makes it ideal, for example, in a bar, where it could potentially aid people to self-monitor their alcohol intake and avoid driving if they have had too much to drink.
Related Links:
University of California, San Diego
U.S. National Institute of Biomedical Imaging and Bioengineering
Researchers at the University of California, San Diego (UCSD, USA), in collaboration with the U.S. National Institute of Biomedical Imaging and Bioengineering (NIBIB; Bethesda, MD, USA) developed the prototype noninvasive alcohol-monitoring platform, which integrates an iontophoretic-biosensing temporary tattoo with flexible wireless electronics. The device is based on the transdermal delivery of pilocarpine, a drug that induces sweat via iontophoresis. Ethanol can then be detected using an alcohol-oxidase enzyme and a Prussian Blue electrode transducer.
The new skin-compliant biosensor displays a highly selective and sensitive amperometric response to ethanol. On-body results with human subjects show distinct differences in current response before and after alcohol consumption, reflecting the increase of ethanol levels. The skin-worn sensor is coupled with a flexible electronics board that controls the iontophoresis an amperometry operation and data transmission in real time via Bluetooth communication to a smartphone app. The study was published in the July 2016 issue of the ACS Sensors.
“Measuring alcohol in sweat has been attempted before, but those technologies took 2-3 hours to measure alcohol levels,” said senior author Patrick Mercier, PhD, of the UCSD Jacobs School of Engineering. “Our patch sends alcohol levels to your smartphone in just eight minutes, making real-time alcohol monitoring possible, practical, and personal.”
“It resembles a temporary tattoo, but is actually a biosensor patch that is embedded with several flexible wireless components,” commented Seila Selimovic, PhD, director of the NIBIB Program in Tissue Chips. “One component releases a chemical that stimulates perspiration on the skin below the patch. Another component senses changes in the electrical current flowing through the generated sweat, which measures alcohol levels and sends them to the user's cell phone.”
According to the researchers, the new wearable monitor has the advantage of being non-invasive and unobtrusive, which makes it ideal, for example, in a bar, where it could potentially aid people to self-monitor their alcohol intake and avoid driving if they have had too much to drink.
Related Links:
University of California, San Diego
U.S. National Institute of Biomedical Imaging and Bioengineering
Latest Health IT News
- Machine Learning Model Improves Mortality Risk Prediction for Cardiac Surgery Patients
- Strategic Collaboration to Develop and Integrate Generative AI into Healthcare
- AI-Enabled Operating Rooms Solution Helps Hospitals Maximize Utilization and Unlock Capacity
- AI Predicts Pancreatic Cancer Three Years before Diagnosis from Patients’ Medical Records
- First Fully Autonomous Generative AI Personalized Medical Authorizations System Reduces Care Delay
- Electronic Health Records May Be Key to Improving Patient Care, Study Finds
- AI Trained for Specific Vocal Biomarkers Could Accurately Predict Coronary Artery Disease
- First-Ever AI Test for Early Diagnosis of Alzheimer’s to Be Expanded to Diagnosis of Parkinson’s Disease
- New Self-Learning AI-Based Algorithm Reads Electrocardiograms to Spot Unseen Signs of Heart Failure
- Autonomous Robot Performs COVID-19 Nasal Swab Tests
- Statistical Tool Predicts COVID-19 Peaks Worldwide
- Wireless-Controlled Soft Neural Implant Stimulates Brain Cells
- Tiny Polymer Stent Could Treat Pediatric Urethral Strictures
- Human Torso Simulator Helps Design Brace Innovations
- 3D Bioprinting Rebuilds the Human Heart