Researchers develop ultrathin, self-powered e-health patches that can monitor a user's pulse and blood pressure


Sheet-shaped piezoelectric system with self-generation and storage functions (picture of an integrated system). Photo credit: Osaka University

Scientists from Osaka University, in collaboration with Joanneum Research (Weiz, Austria), have developed wireless health monitoring patches that use embedded piezoelectric nanogenerators to supply harvested biomechanical energy. This work can lead to new autonomous health sensors as well as self-powered portable electronic devices.

As wearable technology and smart sensors grow in popularity, the problem of powering all of these devices becomes more relevant. While the power requirements of any component can be small, the need for wires or even batteries becomes cumbersome and impractical. Therefore, new energy generation methods are required. The ability of built-in health monitors to use ambient motion to both power and activate sensors will also help speed their adoption into doctor's offices.

Now an international team of researchers from Japan and Austria has invented new, ultra-flexible plasters with a ferroelectric polymer that not only record a patient's pulse and blood pressure, but can also propel itself from normal movements. The key started with a substrate only a micrometer thick. Using a strong electric field, ferroelectric crystalline domains in a copolymer were aligned so that the sample had a large electric dipole moment. Based on the piezoelectric effect, which converts natural movement very efficiently into small electrical voltages, the device reacts quickly to changes in strain or pressure. These voltages can either be converted into signals for the medical sensors or to generate the energy directly. "Our e-health patches can be used to screen for lifestyle diseases such as heart disease, signs of stress and sleep apnea," says first author Andreas Petritz.

Improve your health Photo of the piezoelectric sheet metal system. Accurate biomonitoring is possible without this being noticed. The ultra-thin and soft film system enables the device to be attached to the skin. Photo credit: Osaka University

The authors estimate that multilayered plasters can harvest up to 200 millijoules per day through biomechanical movement when worn on joints such as knees or elbows. This is enough to monitor cardiovascular parameters several times a day. And the spots are so thin that they are barely noticeable, which makes a necessary evil for many patients - daily health monitoring - less uncomfortable.

"We expect that our results will help in the development of other leaf-shaped sensor systems that can perform precise biomonitoring when applied to the surface of the skin," says senior author Tsuyoshi Sekitani. Additional modules enable other functions, e.g. B. wireless communication with a smartphone or computer.

The article "Imperceptible Energy Harvesting Device and Biomedical Sensor Based on Ultra-flexible Ferroelectric Converters and Organic Diodes" was published in Nature Communications.

Researchers harvest energy from radio waves to power portable devices More information: Andreas Petritz et al. Inaudible energy harvesting device and biomedical sensor based on ultra-flexible ferroelectric converters and organic diodes, Nature Communications (2021). DOI: 10.1038 / s41467-021-22663-6 Provided by Osaka University

Quote: Researchers are developing ultra-thin, self-sufficient e-health patches that can be used to monitor a user's pulse and blood pressure (2021, April 23). This information was accessed on April 25, 2021 from https://techxplore.com/news/2021-04-ultrathin-self-. powered-e-health-patches-user.html

This document is subject to copyright. Except for fair trade for the purpose of private study or research, no part may be reproduced without written permission. The content is provided for informational purposes only.


continue reading https://dailytechnonewsllc.com/researchers-develop-ultrathin-self-powered-e-health-patches-that-can-monitor-a-users-pulse-and-blood-pressure/?feed_id=5436&_unique_id=61ca5dd66099a

Commentaires

Enregistrer un commentaire

Posts les plus consultés de ce blog

Projections for the gambling industry for 2022

Image
W. ith 2021, which is almost behind us, it is time to look ahead to 2022. While it will be a few more months, most business people are already planning strategies for what lies ahead. These were exciting years with many unpredictable events and trends. We have seen how digital currencies, virtual reality, esports, live dealer games, IoT and many other technologies have found their place in the industry. The importance of cell phones to the gambling industry has also been shown. What else have the last two years taught us and what can we expect from the next year? The year that everything changed 2020 was a year neither of us was prepared for. Due to the COVID-19 pandemic, the world was closed until mid-March, sporting events were canceled and land casinos closed. The operators were preparing for a difficult time,
Lire la suite

Tremendous scope for India-US cooperation in health technology and pharma, says expert

Image
As the US government stepped up its support to India in its fight against a deadly wave of COVID-19, an Indian public health expert pointed out the enormous scope for collaboration between India and the US on health technology and pharmaceuticals. "Now that we are out of the crisis, health technology and pharmaceuticals are two areas where there is tremendous scope for India-US collaboration," said Indian official Dr. Mrinalini Darswal, who is currently doing a PhD in public health with a focus on COVID-19 at Harvard University, tells. Darswal, a 2002 IAS officer for Odisha cadres, said India had demonstrated its expertise in the health sector, particularly in terms of speed of innovation, manufacturing and cost efficiency. It would be beneficial for the US to leverage India's technical expertise and installed drug manufacturing capabilities to source healthcare equipment, drugs, personal protective equipment and vaccines now at competitive prices, she said. "
Lire la suite

Global Home Sleep Screening Wearable Devices Market Insights Report, Forecast to 2027 – KSU

Image
This latest report on Portable Home Sleep Screening Devices published by Global Market Monitor covers current market dynamics, and offers effective competitive strategies and market guidelines for the majority of practitioners. Get a sample copy of the Wearable Home Sleep Screening Devices Market report at: https://www.globalmarketmonitor.com/request.php?type=1&rid=655284 Main manufacture: To gain an insight into the competitive landscape, the report provides an overview of the major players in the Portable Devices for Home Sleep Screening Market including: ResMed VirtuOx Itamar Medical Royal Philips SleepWorks Cleveland Medical Devices Responsive surface technology Huawei Fitbit This is sleep dreams Garmin Huami ApnoeMed Simmons Bedding Company NovaSom Fossil group Take a look at the comprehensive analysis on different segments: https://www.globalmarketmonitor.com/reports/655284-home-sleep-screening-wearable-devices-market-report.html Home Sleep Screening Wearable
Lire la suite