Biodegradable displays for sustainable electronics
KIT researchers develop biodegradable printed display -- publication in the Journal of Materials Chemistry
(Press-News.org) In the next years, increasing use of electronic devices in consumables and new technologies for the internet of things will increase the amount of electronic scrap. To save resources and minimize waste volumes, an eco-friendlier production and more sustainable lifecycle will be needed. Scientists of Karlsruhe Institute of Technology (KIT) have now been the first to produce displays, whose biodegradability has been checked and certified by an independent office. The results are reported in the Journal of Materials Chemistry. (DOI: 10.1039/d0tc04627b)
"For the first time, we have demonstrated that it is possible to produce sustainable displays that are largely based on natural materials with the help of industrially relevant production methods. After use, these displays are no electronic scrap, but can be composted. In combination with recycling and reuse, this might help minimize or completely prevent some of the environmental impacts of electronic scrap," says Manuel Pietsch, first author of the publication and researcher of KIT's Light Technology Institute (LTI), who is working at the Heidelberg InnovationLab.
Low Energy Consumption, Simple Component Architecture
Functioning of the display is based on the so-called electrochromic effect of the initial organic material. When voltage is applied, light absorption is modified and the material changes its color. Electrochromic displays have a low energy consumption and simple component architecture compared to commercially available displays, such as LED, LCD, and E-paper. Another advantage is that these displays can be produced by inkjet printing in a customized, inexpensive, and material-efficient way. Moreover, this process is suited for scaling with a high throughput. The materials used mainly are of natural origin or biocompatible. Sealing with gelatine makes the display adhesive and flexible, such that it can be worn directly on the skin.
Use in Medical Diagnostics and Food Packagings
The display is generally suited for short-lifecycle applications in various sectors. In medical diagnostics, for instance, where hygiene plays an important role, sensors and their indicators have to be cleaned or disposed of after use. The newly developed display will not be dumped as electronic scrap, but is compostable. It can also be used for quality monitoring in food packagings, where reuse is not permitted. Digital printing allows the displays to be adapted to persons or complex shapes without any expensive modification of the process. This reduces the consumption of resources.
"As far as we know, this is the first demonstration of a biodegradable display produced by inkjet printing. It will pave the way to sustainable innovations for other electronic components and to the production of eco-friendlier electronics," says Gerardo Hernandez-Sosa, Head of LTI's Printed Electronics Group at the Heidelberg InnovationLab.
Manuel Pietsch, Stefan Schlisske, Martin Held, Noah Strobel, Alexander Wieczorek, Gerardo Hernandez-Sosa: Biodegradable inkjet-printed electrochromic display for sustainable short-lifecycle electronics. Journal of Materials Chemistry, DOI: 10.1039/d0tc04627b
Regina Link, Press Officer, Phone: +49 721 608-41158, Email: firstname.lastname@example.org
Being "The Research University in the Helmholtz Association", KIT creates and imparts knowledge for the society and the environment. It is the objective to make significant contributions to the global challenges in the fields of energy, mobility, and information. For this, about 9,300 employees cooperate in a broad range of disciplines in natural sciences, engineering sciences, economics, and the humanities and social sciences. KIT prepares its 24,400 students for responsible tasks in society, industry, and science by offering research-based study programs. Innovation efforts at KIT build a bridge between important scientific findings and their application for the benefit of society, economic prosperity, and the preservation of our natural basis of life. KIT is one of the German universities of excellence.
[Attachments] See images for this press release:
ELSE PRESS RELEASES FROM THIS DATE:
DALLAS (SMU) - A new study suggests children on the autism spectrum may be more likely to misinterpret healthy arguments between their parents as being negative, compared to children who aren't on the autism spectrum.
That means they may be missing out on an opportunity to learn from their parents how to handle conflict constructively, researchers Naomi Ekas and Chrystyna Kouros said.
"Children can learn how to best handle conflict from watching their parents," said Kouros, associate professor of psychology at SMU (Southern Methodist University). "Seeing parents ...
Manipulating individual electrons with the goal of employing quantum effects offers new possibilities and greater precision in electronics. However, these single-electron circuits are governed by the laws of quantum mechanics, meaning that deviations from error-free operation still occur - albeit (in the best possible scenario) only very rarely. Thus, insights into both the physical origin the and metrological aspects of this fundamental uncertainty are crucial for the further development of quantum circuitry. To this end, scientists from PTB and the University of Latvia have collaborated to develop a statistical testing methodology. Their results have been published in the journal Nature Communications.
Single-electron circuits are already used as electric-current quantum standards and ...
A study performed by the Universitat Oberta de Catalunya (UOC) provided eight recommendations for improving the online technology to help with the treatment and diagnosis of neglected tropical diseases (NTDs). The analysis, presented in a recent open-access publication, was performed by UOC researchers Carme Carrion and Marta Aymerich from the eHealth Lab and Noemí Robles from the eHealth Center, together with José Antonio Ruiz Postigo from the World Health Organization and Oriol Solà de Morales from the Health Innovation Technology Transfer Foundation. In the study, the authors looked at the context of the existing ...
For mice, the earliest social memories can form at three days old and last into adulthood, scientists report on January 26 in the journal Cell Reports. They show that mouse pups prefer their mothers to unfamiliar mouse mothers as newborns and remember them after up to 100 days apart--although they prefer unfamiliar mouse mothers as adults.
"I'm really interested in studying the development of social memory," says first author Blake J. Laham of Princeton University, "which is the memory we have for other individuals including certain facts and features about them." These early ...
Representatives from a network of women deans, chairs and distinguished faculty in biomedical engineering are calling upon the National Institutes of Health and other funding agencies to address disparities in allocating support to Black researchers. The group made the call to action in the Jan. 26, 2021, issue of the journal Cell.
In examining the racial inequities and injustices that prevent Black faculty from equitably contributing to science and achieving their full potential, insufficient federal funding for research by Black scientists rose to the top as a key issue.
According to studies of National Institutes ...
WASHINGTON, January 26, 2021 -- As the pandemic has continued to spread globally, studies indicate the COVID-19 virus may be contained in aerosols that can be generated and spread through breathing, coughing, sneezing, or talking by infected individuals. Researchers are increasingly focused on developing tools and methods to assist in decontaminating surfaces and spaces.
While scientists have previously explored the use of electromagnetic energy to deactivate flu virus in bulk fluids, less work has been done to understand the role of nonionizing radiation, ...
What The Study Did: Survey data from school-age children and adolescents in Guangdong province, China, were used to assess self-reported psychological distress associated with the COVID-19 pandemic.
Authors: Chichen Zhang, M.D., and Ruibin Zhang, Ph.D., of Southern Medical University in Guangzhou, and Xuefeng Yi, M.D., of the Health Publicity and Education Center of Guangdong Province, all in China, are the corresponding authors.
To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/
Editor's Note: The article includes funding/support disclosures. ...
Exposure to antibiotics in the first days of life is thought to affect various physiological aspects of neonatal development. A new study, led by Bar-Ilan University's Azrieli Faculty of Medicine, reveals that antibiotic treatment within 14 days of birth is associated with reduced weight and height in boys - but not girls -- up to the age of six.
By contrast, the study showed significantly higher body mass index (BMI) in both boys and girls following antibiotic use after the neonatal period, and within the first six years of life.
The findings, published in the journal Nature Communications ...
WASHINGTON, January 26, 2021 -- The positions of air inlets and outlets in confined spaces, such as elevators, greatly affect airborne virus transmission. In Physics of Fluids, by AIP Publishing, researchers from University of Nicosia in Cyprus show while air purifiers would be expected to help, they may actually increase the spread.
Air quality in small spaces can quickly degrade without ventilation. However, adding ventilation will increase the rate at which air, possibly laden with viruses, can circulate in the small space. Elevator manufacturers have added air purifiers to take care of ...
An innovative approach to treating bone tumors - starving cancer cells of the energy they need to grow - could one day provide an alternative to a commonly used chemotherapy drug without the risk of severe side effects, suggests a new study from Washington University School of Medicine in St. Louis. Studying human cancer cells and mice, the researchers said that a two-drug combination targeting a tumor's energy sources could be as effective and less toxic than methotrexate, a long-used chemotherapy drug often given in high doses to treat osteosarcoma, a bone cancer.
The study appears Jan. 26 in the journal Cell Reports.
Osteosarcoma is ...
LAST 30 PRESS RELEASES:
[Press-News.org] Biodegradable displays for sustainable electronics
KIT researchers develop biodegradable printed display -- publication in the Journal of Materials Chemistry