In a step toward nanofluidic-based neuromorphic – or brain-inspired – computing, EPFL engineers have succeeded in executing a logic operation by connecting two chips that use ions, rather than electrons, to process data. Memory, or the ability to store information in a readily accessible way, is an essential operation in computers and human brains. A key difference is that while brain information processing involves performing computations directly on stored data, computers shuttle data back and forth between a memory unit…
There are large accumulations of plastics in the ocean, even outside so-called garbage patch. A UFZ study reveals microplastics in remote marine protected area. “Plastics in the ocean are a serious problem. Every year, millions of tonnes of plastics end up in the ocean via rivers and wind as well as from shipping and fishing – and it remains there. It is still difficult to assess the consequences for the ocean ecosystem”, says UFZ environmental chemist Prof Annika Jahnke, coordinator…
Room-temperature, ambient-pressure conversion reaction for carbon monoxide could be part of a larger cascade strategy for efficiently turning atmospheric carbon dioxide (CO2) into liquid fuel. Scientists at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory and the University of North Carolina Chapel Hill (UNC) have demonstrated the selective conversion of carbon dioxide (CO2) into methanol using a cascade reaction strategy. The two-part process is powered by sunlight, occurs at room temperature and at ambient pressure, and employs a recyclable…
Researchers at Stanford have designed a spring-assisted actuator – a device that can accomplish dynamic tasks using a fraction of the energy previously required. Whether it’s a powered prosthesis to assist a person who has lost a limb or an independent robot navigating the outside world, we are asking machines to perform increasingly complex, dynamic tasks. But the standard electric motor was designed for steady, ongoing activities like running a compressor or spinning a conveyor belt – even updated designs…
In a new Nature study, Columbia Engineering researchers have built a photonic chip that is able to produce high-quality, ultra-low-noise microwave signals using only a single laser. The compact device — a chip so small, it could fit on a sharp pencil point — results in the lowest microwave noise ever observed in an integrated photonics platform. The achievement provides a promising pathway towards small-footprint ultra-low-noise microwave generation for applications such as high-speed communication, atomic clocks, and autonomous vehicles. The challenge…
Cellulose, abundantly available from plant biomass, can be converted into molecules used to make a new class of recyclable polymers, to sustainably replace some plastics. Researchers at Hokkaido University have taken a significant step forward in the drive to make recyclable yet stable plastics from plant materials. This is a key requirement to reduce the burden of plastic pollution in the environment. They developed a convenient and versatile method to make a variety of polymers from chemicals derived from plant…
Researchers at the University of Bayreuth have synthesized unique scandium polynitrides under extreme conditions, with exotic chemistry and potential applications as high-energy-density materials. Their results are published in the “Nature Communications” journal. High-energy density materials (HEDMs) are pivotal in various applications due to their superior energetic performance, which includes high detonation velocity, detonation pressure, and energy storage capacity. Their application in space exploration as rocket propellants and in defense as explosives is of critical importance for modern society. The unique…
… under mixed friction thanks to innovative thinfilm multisensor. The measurement of pressure and temperature plays a crucial role in various technical applications from rolling bearings to gears and seals. In particular, there have been no solutions to date for measurements under mixed friction, i. e. the simultaneous occurrence of liquid and solid friction. At the Hannover Messe from April 22 – 26, 2024, the Fraunhofer Institute for Surface Engineering and Thin Films IST will be presenting a newly developed thin-film…
Results suggest the clouds of Venus could be hospitable for some forms of life. If there is life in the solar system beyond Earth, it might be found in the clouds of Venus. In contrast to the planet’s blisteringly inhospitable surface, Venus’ cloud layer, which extends from 30 to 40 miles above the surface, hosts milder temperatures that could support some extreme forms of life. If it’s out there, scientists have assumed that any Venusian cloud inhabitant would look very…
Research team led by Göttingen University make extremely fast, precise images for first time. From solar panels on our roofs to the new OLED TV screens, many everyday electronic devices simply wouldn’t work without the interaction between light and the materials that make up semiconductors. A new category of semiconductors is based on organic molecules, which largely consist of carbon, such as buckminsterfullerene. The way organic semiconductors work is largely determined by their behaviour in the first few moments after…
Scientists have developed an ingestible capsule dotted with sensors that can detect pressure in a patient’s guts and detect points of failure. The ingestible system will give colorectal medical teams an unprecedented understanding of the movement of a patient’s digestive tract, or lack thereof. Instead of simply taking images of inside the guts, the system will sense whether it’s contracting, how much pressure is exerted and exactly where it might be inactive. The system has been tested in a synthetic…
This could be forever… Thanks for a new design contributed by a research team led by Prof. ZHAO Peng from Hefei Institutes of Physical Science (HFIPS) of Chinese Academy of Sciences (CAS), the operation time for plasma torch was extended from several days to several years. “We made the world’s longest-lasting plasma torch,” said Prof. ZHAO. Plasma torches, devices that generate thermal plasma, are pivotal in various industries due to their ability to efficiently produce high-temperature plasma. It can be…
A new Denial-of-Service (DoS) attack targets application-layer protocols that draw on the User Datagram Protocol (UDP) for end-to-end communication. ‘Application-layer Loop DoS Attacks’ pair servers of these protocols in such a way that they communicate with each other indefinitely. The vulnerability affects both legacy (e.g., QOTD, Chargen, Echo) and contemporary (e.g., DNS, NTP, and TFTP) protocols. Discovered by researchers of the CISPA Helmholtz-Center for Information Security, the attack puts an estimated 300,000 Internet hosts and their networks at risk. The…
The curvature of a surface determines the migration behavior of biological cells. They preferentially move along valleys or grooves while avoiding ridges. These findings with contribution from the Max Planck Institute for Dynamics and Self-Organization (MPI-DS) and the Weizmann Institute of Science gave rise to a model predicting cellular behavior. Such universal principles now allow a better understanding of the migration of immune and cancer cells, paving the way for new treatment options. Cell migration within the body is a…
In nerve cells, the hormone regulates whether mitochondria are shut down or kept running. The hormone insulin controls many cellular processes and adapts them to the body’s current energy supply. One of the insulin-regulated processes is the quality control of cellular power plants in neurons, Angelika Harbauer and her team at the Max Planck Institute for Biological Intelligence discovered. When sufficient energy is available in the body, insulin facilitates the elimination of defective mitochondria. When energy is scarce or when…
Results enable research on better breast cancer treatment options. Cell lines are an important in vitro model in breast cancer research. A team around biochemist Dr. Sonja Eberth and bioinformatician Dr. Claudia Pommerenke from the Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures GmbH (Braunschweig, Germany) has extensively characterized the molecular properties of the breast cancer cell lines from the institute’s collection. The results of the study, recently published in the renowned journal Cells, allow the individual breast cancer…
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