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Archive for the ‘materials’ category: Page 21

Jan 17, 2024

The surface knows what lies beneath: Physicists show how to detect higher-order topological insulators

Posted by in categories: materials, physics

Just like a book can’t be judged by its cover, a material can’t always be judged by its surface. But, for an elusive conjectured class of materials, physicists have now shown that the surface previously thought to be “featureless” holds an unmistakable signature that could lead to the first definitive observation.

Higher-order , or HOTIs, have attracted attention for their ability to conduct electricity along one-dimensional lines on their surfaces, but this property is quite difficult to experimentally distinguish from other effects. By instead studying the interiors of these materials from a , a team of physicists has identified a signature that is unique to HOTIs that can determine how light reflects from their surfaces.

As the team reports in the journal Nature Communications, this property could be used to experimentally confirm the existence of such topological states in real materials.

Jan 16, 2024

Moiré material makes a synaptic transistor for neuromorphic computing

Posted by in categories: computing, materials

New device can recognize similar patterns and operates at room temperatures.

Jan 15, 2024

Chinese-developed nuclear battery has a 50-year lifespan — Betavolt BV100 built with Nickel-63 isotope and diamond semiconductor material

Posted by in categories: materials, nuclear energy

The design uses China’s first diamond semiconductor material.

Jan 15, 2024

Watch: Plant caught on cam ‘talking’ to neighbouring plant in groundbreaking study

Posted by in category: materials

Just like humans, plants also communicate with each other as soon as any danger or attack is detected in their neighbourhood. Scientists know about this phenomenon since the 1980s, having identified at least 80 species who act in their defence in crisis situations. However, it was still shrouded in mystery as to how exactly plants receive such danger signals from their neighbours.

Now, a team of Japanese scientists has not just solved this puzzle but also filmed the communication among plants in an amazing video. In a study published in Nature Communications, molecular biologists at Saitama University in Japan, Yuri Aratani and Takuya Uemura, demonstrated how these plants behave upon detecting danger.

Continue reading “Watch: Plant caught on cam ‘talking’ to neighbouring plant in groundbreaking study” »

Jan 14, 2024

Back UK creative sector or gamble on AI, Getty Images boss tells Sunak

Posted by in categories: materials, robotics/AI

Rishi Sunak needs to decide whether he wants to back the UK’s creative industries or gamble everything on an artificial intelligence boom, the chief executive of Getty Images has said.

Craig Peters, who has led the image library since 2019, spoke out amid growing anger from the creative and media sector at the harvesting of their material for “training data” for AI companies. His company is suing a number of AI image generators in the UK and US for copyright infringement.

Jan 14, 2024

Revolutionary MIT tech traps water micropollutants like magnets

Posted by in categories: chemistry, materials

Chemical engineers at MIT have developed a hydrogel system using zwitterionic materials for efficient water treatment in just one step, with minimal impact on the environment.

Jan 14, 2024

No more heat: a new study shows some innovative strategies to beat heat

Posted by in categories: innovation, materials

Advanced cooling technologies and reflective materials could slash temperatures in Riyadh by 4.5°C.


Explore the research unlocking ways to cool one of the world’s hottest cities – Riyadh – using ‘super cool’ building materials and irrigated greenery.

Jan 12, 2024

New Neural Implant Unlocks Deep Brain Activity

Posted by in categories: materials, neuroscience

Summary: Researchers create a transparent graphene-based neural implant offering high-resolution brain activity data from the surface. The implant’s dense array of tiny graphene electrodes enables simultaneous recording of electrical and calcium activity in deep brain layers.

This innovation overcomes previous implant limitations and offers insights for neuroscientific studies. The transparent design allows optical imaging alongside electrical recording, revolutionizing neuroscience research.

Jan 11, 2024

AI makes new material that could dramatically change how batteries work

Posted by in categories: materials, robotics/AI

Microsoft systems were able to scan through 32 million potential batteries, company says.

Jan 11, 2024

Unveiling the Dance of Noble Gas Atoms: Imaging Breakthrough at the University of Vienna

Posted by in categories: materials, particle physics

Like several scientific discoveries, the researchers stumbled upon this result accidentally while conducting experiments irradiating graphene when they found that irradiated noble gases became trapped between two sheets of graphene, which results in the graphene forming small pockets where the atoms of the gases coalesce into small groups of atoms.

“We used scanning transmission electron microscopy to observe these clusters, and they are really fascinating and a lot of fun to watch,” said Manuel Längle, who is a PhD student at the University of Vienna and lead author of the study. “They rotate, jump, grow and shrink as we image them. Getting the atoms between the layers was the hardest part of the work. Now that we have achieved this, we have a simple system for studying fundamental processes related to material growth and behavior.”

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