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May 10, 2024

High Pressures Reveal Novel Structural Features in Proteins

Posted by in category: chemistry

A pressure of 3,000 bar is applied to the cold shock protein B of Bacillus subtilis in a small tube in the NMR spectroscopy laboratory at the University of Konstanz. This is roughly three times the water pressure at the deepest point of the ocean. The pressure is so intense that the highly dynamic protein shows structural features that would not be sufficiently visible under normal pressure. But why do scientists apply such high pressure, which does not occur anywhere else on our planet under natural conditions? The answer is: To study processes and properties that are too volatile to be observed under normal conditions.

“This high pressure allows us to make states visible that actually do exist at 1 bar, but which we can only observe directly at 3,000 bar”, explains Frederic Berner, University of Konstanz. Literally “under high pressure”, the doctoral researcher investigates the properties of a protein determined by its structure, and how changes in the structure in turn influence its properties. In the research group Physical Chemistry and Nuclear Magnetic Resonance at the University of Konstanz, led by Michael Kovermann, he recently implemented a new method for analyzing the structural properties of proteins at 3,000 bar with as little influence as possible from surrounding effects. The two researchers now present their new methodological approach in the journal Angewandte Chemie International Edition.

May 10, 2024

Scientists Discover First-of-Its-Kind Molecule That Absorbs Greenhouse Gasses

Posted by in categories: materials, sustainability

A ‘cage of cages’ is how scientists have described a new type of porous material, unique in its molecular structure, that could be used to trap carbon dioxide and another, more potent greenhouse gas.

Synthesized in the lab by researchers in the UK and China, the material is made in two steps, with reactions assembling triangular prism building blocks into larger, more symmetrical tetrahedral cages – producing the first molecular structure of its kind, the team claims.

The resulting material, with its abundance of polar molecules, attracts and holds greenhouse gasses such as carbon dioxide (CO2) with strong affinity. It also showed excellent stability in water, which would be critical for its use in capturing carbon in industrial settings, from wet or humid gas streams.

May 10, 2024

Australian Startup Mimics Trees to Make Cheaper Green Hydrogen

Posted by in category: energy

Hysata raised $111 million from investors including BP to scale its technology, which could help lower the cost of the clean-burning fuel.

May 10, 2024

China’s Astribot S1 shocks the world with human-like moves

Posted by in category: robotics/AI

The Astribot S1 has shocked the tech world with its uncanny ability to move like a real person.

If you weren’t wary of robots before, you might soon find yourself reconsidering.

Continue reading “China’s Astribot S1 shocks the world with human-like moves” »

May 10, 2024

Chinese humanoid factory video plunges back into the uncanny valley

Posted by in categories: cyborgs, robotics/AI

A 20-second video from inside a Chinese humanoid robot factory is causing some consternation today around social media. It shows a range of highly realistic-looking, partially skinned humanoids under construction.

The video, uploaded by user ‘meimei4515,’ is uncredited, but shows several moving androids with human-like hair and skin – in stark contrast to most of the general-purpose humanoids we’d normally cover, which are designed to look like robots, rather than trying to fool anyone.

Continue reading “Chinese humanoid factory video plunges back into the uncanny valley” »

May 10, 2024

Consciousness Could Hinge on How Your Brain Handles Metals, Scientists Say

Posted by in category: neuroscience

New research reveals the potential link between memory formation and elemental interactions in the mind.

May 10, 2024

476,000-year-old ancient woodworking discovery rewrites history • Earth

Posted by in category: futurism

The archaeological landscape is rarely static. Discoveries continuously shift our understanding of the past, forcing us to redraw the boundaries of what we thought was possible or likely. A recent find on ancient woodworkings at Kalambo Falls, Zambia, is a prime example – it introduces us to early hominin builders with unexpected skills, operating long before the rise of Homo sapiens.

The unique conditions at Kalambo Falls were instrumental in the extraordinary preservation of ancient woodworking artifacts.

The site’s lush vegetation, sustained by a reliable water source, provided the necessities of life, making it a consistently appealing location for various hominin species across vast stretches of time. This long-term occupation increased the likelihood of artifacts being left behind.

May 10, 2024

MIT 6.S191: Recurrent Neural Networks, Transformers, and Attention

Posted by in categories: materials, robotics/AI

Borophene is already thinner and more conductive than graphene, and scientists have altered it to make it even more special.

May 10, 2024

New research shows microevolution can be used to predict how evolution works on much longer timescales

Posted by in category: evolution

Ever since Charles Darwin published his landmark theory of how species evolve, biologists have been fascinated with the intricate mechanisms that make evolution possible.

May 10, 2024

Wonder material “more remarkable” than graphene has medical potential

Posted by in categories: biotech/medical, materials

Borophene is already thinner and more conductive than graphene, and scientists have altered it to make it even more special.

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