Quantum computing firm D-Wave says its machines are the first to achieve “computational supremacy” by solving a practically useful problem that would otherwise take millions of years on an ordinary supercomputer.
The electrocatalytic nitric oxide reduction reaction (NORR) has attracted significant attention as an ecofriendly alternative to the conventional Haber–Bosch process for producing ammonia (NH3). However, the poor selectivity to NH3 and low catalyst stability under harsh conditions are great challenges in NORR. Herein, the core–shell structure of nickel nanoparticles enclosed with a nitrogen-doped carbon layer (Ni@NC) electrocatalyst derived from covalent organic frameworks is employed for high performance in NORR. The Ni@NC-700 achieved the highest FENH3 of 82.94% with an NH3 yield rate of 19.00 μmol cm–2 h–1 at 0.16 V (vs reversible hydrogen electrode) in a 0.1 M HClO4 electrolyte. Control experiments revealed that nickel nanoparticles (Ni NPs) acted as active centers in Ni@NC for efficient production of NH3. The ideal carbon shell protection of Ni NPs and the high inherent catalytic TOF of Ni@NC-700 revealed a promising candidate for an efficient NORR electrocatalyst. The stability test demonstrated the remarkable stability of Ni@NC. The Ni NPs were protected by carbon nanostructures resembling core–shell catalysts, preventing metal dissolution during rough electrolysis.
In a collaboration with Kyushu University, a team of Harvard University scientists says their new research into the ability to regrow lost limbs sets the stage’ for proper limb regeneration.
Of course, some animals, including amphibians, can regrow a lost arm or leg, but the team behind this latest research hopes to bring that ability to humans who hope to regrow lost limbs.
The researchers also say this process could facilitate the growing of limbs in animals that lost them to evolution, such as snakes.
Bioresorbable neural implants offer a promising solution to the challenges of secondary surgeries required for the removal of implanted devices. Here, the authors introduce a fully bioresorbable flexible hybrid opto-electronic system for simultaneous electrophysiological recording and optogenetic stimulation.
Nihilistic Aliens
Posted in alien life, media & arts
Many doubt whether existence has any purpose or meaning, but could entirely civilizations become nihilistic. Would this spell their doom? And if not, what would they be like?
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Episode 423b; December 3, 2023
Produced, Written \& Narrated by: Isaac Arthur.
Editor: Donagh Broderick.
Music Courtesy of: Steve Cardon.
The Neurorights Foundation
Posted in neuroscience
New article from the International Bar Association @IBAnews on Neurorights and the various ethical considerations involved with neurotechnology. Read here: https://www.ibanet.org/neurotechnologies-protection-against-…ata— The NeuroRights Foundation (@neuro_rights) October 30, 2023.
The story of how life started on Earth is one that scientists are eager to learn. Researchers may have uncovered an important detail in the plot of chapter one: an explanation of how bubbles of fat came to form the membranes of the very first cells.
A key part of the new findings, made by a team from The Scripps Research Institute in California, is that a chemical process called phosphorylation may have happened earlier than previously thought.
This process adds groups of atoms that include phosphorus to a molecule, bringing extra functions with it – functions that can turn spherical collections of fats called protocells into more advanced versions of themselves, able to be more versatile, stable, and chemically active.
Using lipid nanoparticles (LNPs), engineers have successfully delivered genetic material to the lung that suppresses lung tumors in mice.
Quantum traffic laws applied to the 3D streetscape of a specific kind of crystal can put the brakes on electron rush hour.
In a search for novel materials that can contain bizarre new states of matter, physicists from Rice University in the US led an experiment that forced free-roaming electrons to stay in place.
While the phenomenon has been seen in materials where electrons are constrained to just two dimensions, this is the first time it’s been observed in a three-dimensional crystal metal lattice, known as a pyrochlore. The technique gives researchers a new tool for studying the less conventional activities of plucky, charge-carrying particles.
Cancer survivor, Gail Baron Simpson, shares her personal journey to treatment success in this in-depth interview with Precision Oncology specialist and CTOAM co-founder, Alex Rolland, and Michelle Morand, Precision Cancer Medicine Advocacy specialist and CTOAM co-founder.
Please watch our short intro video to Gail’s story first! 👉 • Introduction to Gail’s Incredible Can…
After being diagnosed with a rare orphan cancer, Gail discusses her experience with navigating the challenges of standard healthcare and her decision to hire CTOAM to help integrate Precision Cancer Medicine into her cancer care – and how she was able to advocate for the right treatment and eventually find success.