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Dec 22, 2024

Unlocking the Brain: Peptide-Guided Nanoparticles Deliver mRNA to Neurons

Posted by in categories: biotech/medical, nanotechnology, neuroscience

Penn Engineers have modified lipid nanoparticles (LNPs) — the revolutionary technology behind the COVID-19 mRNA vaccines — to not only cross the blood-brain barrier (BBB) but also to target specific types of cells, including neurons. This breakthrough marks a significant step toward potential next-generation treatments for neurological diseases like Alzheimer’s and Parkinson’s.

In a new paper in Nano Letters, the researchers demonstrate how peptides — short strings of amino acids — can serve as precise targeting molecules, enabling LNPs to deliver mRNA specifically to the endothelial cells that line the blood vessels of the brain, as well as neurons.

This represents an important advance in delivering mRNA to the cell types that would be key in treating neurodegenerative diseases; any such treatments will need to ensure that mRNA arrives at the correct location. Previous work by the same researchers proved that LNPs can cross the BBB and deliver mRNA to the brain, but did not attempt to control which cells the LNPs targeted.

Dec 22, 2024

Project Hyperion

Posted by in categories: habitats, space travel

Project Hyperion explores the feasibility of crewed interstellar travel via generation ships, using current and near-future technologies. A generation ship is a hypothetical spacecraft designed for long-duration interstellar travel, where the journey may take centuries to complete. The objective of the competition is to design the habitat of the generation ship, including its architecture and society.

Dec 22, 2024

Potential breakthrough as scientists claim two people communicated in their DREAMS in world first

Posted by in categories: innovation, neuroscience

Scientists achieve two-way communication in lucid dreams, unlocking new possibilities in therapy and skill learning.

Dec 22, 2024

GPT-based AI tool predicts inorganic crystal structures

Posted by in categories: particle physics, robotics/AI

CrystaLLM uses GPT to arrange atoms, turning text-based data into numerical tokens.

Dec 22, 2024

The theory of quantum politics

Posted by in categories: quantum physics, space

As the multi-polar world of global politics becomes ever more complex, who better to cast light on its workings than a physicist turned President? Join Armen Sarkissian, former President of Armenia, as he argues for his new theory of quantum politics, in which individuals are necessarily connected across space and our world is dominated by randomness, uncertainty, and possibility.

Dec 22, 2024

Tesla Megapacks to back energy facility in this South American country

Posted by in categories: energy, sustainability

Tesla’s Megapack grid-scale storage systems have been selected for yet another solar energy and storage project, this time set to be installed in Chile.

Chilean energy storage developer Colbún has announced plans to install over 200 Tesla Megapacks as part of the 228 MW/912 MWh Celda Solar project in the northern part of the country, as detailed in a press release shared this week. The site will be constructed in the Camarones, Arica and Parinacota region, and the company estimates the total cost to be around $260 million.

“Energy storage will play an increasing role in the Chilean electricity system, allowing solar energy generated during the day to be accumulated and supplied to the system at night,” writes José Ignacio Escobar, Colbún CEO, as translated into English from Spanish. “Our energy stored in the reservoirs in the south complements perfectly with the energy that we will store in our batteries in the north, thus having a safe, diversified and competitive offer for our clients from Arica to Puerto Montt.”

Dec 22, 2024

Microsoft Has Purchased Nearly 500k Nvidia Hopper GPUs For AI Acceleration In 2024

Posted by in category: robotics/AI

Microsoft leads the AI GPU race, purchasing nearly 500k NVIDIA Hopper GPUs in 2024, while other tech giants also invest heavily in AI.

Dec 22, 2024

CERN’s Large Hadron Collider finds the heaviest antimatter particle yet

Posted by in category: particle physics

Scientists from the ALICE (A Large Ion Collider Experiment) at CERN’s Large Hadron Collider reported evidence of a new antimatter particle called antihyperhelium-4, essentially the “evil twin” of another weird particle called hyperhelium-4. This incredibly exotic form of matter contains two antiprotons, an antineutron, and an unstable particle called an antilambda comprised of subatomic quarks.

Dec 22, 2024

ASUS chairman: we are working on a humanoid robot, will fight Elon Musk’s Tesla Optimus robot

Posted by in categories: Elon Musk, robotics/AI

ASUS chairman Jonney Shih said the development of its first humanoid robot is already underway, wouldn’t be the first robot: ASUS has its Zenbo already.

Dec 22, 2024

Saturn’s rings could be much older than scientists first thought

Posted by in categories: computing, space

However, “the idea that Saturn’s rings are young seemed very strange in the context of the solar system’s long evolutionary history,” study lead author Ryuki Hyodo, a planetary scientist at the Institute of Science Tokyo, told Space.com. “A few million years ago is the time of the dinosaurs on Earth. This would mean that the solar system was already well-established and relatively stable.”

In contrast, when Saturn formed about 4.5 billion years ago, or during the era called the Late Heavy Bombardment about 4 billion years ago, “the solar system was far more chaotic,” Hyodo said. “Many large planetary bodies were still migrating and interacting, greatly increasing the chances of a significant event that could have led to the formation of Saturn’s rings.”

To shed light on the age of Saturn’s rings, in the new study, Hyodo and his colleagues developed 3D computer models simulating crashes between micrometeoroids and the rings. These impacts typically occur at speeds of about 67,100 mph (108,000 km/h), they said.

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