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Dec 24, 2024

Scientists discover a ‘Goldilocks’ zone for DNA organization, opening new doors for drug development

Posted by in categories: biotech/medical, genetics

In a discovery that could redefine how we understand cellular resilience and adaptability, scientists at Scripps Research have unlocked the secret interactions between a primordial inorganic polymer of phosphate known as polyphosphate (polyP), and two basic building blocks of life: DNA and the element magnesium. These components formed clusters of tiny liquid droplets–also known as condensates–with flexible and adaptable structures.

PolyP and magnesium are involved in many biological processes. Thus, the findings could lead to new methods for tuning cellular responses, which could have impactful applications in translational medicine.

The ensuing study, published in Nature Communications on October 26, 2024, reveals a delicate “Goldilocks” zone—a specific magnesium concentration range—where DNA wraps around polyP-magnesium ion condensates. Similar to a thin eggshell covering a liquid-like interior, this seemingly simple structure may help cells organize and protect their genetic material.

Dec 24, 2024

Long COVID: SARS-CoV-2 Spike Protein Accumulation Linked to Long-lasting Brain Effects

Posted by in categories: biotech/medical, neuroscience

Researchers from Helmholtz Munich and Ludwig-Maximilians-Universität (LMU) have identified a mechanism that may explain the neurological symptoms of long COVID.

The study shows that the SARS-CoV-2 spike protein remains in the brain’s protective layers, the meninges, and the skull’s bone marrow for up to four years after infection. This persistent presence of the spike protein could trigger chronic inflammation in affected individuals and increase the risk of neurodegenerative diseases.

The team, led by Prof. Ali Ertürk, Director at the Institute for Intelligent Biotechnologies at Helmholtz Munich, also found that mRNA COVID-19 vaccines significantly reduce the accumulation of the spike protein in the brain. However, the persistence of spike protein after infection in the skull and meninges offers a target for new therapeutic strategies.

Dec 24, 2024

Artificial Intelligence Startups Attracted 25% Of Europe’s Venture Capital Funding

Posted by in categories: finance, robotics/AI

Venture funding into Europe is heading for a flat year, but this may obfuscate the fact that European AI startups are thriving.

Dec 24, 2024

Quantum correlations could solve the black hole information paradox

Posted by in categories: cosmology, quantum physics

The black hole information paradox has puzzled physicists for decades. New research shows how quantum connections in spacetime itself may resolve the paradox, and in the process leave behind a subtle signature in gravitational waves.

For a long time we thought black holes, as mysterious as they were, didn’t cause any trouble. Information can’t be created or destroyed, but when objects fall below the event horizons, the information they carry with them is forever locked from view. Crucially, it’s not destroyed, just hidden.

Continue reading “Quantum correlations could solve the black hole information paradox” »

Dec 24, 2024

Astronomers say they found a tunnel connecting our solar system to other stars

Posted by in categories: cosmology, materials

Astronomers have made a startling discovery. Using data from the eRosita X-ray instrument, researchers say they’ve discovered a “cosmic tunnel” that connects our solar system to other stars.

Scientists have long known that our solar system exists in a Local Hot Bubble. This bubble is believed to have formed following several supernovas over the past several million years and is estimated to be around 300 light-years across.

Using data from the eRosita, researchers from the Max Planck Institute say they found evidence of a cosmic tunnel stretching from our solar system out toward the Centaurus constellation. The tunnel appears to move through the material that makes up the Local Hot Bubble.

Dec 24, 2024

Revolutionizing Clean Energy: Researchers Develop Breakthrough Hydrogen Nanoreactor

Posted by in categories: biological, engineering, solar power, sustainability

The University of Liverpool has created a hybrid nanoreactor that uses sunlight to produce hydrogen efficiently, offering a sustainable and cost-effective alternative to traditional photocatalysts.

The University of Liverpool has announced a major breakthrough in engineering biology and clean energy. Researchers have developed a groundbreaking light-powered hybrid nanoreactor that combines the natural efficiency of biological processes with the precision of synthetic design to produce hydrogen, a clean and renewable energy source.

Detailed in ACS Catalysis, the study introduces an innovative solution to a longstanding challenge in solar energy utilization for fuel production. While nature’s photosynthesis systems excel at harnessing sunlight, artificial systems have historically fallen short. This new approach to artificial photocatalysis represents a significant step forward in bridging that performance gap.

Dec 24, 2024

Filter Made From Squid Bone Could Be The Solution to Microplastics

Posted by in categories: materials, sustainability

Sadly, we know that microplastics are getting everywhere, including our drinking water – but researchers have developed a new way to tackle the problem: a filter made of a rather unusual combination of material, which is able to remove up to 99.9 percent of tiny plastic fragments from water.

The researchers, led by a team from Wuhan University in China, combined both chitin (derived from squid bone) and cellulose (derived from cotton) for their ‘Ct-Cel’ foam filter. Both materials are found in abundance in nature, cheap to adapt, and sustainable.

They then tested their filter against numerous different types of plastic, finding it did an excellent job with a wide variety of fragment sizes and plastic types – including some of those most commonly seen in microplastic pollution.

Dec 24, 2024

Aurora alert: Geomagnetic storm could spark northern lights in upper Midwest skies this Christmas

Posted by in category: futurism

Aurora chasers are on high alert for minor geomagnetic storm conditions on Dec. 25. Northern lights could be visible over some northern and upper Midwest states.

Dec 24, 2024

The Universe Is Teeming With Complex Organic Molecules

Posted by in category: alien life

Wherever astronomers look, they see life’s raw materials—and hints at answers to one of the great mysteries of science.

Dec 24, 2024

Why scientists say we are fighting H5N1 bird flu with one hand tied behind our backs

Posted by in categories: biological, biotech/medical, government

But when, where and how that could come to pass is hard to predict — in part, some researchers say, because of guardrails the federal government has placed around gain-of-function research.

The term describes experiments that seek to understand a virus’ potential to adapt to new hosts, spread more easily, survive longer in the environment and cause those infected to become sicker. Though many scientists view the approach as a critical tool for conducting biological research, other experts have long complained that it’s unacceptably risky — a reputation exacerbated by persistent speculation that the virus responsible for the COVID-19 pandemic was created in gain-of-function experiments in a laboratory in Wuhan, China.

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