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May 8, 2024

Team describes MXene-supported PtCo bimetallic catalyst for hydrogen evolution in acidic conditions

Posted by in category: energy

Hydrogen energy is considered a promising solution with high energy density and zero pollution emissions. Currently, hydrogen is mainly derived from fossil fuels, which increases energy consumption and greenhouse gas emissions, hindering efforts to achieve carbon neutrality goals.

May 8, 2024

Nanotech opens door to future of insulin medication

Posted by in categories: biotech/medical, nanotechnology

An international team, led by researchers from Australia, have developed a system using nanotechnology that could allow people with diabetes to take oral insulin in the future. The researchers say the new insulin could be eaten by taking a tablet or even embedded within a piece of chocolate.

May 8, 2024

Ultrathin samples with surface phonon polariton enhance photoinduced dipole force

Posted by in categories: bioengineering, chemistry

A new study has been led by Prof. Xing-Hua Xia (State Key Lab of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University). While analyzing the infrared photoinduced force response of quartz, Dr. Jian Li observed a unique spectral response that is different from the far field infrared absorption spectrum.

May 8, 2024

Aligned peptide ‘noodles’ could enable lab-grown biological tissues

Posted by in categories: bioengineering, biotech/medical

A team of chemists and bioengineers at Rice University and the University of Houston have achieved a significant milestone in their work to create a biomaterial that can be used to grow biological tissues outside the human body.

May 8, 2024

CRISPR Enzyme Found in Metagenomic Study Is Tiny, Yet Active and Precise

Posted by in categories: bioengineering, biotech/medical, computing, genetics, health

The results of a metagenomic study from the University of Trento suggest that the CRISPR toolbox will need to make room for another CRISPR enzyme. The disruption should be minimal because the newly identified enzyme is unusually compact. It consists of just over 1,000 amino acids. And yet it is also strongly active and highly precise. The hope is that it can be packaged with guide RNA within the tight quarters afforded by adeno-associated virus (AAV) vectors, and thereby expand the use of in vivo gene editing in therapeutic applications.

The study was led by Anna Cereseto, PhD, and Nicola Segata, PhD, of the department of cellular, computational, and integrative biology. Cereseto leads a laboratory that develops advanced genome editing technologies and their application in the medical sector. Segata is the head of a laboratory of metagenomics, where he studies the variety and characteristics of the human microbiome and its role in health. Their collaboration has led to the identification, in a bacterium of the intestine, of new CRISPR-Cas9 molecules that could have a clinical potential to treat genetic diseases.

Detailed findings from the study recently appeared in Nature Communications, in an article titled, “CoCas9 is a compact nuclease from the human microbiome for efficient and precise genome editing.”

May 8, 2024

Making genome editing a success story in Africa

Posted by in category: biotech/medical

Nature Biotechnology volume 42, pages 551–554 (2024) Cite this article.

May 8, 2024

How quantum physics could ‘revolutionise everything’

Posted by in categories: computing, quantum physics

From unhackable communication networks to powerful computers, quantum technology promises huge advances.

May 8, 2024

Near collapse of Earth’s magnetic field 591 million years ago may have allowed complex life to thrive

Posted by in categories: particle physics, space

Earth’s magnetic field plays a key role in making our planet habitable. The protective bubble over the atmosphere shields the planet from solar radiation, winds, cosmic rays and wild swings in temperature.

However, Earth’s magnetic field almost collapsed 591 million years ago, and this change, paradoxically, may have played a pivotal role in the blossoming of complex life, new research has found.

“In general, the field is protective. If we had not had a field early in Earth history water would have been stripped from the planet by the solar wind (a stream of energized particles flowing from the sun toward Earth),” said John Tarduno, a professor of geophysics at the University of Rochester in New York and senior author of the new study.

May 8, 2024

New NASA Black Hole Visualization Takes Viewers Beyond the Brink

Posted by in categories: cosmology, mathematics

“People often ask about this, and simulating these difficult-to-imagine processes helps me connect the mathematics of relativity to actual consequences in the real universe,” said Jeremy Schnittman, an astrophysicist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, who created the visualizations. “So I simulated two different scenarios, one where a camera — a stand-in for a daring astronaut — just misses the event horizon and slingshots back out, and one where it crosses the boundary, sealing its fate.”

May 8, 2024

Scientists are starting to decode what sperm whales are saying

Posted by in category: futurism

Researchers have discovered a kind of “sperm whale phonetic alphabet” embedded in the strings of “click” sounds the whales use to communicate and hunt.

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