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Phys.org / Smart hydrogels act as 'micromachines' to squeeze and study living cells

Within tissues, cells are embedded in complex, three-dimensional structures known as the extracellular matrix. Their biomechanical interactions play a crucial role in numerous biological processes. Scientists at the Max Planck ...

9 hours ago in Biology
Phys.org / Sunlight, water and air power a cleaner method for making hydrogen peroxide

Cornell scientists have discovered a potentially transformative approach to manufacturing one of the world's most widely used chemicals—hydrogen peroxide—using nothing more than sunlight, water and air. The research is ...

10 hours ago in Chemistry
Phys.org / Alaknanda: JWST discovers massive grand-design spiral galaxy from the universe's infancy

A spiral galaxy, shaped much like our Milky Way, has been found in an era when astronomers believed such well-formed galaxies could not yet exist. Two astronomers from India have identified a remarkably mature galaxy just ...

17 hours ago in Astronomy & Space
Phys.org / Fossil hunters find tracks of animals from about 3 million years ago, a first in South Africa

South Africa is well known for its fossil heritage, a record of plants and animals that tells us what the world was like long ago.

5 hours ago in Biology
Medical Xpress / The high cost of delay: Study reveals health and financial risks of missed HepB vaccine

This week the Advisory Committee on Immunization Practices (ACIP) will consider delaying the infant hepatitis B (HepB) birth dose vaccine schedule. However, new research from Portland State University shows that even a short ...

5 hours ago in Pediatrics
Phys.org / Astronomers confirm low-luminosity active galactic nucleus in nearby galaxy NGC 3221

Using ESA's XMM-Newton satellite, astronomers from Stanford University and elsewhere have conducted deep X-ray observations of a nearby galaxy known as NGC 3221. The new observational campaign detected a faint active galactic ...

17 hours ago in Astronomy & Space
Phys.org / New palladium-gold alloy catalyst boosts methane-to-ethylene conversion with solar power

Researchers just hit two benefits with one catalyst. They converted methane (CH4), a potent greenhouse gas, into ethylene (C2H4), a highly demanded raw material in industrial sectors, using sunlight and a newly designed palladium–gold ...

17 hours ago in Chemistry
Phys.org / New levitating sensors could pave way to dark matter detection and quantum sensing

A new type of sensor that levitates dozens of glass microparticles could revolutionize the accuracy and efficiency of sensing, laying the foundation for better autonomous vehicles, navigation and even the detection of dark ...

11 hours ago in Physics
Phys.org / DNA from soil could soon reveal who lived in ice age caves

The last two decades have seen a revolution in scientists' ability to reconstruct the past. This has been made possible through technological advances in the way DNA is extracted from ancient bones and analyzed.

6 hours ago in Biology
Phys.org / Emissions from global wildfires far higher than previously thought

The total emissions of greenhouse gases and airborne particles caused by wildfires are almost 70% higher than previously assumed. Researchers at Wageningen University & Research discovered this in a long-term study conducted ...

10 hours ago in Earth
Phys.org / Tracking forever chemicals across food web shows not all isomers are distributed equally

When University at Buffalo chemists analyzed samples of water, fish, and bird eggs, they weren't surprised to find plenty of per- and polyfluoroalkyl substances (PFAS). After all, these "forever chemicals" turn up nearly ...

10 hours ago in Chemistry
Phys.org / Zapping stem cells could boost growth of new tissues and organs

Scientists in Melbourne have discovered how tiny electrical pulses can steer stem cells as they grow, opening the door to new improved ways of creating new tissues, organs, nerves and bones.

10 hours ago in Biology