Phys.org news

Phys.org / Lab-made sugar-coated particle reduces COVID-19 infection rates by 98.6% in human cell tests

Research led by a Swansea University academic has revealed a synthetic glycosystem—a sugar-coated polymer nanoparticle—that can block COVID-19 from infecting human cells, reducing infection rates by nearly 99%.

Aug 11, 2025 in Nanotechnology
Phys.org / AI automatically designs optimal drug candidates for cancer-targeting mutations

Traditional drug development methods involve identifying a target protein (e.g., a cancer cell receptor) that causes disease, and then searching through countless molecular candidates (potential drugs) that could bind to ...

Aug 11, 2025 in Chemistry
Phys.org / How organic matter traps water in soil—even in the driest conditions

From lifelong farmers to backyard gardeners, most plant-lovers know that adding organic matter to a field, vegetable plot or flowerpot increases the soil's moisture. Now, for the first time, Northwestern University scientists ...

Aug 11, 2025 in Earth
Phys.org / Ocean anomalies traveling north crucial for the Atlantic Meridional Overturning Circulation

Anomalies in temperature and salinity that originate in the midlatitude North Atlantic can affect the Atlantic Meridional Overturning Circulation (AMOC) in the Nordic Seas up to a decade later. A new study published in Communications ...

Aug 11, 2025 in Earth
Phys.org / Unpacking chaos to protect coffee: Study untangles the ecological dynamics of ants in Puerto Rico

To help manage agricultural practices with fewer or no pesticides, University of Michigan researchers say they need to understand how ecological systems work on agricultural lands.

Aug 11, 2025 in Biology
Phys.org / Strategically bringing back beavers could support healthy and climate-resilient watersheds

After enduring centuries of hunting, habitat loss, and disease, North American beavers (Castor canadensis) are making a comeback—and bringing benefits for both humans and nature with them.

Aug 11, 2025 in Biology
Phys.org / Two solutions unlock safer RNA therapies for inflammatory diseases

Lipid nanoparticles (LNPs) are tiny fat bubbles that are used to deliver medicines, genes, and RNA into cells. However, in some cases LNPs can cause harmful inflammation as a result of the process of RNA delivery.

Aug 11, 2025 in Nanotechnology
Phys.org / Livestock played a role in prehistoric plague infections, genomic study finds

Around 5,000 years ago, a mysterious form of plague spread throughout Eurasia, only to disappear 2,000 years later. Known only from ancient DNA, this enigmatic "LNBA plague" lineage has left scientists puzzled about its likely ...

Aug 11, 2025 in Other Sciences
Dialog / Rethinking imperfections: How defects are powering brighter perovskite emissions

In materials science, defects are usually seen as problems, unwanted microscopic features that degrade performance, reduce efficiency or shorten the lifespan of devices. But a recent breakthrough published in Advanced Materials ...

Aug 11, 2025 in Chemistry
Phys.org / Common food bacteria could help make vitamins cheaper and greener

A new study reveals how Lactococcus lactis (L. lactis), a common food bacterium, regulates the production of a key precursor in vitamin K₂ (menaquinone) biosynthesis. The bacteria produce enough of this precursor to support ...

Aug 11, 2025 in Biology
Phys.org / 56 million years ago, Earth underwent rapid global warming—here's what it did to pollinators

Pollinators play a vital role in fertilizing flowers, which grow into seeds and fruits and underpin our agriculture. But climate change can cause a mismatch between plants and their pollinators, affecting where they live ...

Aug 11, 2025 in Biology
Phys.org / Previously unknown protein 'folding factories' discovered

In order to fulfill their many functions, proteins must be folded into the correct shape. Researchers at the University of Basel have now discovered tiny "folding factories" in cells that enable efficient and accurate protein ...

Aug 11, 2025 in Biology