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Phys.org / 'Spectral slimming' yields ultranarrow plasmons in single metal nanoparticles

Researchers have developed a new strategy to overcome a long-standing limitation in plasmonic loss by reshaping light–matter interactions through substrate engineering.

Jan 27, 2026 in Physics
Phys.org / Streaks on Mercury show that it is not a 'dead planet'

Although Mercury was geologically active in its early days, today its surface appears almost completely static. This is why it is often perceived as a dead and dry planet. A new study led by Dr. Valentin Bickel from the Center ...

Jan 27, 2026 in Astronomy & Space
Medical Xpress / Lab-grown organoids reveal how glioblastoma outsmarts treatment

UCLA scientists have developed advanced miniature 3D tumor organoid models that make it possible to study glioblastoma tumors in a setting that closely mirrors the human brain, shedding light on how the aggressive cancer ...

Jan 27, 2026 in Neuroscience
Phys.org / Hafted stone tools in China suggest early hominins were more inventive than thought

A newly excavated archaeological site in central China is reshaping long-held assumptions about early hominin behavior in Eastern Asia. Led by the Chinese Academy of Sciences, an international team of researchers conducted ...

Jan 27, 2026 in Other Sciences
Tech Xplore / Amazon to close most Amazon Go and Amazon Fresh stores in days

Amazon said this week that it was closing almost all of its Amazon Go and Amazon Fresh locations within days as it narrows its focus on food delivery and its grocery chain, Whole Foods Market.

Jan 28, 2026 in Business
Medical Xpress / New study finds heart attacks involve brain and immune system, not just heart

Arteries become clogged. Blood flow is restricted and oxygen is cut off. The result is a heart attack, the world's leading cause of death.

Jan 27, 2026 in Neuroscience
Medical Xpress / Key to human intelligence lies in how brain networks work together, neuroimaging study suggests

Modern neuroscience understands the brain as a set of specialized systems. Aspects of brain function such as attention, perception, memory, language, and thought have been mapped onto distinct brain networks, and each has ...

Jan 27, 2026 in Psychology & Psychiatry
Medical Xpress / A curiosity-driven journey toward understanding brain folding

The human brain's soft folds and ridges, arising in early development and continuing through the first 18 months of life, are a visual icon for intelligence itself. Peeling back the layers of this fundamental biological process ...

Jan 27, 2026 in Neuroscience
Tech Xplore / Core-shell anodes boost sodium-ion battery efficiency and capacity

Sodium-ion batteries are considered a promising, sustainable alternative to lithium-ion batteries. However, high storage losses during the first charging cycle have slowed down their development so far. Researchers at the ...

Jan 27, 2026 in Engineering
Medical Xpress / ADHD and methylphenidate tied to higher adult BMI

Seoul National University Hospital researchers have linked childhood attention-deficit/hyperactivity disorder and methylphenidate exposure with higher adult overweight/obesity and slightly shorter adult height at ages 20 ...

Jan 26, 2026 in Attention deficit disorders
Phys.org / Raman sensors with push-pull alkyne tags amplify weak signals to track cell chemistry

Seeing chemistry unfold inside living cells is one of the biggest challenges of modern bioimaging. Raman microscopy offers a powerful way to meet this challenge by reading the unique vibrational signatures of molecules. However, ...

Jan 27, 2026 in Chemistry
Phys.org / Q&A: Learning how we respond to wildfire smoke to help inform policy and programs

With wildfires growing in size, frequency, and intensity, more and more people are being exposed to their smoke, sometimes thousands of miles from the flames. In the wake of recent historic fires in Canada and the United ...

Jan 28, 2026 in Earth