Analytical Chemistry

Mapping how proteins bind to silica nanoparticle interactions using biophysics

Nanoparticles (NPs) are materials whose dimensions range from 1 to 1,000 nanometers (nm). Due to their nano-scale dimensions and tunable material properties, NPs have gained interest in the global scientific community in ...

Analytical Chemistry

New system uses sound and terahertz waves to measure blood sodium without needles

In a new study, researchers demonstrate long-term, non-invasive monitoring of blood sodium levels using a system that combines optoacoustic detection with terahertz spectroscopy. The paper is published in the journal Optica.

Chicago's rodents are evolving to handle city living

In general, evolution is a long, slow process of tiny changes passed down over generations, resulting in new adaptations and even new species over thousands or millions of years. But when living things are faced with dramatic ...

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Study shows sleeping brain remains alert to harsh, urgent sounds

During sleep, the brain must achieve a delicate balance: disconnecting from sensory input to allow restorative functions, while remaining alert enough to wake if danger arises. How does it sort through external stimuli—particularly ...

Spotted: endangered leopard in Bangladesh

Photographs of a leopard snapped by camera traps in forests in Bangladesh's Chittagong Hill Tracts have raised hopes among conservationists working to save the critically endangered species.

NASA shares new views of our galactic neighbor, Andromeda

The Andromeda galaxy, also known as Messier 31 (M31), is the closest spiral galaxy to the Milky Way at a distance of about 2.5 million light-years. Astronomers use Andromeda to understand the structure and evolution of our ...

Researchers discover how caffeine could slow cellular aging

A new study from the Cellular Aging and Senescence laboratory at Queen Mary University of London's Centre for Molecular Cell Biology reveals how caffeine—the world's most popular neuroactive compound—might do more than ...

Newborns have elevated levels of a biomarker for Alzheimer's

Newborn babies and patients with Alzheimer's disease share an unexpected biological trait: elevated levels of a well-known biomarker for Alzheimer's, as shown in a study led by researchers at the University of Gothenburg ...

US enters first major heat wave of 2025

The United States is experiencing its first significant heat wave of the year, beginning Friday across the Great Plains and expanding into parts of the Midwest and Great Lakes over the weekend, according to the National Weather ...