Phys.org news

Phys.org / New method enables precise fluorine addition to drug-like molecules in one step

Fluorine is critical for biomedicine. This element can help drug compounds be more potent and last longer in the body, and its radioactive isotope, fluorine-18, powers medical imaging techniques such as positron emission ...

18 hours ago in Chemistry
Phys.org / Surface-engineered ZnO nanocrystals tackle perfluoroalkyl substance contamination

Perfluoroalkyl substances (PFASs), a large class of synthetic chemicals, are valued for their ability to withstand heat, water, and oil. These materials are used in the production of everyday as well as industrial items. ...

18 hours ago in Nanotechnology
Phys.org / Dazzling cosmic jet reveals time-stamped history of star birth

An international team of astronomers has uncovered the most unmistakable evidence yet that the powerful jets launched by newborn stars reliably record a star's most violent growth episodes, confirming a long-standing model ...

20 hours ago in Astronomy & Space
Phys.org / Uncovering early embryonic communications using new stem cell model

From the moment an embryo starts to take shape, two-way communication is critical for making sure tissues and organs develop correctly.

19 hours ago in Biology
Phys.org / A new fossil face sheds light on early migrations of ancient human ancestor

A team of international scientists, led by Dr. Karen Baab, a paleoanthropologist at the College of Graduate Studies, Glendale Campus of Midwestern University in Arizona, produced a virtual reconstruction of the face of early ...

20 hours ago in Biology
Phys.org / Remote Southern Ocean seabirds study highlights reach of 'forever chemicals'

Seabirds in one of the remotest parts of the planet are being exposed to a wide range of forever chemicals, scientists have discovered.

19 hours ago in Earth
Phys.org / How bubbles may speed up CO₂ uptake by the ocean

A new study provides evidence that the ocean may have absorbed as much as 15% (0.3–0.4 Pg C yr-1) more CO2 than previously thought, requiring a re-think of future CO2 flux assessments and global climate models.

19 hours ago in Earth
Phys.org / Composite copper oxides show strong, long-lasting antiviral action against tough viruses

Composite copper–lanthanum and copper–yttrium oxides developed by researchers from Japan demonstrate exceptionally high antiviral activity against non-enveloped virus. These oxides are highly stable and achieve more than ...

20 hours ago in Chemistry
Phys.org / ROSE-3D advances isotropic 3D super-resolution microscopy

In a study published in Nature Methods on December 2, a research team led by Profs. Xu Tao and Ji Wei from the Institute of Biophysics of the Chinese Academy of Sciences has developed a three-dimensional interferometric localization ...

19 hours ago in Biology
Phys.org / Cool satellites and flexible electronics: Thin interlayers strengthen flexible composite materials

The picture that pops up before our inner eye when we hear the word "satellite" is probably this: Two extended solar "wings" and a compact body wrapped in foil with a golden or silvery shimmer. Researchers at Empa's Mechanics ...

19 hours ago in Chemistry
Phys.org / How cells survive oxidative stress and ferroptosis

EPFL scientists have identified a molecular pathway that protects cells from lipid oxidation and ferroptosis, a regulated form of cell death involved in aging and several diseases.

19 hours ago in Biology
Phys.org / Silver-coated cicada wing nanostructures boost molecular detection signals

Zoom in far enough on an empress cicada wing, and a strange landscape materializes. At the nanoscale, densely packed spires rise from the surface, covering the wing in an endless grove of bowling pins.

20 hours ago in Nanotechnology