Researchers have now found a way to make nuclear clocks a thousand times less radioactive and more cost-effective, thanks to ...

The sample from the older person contained higher levels of the ion fluoride, which is often found ... to use a technique called "atom probe tomography," which allows researchers to get a 3D ...

especially in older individuals (1 Trusted Source Stratification of fluoride uptake among enamel crystals with age elucidated by atom probe tomography Go to source). Tooth enamel is made up ...

Teeth are essential for helping people break down the food they eat and are protected by enamel, which helps them withstand the large amount of stress they experience as people chew away.

Reference: Grimm JR, Renteria C, Mukhopadhyay S, Devaraj A, Arola DD. Stratification of fluoride uptake among enamel crystals with age elucidated by atom probe tomography. Commun Mater. 2024;5(1):1-8.

Unlike optical atomic clocks—which rely on electronic transitions—nuclear clocks utilize the energy transitions in the atom’s nucleus ... heating thorium fluoride in a chamber until it ...

A study at the University of Washington reveals that enamel on teeth changes with age, becoming more compact but brittle and integrating more fluoride through life. Researchers used atom probe ...

The researchers investigated how fluoride integrates into enamel as we journey through ... Together, they used a sophisticated technique called “atom probe tomography.” This cutting-edge method ...

Physicists at UCLA have taken a major step toward creating the most accurate clocks ever by using a thin film of thorium-229.