On the far right side of the periodic table, just beneath oxygen, sits a lesser-known group of elements called the chalcogens, or “ore-forming” elements. While sulfur is widely recognized for its role ...

The Selenium Dilemma Selenium is an element with a dual nature; it is a necessary micronutrient for humans and animals but ...

Selenium, a trace mineral found in various foods and nutritional supplements, may inhibit progression toward esophageal cancer among people with Barrett's esophagus, a precancerous condition that ...

Researchers from the Wuhan National Laboratory for Optoelectronics (WNLO) in China have fabricated a selenium (Se) solar cell with a selenium-tellurium (Se-Te) absorber, which they claim can optimize ...

The trace element selenium is an essential micronutrient that is required for the biosynthesis of selenocysteine-containing selenoproteins. Most of the known selenoproteins are expressed in the ...

If, like a package of food, you had a list of ingredients stamped in an out-of-the-way spot like the bottom of your foot—with the elements that make up most of your weight coming first—it would read ...