A new approach for activating chemical reactions based on the element selenium has been tested by scientists. They demonstrated that selenium can form bonds similar to those of hydrogen bonds, ...

Selenium is an essential trace element that is contained in various proteins and has both nutritional and potentially toxic properties. Selenium mainly exists as selenocysteine (Sec) and ...

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 ...

In new work, researchers report that the ability of plants to defend themselves by accumulating high levels of a toxic element can be overcome by some insects, and that such adaptation potentially ...