Chirality—often described as "handedness"—is a fundamental property of nature, underlying the behavior of molecules ranging from DNA to pharmaceuticals. While chemists have long known how to separate ...

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. NARRATOR: So chemists set themselves to breaking down compounds into their atomic elements. It goes ...

Metals are highly genotoxic as environmental contaminants, whereas in low concentrations they are vitally important elements. With respect to their genotoxic potential, metals can be categorized ...