Imagine walking into your kitchen and instantly knowing if the fish you bought yesterday is still fresh—or entering an industrial site with sensors that immediately alert you to hazardous gas leaks.

Ammonia (NH 3)—the second-most-produced chemical globally—has proven to be highly important in furthering human civilization over the centuries, both in terms of technological capabilities and ...

For many industries, nitrogen (N₂) plays an unnoticed but vital role in inerting reactors, storing food safely, and protecting the sterility of pharmaceuticals. But what makes it dangerous is that ...