Photocontrolled Release of Urea Enables the Detection of Urea-Urease Intermediates by Cryo-FTIR.

Summary: Scientists have created a clever way to study how a specific enzyme (called urease) breaks down urea. They trapped urea inside a chemical "cage" made of a metal called ruthenium. By shining a light on it, they can break the cage and release the urea exactly when they want to! Using special freezing and light-measuring tools (called cryo-FTIR), they watched the enzyme in action. They discovered that when the enzyme is blocked from working, it looks completely different under the light than when it is working normally. This new tool helps us understand exactly how enzymes do their jobs.