The Biosensor Revolution: How “Light Bulb” Nanosensors Are Solving Diagnostics’ Biggest Flaw

Imagine a smoke detector that shrieks constantly until you remove the batteries. That’s essentially how traditional fluorescent biosensors operate—always on, regardless of whether they’ve actually detected a target. But now, a new generation of molecular spies is changing the rules: binding-activated nanosensors. These advanced sensors remain dark until they latch onto their specific targets—only then…