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Biology

Synthetic Biology Circuits for Programmable Cell-Based Biosensors

Quick fact

In 2021, researchers engineered bacteria that can detect and report the presence of tumor DNA in the gut, offering a potential non-invasive diagnostic for colorectal cancer.

Why this is interesting

What if a bacterium could be programmed to turn red when it detects a hidden chemical, or glow when it finds a cancer marker in your blood? That's not science fiction—it's the promise of synthetic biology circuits.