Traditional systemic therapies face a fundamental issue: achieving therapeutic potency without causing off-target toxicity.
Delivering chemotherapy or potent small molecules often damages healthy tissue alongside diseased targets. Bio-orthogonal chemistry—reactions engineered to occur inside living systems without cross-reacting with native biological processes—offers a transformative solution. By using these reactions to assemble or activate drugs directly inside diseased tissue (in-vivo synthesis), medicine is moving from systemic delivery to targeted cellular engineering.
The primary challenge of performing chemistry inside a human organism is biological noise. A living cell contains tens of thousands of proteins, lipids, and metabolites with reactive functional groups. Bio-orthogonal reactions rely on abiotic functional groups—chemical handles that do not exist in nature and react exclusively with one another.
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