Scientists at EPFL have created a revolutionary biosensor that doesn’t need a light source—it makes its own glow using quantum tunneling. By guiding electrons through a nanostructure of gold and aluminum oxide, the sensor emits light and detects molecules at astonishingly small concentrations, down to a trillionth of a gram. With no bulky equipment, it […]



Summary

EPFL researchers developed a light-source-free biosensor that uses quantum tunneling to generate its own light. Electrons guided through a gold and aluminum oxide nanostructure create luminescence, allowing for highly sensitive molecule detection. This innovative design can identify substances at extremely low concentrations, reaching a trillionth of a gram. Without the need for external light sources, the sensor offers a compact and potentially portable solution for various applications.

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