Self-lighting chip uses quantum tunneling to spot a trillionth of a gram
Imagine detecting a single trillionth of a gram of a molecule—like an amino acid—using just electricity and a chip smaller than your fingernail. That’s the power of a new quantum-enabled biosensor developed at EPFL. Ditching bulky lasers, it taps into the strange world of quantum tunneling, where electrons sneak through barriers and release light in the process. This self-illuminating sensor uses a gold nanostructure to both generate and sense light, making it incredibly compact, ultra-sensitive, and perfect for rapid diagnostics or environmental testing. With its cutting-edge design, it might just revolutionize how and where we detect disease, pollutants, and more.
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