A chip that can “smell”: photons to help detect hazardous gas molecules
Russian researchers have developed a new method for creating highly accurate miniature detectors capable of sensing gas molecules — from acetone vapors to toxic compounds. The core of the technology is a layer of nanoscale spheres that condense gas molecules like a sponge, while a photonic integrated circuit detects changes caused by the gas. These versatile detectors can quickly identify industrial leaks, monitor urban air quality, and even assist in diagnosing diabetes.
