Based on Intel's Loihi platform, researchers have developed a microchip that can "smell" various airborne chemicals. The chip mimics the biological wiring of our own noses and olfactory systems, allowing it to learn specific smells after only a single exposure. Researchers hope the chip can be used to detect hazardous chemicals in closed environments and will lead to further advances in A.I. research
https://www.notebookcheck.net/Intel-designs-a-chip-that-can-smell-hazardous-chemicals.457790.0.html