Tel Aviv University researchers connected a biological sensor to an electronic system and used an AI algorithm to identify odors with an extremely high level of sensitivity. They believe that this technology may also be used in the future to identify explosives, diseases, and more.
https://www.jns.org/tau-researchers-develop-biological-sensor-that-allows-robots-to-smell/
https://www.sciencedirect.com/science/article/abs/pii/S0956566322009599?dgcid=author