Nanotech scientists teach spinach how to send emails, detects bombs

According to a new scientific paper from Nature Materials titled, "Nitroaromatic detection and infrared communication from wild-type plants using plant nanobionics"

living spinach plants (Spinacia oleracea) can be engineered to serve as self-powered pre-concentrators and autosamplers of analytes in ambient groundwater and as infrared communication platforms that can send information to a smartphone.