Nanobionic sers sensor for detecting airborne analytes, system comprising same, and method for detecting airborne analytes

A method for the detection of airborne analytes,

• preparing an optical nanosensor comprising a first nanostructure, a second nanostructure disposed on a surface of the first nanostructure to cause surface-enhanced Raman scattering (SERS) and comprising a metal, and a polymer bonded to a surface of the second nanostructure and being capable of adsorbing the analytes;
• introducing the optical nanosensor into the interior of leaves of a living plant;
• and
• measuring a SERS signal generated by the optical nanosensor introduced inside the leaves of the plant to detect the analytes has been introduced into the leaves through stomata of the plant by respiration and plant-to-plant communication mechanism from the air surrounding the plant.