a component or device is provided for the detection or the measurement in parallel of one or more specific types of biological or chemical target products . this component includes a group of nanotubes selected and / or functionalized to interact with the target product , around an optical waveguide . thus , an optical coupling is produced between the optical waveguide and one or more optical characteristics of these nanotubes , the modifications of which are evaluated in the presence of the target product . in addition , a method is provided for manufacturing and preparing such a component or device , and a detection method using them , as well as a post - manufacture preparation method comprising a specific functionalization for different target products starting from the same type of pluripotent generic component . also provided is a family of pfo - based functionalization polymers .