A seal for a movable part of a motor-vehicle includes at least one body formed of polymeric elastomeric material supplemented with carbon-based nanofillers. The body includes an outer surface having one or more piezo-resistive areas where the polymeric material supplemented with carbon-based nanofillers is piezo-resistive due to laser irradiation to define one or more electric deformation sensors activatable in response to a contact with a foreign body during the movement of the movable part of the motor-vehicle. The body also includes one or more conductive lines made locally electrically-conductive due to laser irradiation to define the one or more electrical connection lines connecting the electric deformation sensors to electrodes associated with the seal.

A sealing and/or guiding seal for a motor-vehicle window or other movable part of a motor-vehicle, includes at least one body formed of polymeric elastomeric material supplemented with carbon-based nanofillers. The body includes an outer surface with one or more piezo-resistive areas where the polymeric material supplemented with carbon-based nanofillers has been made locally piezo-resistive by laser irradiation. One or more electric deformation sensors are defined so as to detect an interference with an unrelated body during the movement of the movable part of the motor-vehicle. The body also includes one or more conductive paths where the polymeric material supplemented with carbon-based nanofillers has been made locally electrically-conductive by means of laser irradiation, so as to define one or more electrical connection lines of the piezo-resistive areas with electrodes associated with the seal.