The present invention provides a vapor-liquid ejector with a removable nozzle in which the internal structure has been modified and improved concerning the clearance that exists to enable said nozzle to be engaged in the body of said ejector. Sealing means are provided between the cover and the vessel to provide a gas tight treatment zone. The second sensor is positioned proximate the first sensor. The link adapter includes a modulation and coding scheme updater configured to identify a MCS based on the required coding rate. The robot comprises a robot arm and a device for projecting the image onto the surface of the object, said device being mounted on or integrated into the robot arm. The material forms a patch having a diameter of about 3 to about 10,000 nanometers.