DEVICE AND METHOD FOR CONTROLLED ADHESION UPON MOIST SUBSTRATE

摘要

A device for generating an adjustable adhesion force on a wet substrate is described. The device has a main body with an adhesion surface which, in use, arranges itself facing the substrate, at such adhesion surface the main body having a plurality of channels generating a capillary return for water present on the substrate. A delivery and/or reservoir system for silicone oil, providing the latter at the adhesion surface, so that silicone oil arranges itself interposed between the surface itself and the water on the substrate. A static electric field generating system generates a static electric field at the adhesion surface. Such electric field modifies the wettability of silicone oil with respect to the adhesion surface.

主权项

1. A device for generating an adjustable adhesion force on a wet substrate, in particular in order to provide a locomotion of the device or a manipulation of the substrate, comprising:
a main body having an adhesion surface which, in use, is arranged facing the substrate, wherein at such adhesion surface said main body has a plurality of recesses apt to generate a capillary return for a substrate fluid present on the substrate; fluid delivery and/or reservoir means, apt to provide an interface fluid at said adhesion surface, so that the interface fluid, in use, is arranged interposed between the adhesion surface and the substrate fluid; and electric field generating means, apt to generate an electric field at the adhesion surface, so as to modify the wettability of the interface fluid on said adhesion surface.