Abstract: A microstructure made of flexible material includes a plurality of projections extending from a common substrate. A distal end of each projection includes a resilient flap. All lateral dimensions of each of the projections increase monotonically with increased distance from a surface defined by distal ends of the flaps when the flaps are unbent. Each of the projections extends from the common substrate in a general direction that is locally substantially perpendicular to the surface defined by the ends of the flaps. When a shear force is applied to each of the flaps by relative motion between the flap and a cooperating surface in contact with the flap, the flap bends so as to increase the area of contact of that flap with the cooperating surface, affecting adhesion between the microstructure and the cooperating surface.

Abstract: A suction device having the ability to adhere to rough surfaces is provided, along with methods for attaching the suction device to a target surface. The suction device includes a body having a suction area and a plurality of micro-rods depending from margins of the suction area. The micro-rods provide sufficient friction when placed against a target surface that a suction seal can be formed by generating negative pressure between the suction area and the target surface. In certain embodiments, the suction device provides suction even on wet or underwater surfaces.

Abstract: A suction device having the ability to adhere to rough surfaces is provided, along with methods for attaching the suction device to a target surface. The suction device includes a body having a suction area and a plurality of micro-rods depending from margins of the suction area. The micro-rods provide sufficient friction when placed against a target surface that a suction seal can be formed by generating negative pressure between the suction area and the target surface. In certain embodiments, the suction device provides suction even on wet or underwater surfaces.

Abstract: Described are methods for surface modification of an object (10) in order to increase the adhesive power of the object, wherein the surface (11) is subjected to structuring so that a multitude of projections (12) are formed, each comprising a foot part and a head part, wherein the head part comprises a front surface (13) which faces away from the surface, wherein each projection (12) is made in a size such that all front surfaces (13) project to the same vertical height above the surface (11), and form an adherent contact surface (14) which is interrupted by mutual spacing between the front surfaces (13).

Abstract: A vacuum gripper for suctioning work pieces, having a vacuum connection, a flexible suction body and a suction body holder, where the side of the suction body facing the work piece has a sealing lip bounding a vacuum chamber, and the vacuum chamber is connected to the vacuum connection. The suction body has a contact surface abutting the work pieces with prevailing vacuum in the vacuum chamber. The contact surface is provided with elements, where the elements are have a rod or pin-shaped configuration and form a microstructure.

Abstract: Described are methods for surface modification of an object (10) in order to increase the adhesive power of the object, wherein the surface (11) is subjected to structuring so that a multitude of projections (12) are formed, each comprising a foot part and a head part, wherein the head part comprises a front surface (13) which faces away from the surface, wherein each projection (12) is made in a size such that all front surfaces (13) project to the same vertical height above the surface (11), and form an adherent contact surface (14) which is interrupted by mutual spacing between the front surfaces (13).

Abstract: A vacuum gripper for suctioning work pieces, having a vacuum connection, a flexible suction body and a suction body holder, where the side of the suction body facing the work piece has a sealing lip bounding a vacuum chamber, and the vacuum chamber is connected to the vacuum connection. The suction body has a contact surface abutting the work pieces with prevailing vacuum in the vacuum chamber. The contact surface is provided with elements, where the elements are have a rod or pin-shaped configuration and form a microstructure.