Abstract: A microstructure arrangement having a substrate; a set of pillars having a cross section area in the range of 10 ?m2 to 160,000 ?m2 and a pitch in the range of 20 ?m to 1000 ?m. The set of pillars can be on a set of pillars having a cross section area less than that of the pillars. The set of pillars can be defined by pillars each having a cross section width from 0.5 ?m to 100 ?m and a pitch in the range of 1 ?m to 200 ?m; and, wherein the set of pillars can be configured to cooperate to have a physical property of a grip force in excess of 50.0 N with a contact area of 25% or less, as determined by the friction testing method.

Abstract: A microstructure arrangement having a substrate; a first set of pillars having a cross section area in the range of 10 ?m2 to 400 ?m2 and a pitch in the range of 20 ?m to 1000 ?m; a second set of pillars disposed on said first set of pillars having a cross section area less than that of the pillars in said first set of pillars; wherein said second set of pillars are defined by pillars each having a cross section width from 0.5 ?m to 100 ?m and a pitch in the range of 1 ?m to 200 ?m; and, wherein said first and second set of pillars are configured to cooperate to have a physical property of a grip force in excess of 50.0N with a contact area of 25% or less, as determined by the friction testing method.

Abstract: This specimen collection tool can include a handle including a core manufactured by injecting a first material into a mold; wherein the core includes a flat portion, a protrusion and a proximal portion; a distal end having a cavity for receiving the core manufactured by injecting a second material into the mold wherein the second injection is performed without removing the handle from the mold and the second material surrounds the core; a first set of microfeatures disposed on the distal end having a second set of microfeatures disposed on the first set of microfeatures; a demolding pin included in the distal end; a support surface included on the core to support the core in the mold; and, a tapered tip included in the core operatively associated with a narrowing portion of the distal end to hinder removal of the distal end from the handle.

Abstract: A microstructure arrangement having a substrate; a first set of pillars having a cross section area in the range of 10 ?m2 to 400 ?m2 and a pitch in the range of 20 ?m to 1000 ?m; a second set of pillars disposed on said first set of pillars having a cross section area less than that of the pillars in said first set of pillars; wherein said second set of pillars are defined by pillars each having a cross section width from 0.5 ?m to 100 ?m and a pitch in the range of 1 ?m to 200 ?m; and, wherein said first and second set of pillars are configured to cooperate to have a physical property of a grip force in excess of 50.0N with a contact area of 25% or less, as determined by the friction testing method.

Abstract: A microstructure arrangement for gripping low coefficient material comprising: a substrate disposed on a gripping surface; a set of pillars disposed on the substrate; and, wherein the set of pillars have the physical property of a grip force in excess of 50.0N with a contact area of 25% or less as determined by the friction testing method. A first set of pillars can be disposed on the substrate having a cross section area in the range of 100 ?m2 to 160,000 ?m2, height relative to the substrate in the range of 10 ?m to 400 ?m, and a pitch determined from the center of the pillars, in the range of 20 ?m to 1000 ?m; and a secondary set of pillars disposed on the first set of pillars having a cross section area less than that of the pillars in the first set of pillars.

Abstract: A polymer film having an initial thickness of 20 to 200 microns. A two-level micro pattern formed on at least one side of the film so that the polymer film has a base thickness less than the initial thickness of the film following the addition of the two-level micro pattern. A plurality of microfeatures defining the micro pattern wherein a height of the microfeatures on the film is in a range from about 0.3 to about 4 times the initial film thickness while maintaining the structural stability of the microfeatures to resist bending and provide increased grip against biological tissue and simultaneously providing reduced friction against dry hard plastic and metal surfaces.

Abstract: A microstructure arrangement for gripping low coefficient material comprising: a substrate disposed on a gripping surface; a set of pillars disposed on the substrate; and, wherein the set of pillars have the physical property of a grip force in excess of 50.0N with a contact area of 25% or less as determined by the friction testing method. A first set of pillars can be disposed on the substrate having a cross section area in the range of 100 ?m2 to 160,000 ?m2, height relative to the substrate in the range of 10 ?m to 400 ?m, and a pitch determined from the center of the pillars, in the range of 20 ?m to 1000 ?m; and a secondary set of pillars disposed on the first set of pillars having a cross section area less than that of the pillars in the first set of pillars.

Abstract: A microstructure arrangement for gripping low coefficient material comprising: a substrate disposed on a gripping surface; a set of pillars disposed on the substrate; and, wherein the set of pillars have the physical property of a grip force in excess of 50.0N with a contact area of 25% or less as determined by the friction testing method. A first set of pillars can be disposed on the substrate having a cross section area in the range of 100 ?m2 to 160,000 ?m2, height relative to the substrate in the range of 10 ?m to 400 ?m, and a pitch determined from the center of the pillars, in the range of 20 ?m to 1000 ?m; and a secondary set of pillars disposed on the first set of pillars having a cross section area less than that of the pillars in the first set of pillars.

Abstract: A method for providing a microstructured surface comprising selecting a material having a desired hardness; selecting a microstructure pattern having an arrangement of microfeatures providing a touch aesthetic to be applied to said material, wherein the width and aspect ratio of the microstructures are configured to provide said touch aesthetic for the hardness of the material selected; selecting said microstructure pattern to further include a physical property independent of said touch aesthetic to be applied to said material, wherein at least one of a pitch and spacing of said microfeatures is configures to provide said physical property; determining the dimensions of said microstructure pattern to be applied to the surface of said material to achieve the desired properties; and, applying the microstructure pattern to said material.

Abstract: A microstructure arrangement for gripping low coefficient material comprising: a substrate disposed on a gripping surface; a set of pillars disposed on the substrate; and, wherein the set of pillars have the physical property of a grip force in excess of 50.0N with a contact area of 25% or less as determined by the friction testing method. A first set of pillars can be disposed on the substrate having a cross section area in the range of 100 ?m2 to 160,000 ?m2, height relative to the substrate in the range of 10 ?m to 400 ?m, and a pitch determined from the center of the pillars, in the range of 20 ?m to 1000 ?m; and a secondary set of pillars disposed on the first set of pillars having a cross section area less than that of the pillars in the first set of pillars.

Abstract: A microstructure arrangement for gripping low coefficient material comprising: a substrate disposed on a gripping surface; a set of pillars disposed on the substrate; and, wherein the set of pillars have the physical property of a grip force in excess of 50.0N with a contact area of 25% or less as determined by the friction testing method. A first set of pillars can be disposed on the substrate having a cross section area in the range of 100 ?m2 to 160,000 ?m2, height relative to the substrate in the range of 10 ?m to 400 ?m, and a pitch determined from the center of the pillars, in the range of 20 ?m to 1000 ?m; and a secondary set of pillars disposed on the first set of pillars having a cross section area less than that of the pillars in the first set of pillars.