Abstract: A stressed timed-release multilayer composite, comprising a first stressed layer, and a second layer and third layer that hold the first layer under said stress. The second and third layers are configured to at least partially change to release at least a portion of the stress of the first layer in response to the second layer and/or the third layer being at least partially changed. Also disclosed is a stressed timed-release bilayer composite, comprising a first stressed layer and a second layer that holds the first layer under said stress forming a first physical curvature of the composite, wherein one or both of the first and/or second layers are configured to at least partially change and thereby form a second physical curvature. A stressed timed-release multilayer core-shell fiber is further disclosed.

Abstract: An adhesive surface comprises at least a nanoparticle coating, a metallic coating, or a fiber with a micro/nano patterned topology. The adhesive surface is adhesive to tissue in a living body. The nanoparticle coating may be metallic. In some embodiments, the adhesive surface constitutes one or more elements of a bandage or surgical mesh, is a surface of a suture, or is sized, shaped, and configured for surgical application in a body. The surface or fiber may further comprise or be encased in a dissolvable coating, such as a polysaccharide, oligosaccharide, or sucrose. The fiber may have a surface that is patterned in topological relief, such as ridges in various orientations, cylindrical protrusions substantially normal the fiber surface, undulations of the fiber surface, or random asperities of the fiber surface. The patterning may be less than 700 nm or greater than 10 microns.

Abstract: In accordance with the invention, substrate-supported linear arrays are formed by the steps of adhering a thin layer of polymer between a pair of substrates and separating the substrates perpendicular to the layer. The polymer layer separates to form substrate-supported polymer gratings on both substrates, each grating having a period proportional to the thickness of the layer. The process has been used to make gratings with periods in the sub-micron range or larger over areas covering square centimeters.