The invention relates to a metallic foam body, comprising (a) a metallic foam body substrate made of at least one metal or metal alloy A; and (b) a layer of a metal or metal alloy B present on at least a part of the surface of the metallic foam body substrate (a), wherein A and B differ in their chemical composition and/or in the grain size of the metal or metal alloy, and wherein the metal or metal alloy A and B is selected from a group consisting of Ni, Cr, Co, Cu, Ag, and any alloy thereof; obtainable by a process comprising the steps (i) provision of a porous organic polymer foam; (ii) deposition of at least one metal or metal alloy A on the porous organic polymer foam; (iii) burning off of the porous organic polymer foam to obtain the metallic foam body substrate (a); and (iv) deposition by electroplating of the metallic layer (b) of a metal or metal alloy B at least on a part of the surface of the metallic foam body (a). The invention moreover relates to a process for the production of the metallic foam body and a use of the metallic foam body.

Implantable medical grafts fabricated of metallic or pseudometallic films of biocompatible materials having a plurality of microperforations passing through the film in a pattern that imparts fabric-like qualities to the graft or permits the geometric deformation of the graft. The implantable graft is preferably fabricated by vacuum deposition of metallic and/or pseudometallic materials into either single or multi-layered structures with the plurality of microperforations either being formed during deposition or after deposition by selective removal of sections of the deposited film. The implantable medical grafts are suitable for use as endoluminal or surgical grafts and may be used as vascular grafts, stent-grafts, skin grafts, shunts, bone grafts, surgical patches, non-vascular conduits, valvular leaflets, filters, occlusion membranes, artificial sphincters, tendons and ligaments.

An intravascular stent and method of making an intervascular stent having a hybrid pattern a. The hybrid pattern comprises a plurality of circumferentially self-expansible members comprising a plurality of interconnected, geometrically deformable closed cells, adjacent self-expansible members interconnected by a plurality of bridge members linking a first interconnection between two closed cells in a first self-expansible member to a second interconnection between two closed cells in a second self-expansible member, wherein the second interconnection is circumferentially offset and non-adjacent to the first interconnection.

Diamond-like carbon materials and methods of making diamond-like carbon materials are provided. The diamond-like carbon materials are made and tested to specific desirable properties of conductivity and overpotential for undesired reactions. Methods of making the diamond-like carbon include sputtering using a DC magnetron, where the sputtering gas includes argon and nitrogen.

Disclosed is a nanowire bundle array. Particularly, the nanowire bundle array according to an embodiment of the present disclosure includes a plurality of nanowire assemblies arranged therein. Each of the nanowire assemblies includes nanowires, a surface of at least a portion of which is coated with a thin metal film and the widths between the nanowires gradually decrease from one end to another end.

In an example of a method for making an electrode active material, a sacrificial layer is formed on a nanomaterial. Carbon is coated on the sacrificial layer to form a carbon layer. Titanium dioxide is coated on the carbon layer to form a titanium dioxide layer. The sacrificial layer is removed to form a void between the nanomaterial and the carbon layer.

Nanothick flakes that are either flat and specularly-reflective in visible light or that have microroughness intentionally controlled to disperse or interfere with visible light. Coatings and inks utilizing such flakes. Method for fabrication of such flakes in partial vacuum includes the repeated multiple times deposition of a release layer over a substrate surface and a flake layer over the release layer to form a multilayer structure further reduced to individual flakes. Reactive metal is passivated inline with the deposition of the flake layer for superior corrosion resistance. Chemically-functional materials are optionally added to the release material to transfer their functionality to the surface of flake layer to create unique functional properties on a flake surface before the multilayer structure is removed from the substrate.

A method of producing metal flakes (72) is provided. The method includes: applying a layer of ionic liquid (70) to a substrate (24); forming a layer of metal (70) on the substrate (24) over the ionic liquid (70); and removing the layer of metal (70) from the substrate (24).

The various embodiments described herein include methods for fabricating thin- film flow diversion apparatuses. In one aspect, a method includes: (1) creating a plurality of trenches using photolithography and deep reactive ion etching on a substrate; (2) depositing a metal sacrificial layer on the substrate; (3) forming a Nitinol layer with a plurality of fenestrations by depositing Nitinol on the metal sacrificial layer; (4) forming a thin-film of Nitinol by removing the metal sacrificial layer; (5) crystallizing the thin-film of Nitinol; and (6) elongating the thin-film of Nitinol.

A method of making nanostructures includes following steps. A carbon nanotube structure is suspended, wherein the carbon nanotube structure includes a number of carbon nanotubes orderly aligned. A carbon nanotube composite structure is formed by applying a precoated layer on the carbon nanotube structure, wherein a thickness of the precoated layer on an outer surface of each of the number of carbon nanotubes ranges from about 2 nanometers to about 10 nanometers. The carbon nanotube composite structure is transferred on a substrate and treating the carbon nanotube composite structure with a solution. The carbon nanotube structure is removed by annealing the carbon nanotube composite structure in an annealing temperature from about 500 C. to about 700 C., wherein the precoated layer is softened and contracted.