A method for treating a medical implant uses plasma polymerization to apply a coating At least one treatment parameter is selected so that the reactive chemical groups of the coating are chemically modified to prevent an adsorption of interfering substances into the coating. An implant includes a plasma polymer coating that is biocompatible, and includes a antibiotically acting metal. The coating is free from aldehyde groups

Various implementations of implants and implant surfaces for clinical rehabilitation or enhancement of a patient, related systems, and computer programs and methods for the design and manufacturing of implants are disclosed. A macroscale shape, a microscale surface texture, and a nanoscale surface topography are overlaid to increase, condition, and thereby functionalize an implant surface. A thin-film coating and/or laser interferometry is utilized to overlay on a machined implant substrate a nanoscale surface topography. Manufacturing the macroscale shape and the microscale texture may be performed with an ultrashort pulsed laser system in separate process steps. The design of a dental implant may be assisted by a self-learning computer program product, based on trained coupled shape models including, for example, mesh-based statistical shape and orientation models.

Disclosed are compositions including a film enriched with a radioisotope relative to its natural abundance, wherein the film has a thickness of one to ten atomic or molecular layers, decay of the radioisotope comprises emission of electrons, and a majority of the emitted electrons have an energy less than or equal to 700 electron volts (ev). Also disclosed are methods for making the compositions. The compositions can be used in microarrays, nanoarrays, microparticles, nanoparticles, power sources, sensing devices, and medical devices; they may also be used in a method of delivering low-energy electrons to a liquid, solid, molecular layer, or cell.

A composite coating and method for preparing the composite coating on titanium implants for tissue culture and tissue engineering is provided. The implants are characterized in that the titanium component to be coated is placed in a aqueous solution containing calcium cations, phosphate anions, and dispersed carbon nanoparticles (such as single layer graphene oxide or graphene oxide) in an amount of about 0.05%-1.50% by weight relative to the total weight of aqueous solution. The dimensions of the dispersed graphene oxide should be around, but not limited to, 300-800 nm (X-Y), while their thickness is about 0.7-1.2 nm. The aqueous solution with carbon nanoparticles is prepared by mixing for at least 72 h in temperature in range 20-35 C. and sonicated before electrodeposition process. In the prepared solution is further placed titanium which acts as cathode element (may be the implant), and anode which can be, for example, a platinum rod. Between the cathode and anode is set a potential from 1.3V to 1.7V which results in coating formation by electrodeposition. The titanium implant before the electrodeposition process is treated in sodium hydroxide of HF to improve coating formation and thickness.

To provide a magnesium alloy with improved corrosion resistance by surface modification, and a production method thereof. (1) The surface-modified magnesium alloy comprising: a magnesium alloy having an arbitrary shape; a magnesium fluoride layer formed by fluorination of the surface of the magnesium alloy; and a diamond-like carbon layer formed on the magnesium fluoride layer. (2) The method comprising: subjecting a surface of a magnesium alloy having an arbitrary shape to fluorination treatment to form a magnesium fluoride layer on the surface of the magnesium alloy, and then subjecting the magnesium alloy with the magnesium fluoride layer to be placed in a high-frequency plasma CVD device such that a source gas containing carbon is introduced to form a diamond-like carbon layer on the magnesium fluoride layer.

Described is a composite material composed of an atomically thin (single layer) amorphous carbon disposed on top of a substrate (metal, glass, oxides) and methods of growing and differentiating stem cells.

A medical device for repairing injuries to the spinal cord or peripheral nerve has a first flexible substrate supporting first nanoparticles selected from the group consisting of silicon, carbon, gold and titanium, at least partially embedded in a binding layer joined to the first flexible substrate. Each first nanoparticle develops along a preferential direction of development. The nanoparticles are oriented so that, statistically, the preferential direction of development is parallel to a first orientation of growth. Stem cells are at least partially embedded in the binding layer. The first nanoparticles are functionalized so that stem cell differentiation along the first nanoparticles is guided in the first orientation of growth. The first flexible substrate is suitable to assume a distended configuration and a wrapped configuration in which it is wrapped around the spinal cord or peripheral nerve whereby the first orientation of growth is statistically parallel to the neuronal direction of extension of neurons of the spinal cord or peripheral nerve.

The invention relates to a method for healing blood vessels by stimulating the formation of a confluent endothelial autologous cell layer in vivo on an implantable metallic stent having a lumen and a luminal surface, and an exterior surface. More specifically, the method includes implanting the stent with a coating in a patient in need of thereof; wherein the coating includes one or more layers of a matrix covalently adherent on said luminal and exterior surface of said stent containing one or more pharmaceutical substances on said exterior surface and a therapeutically effective amount of a single type of antibody, antibody fragments or combinations thereof being compatible to binding selectively to a specific cell surface antigen of circulating autologous endothelial progenitor cells in peripheral blood. In addition, genetically engineered endothelial progenitor cells can be captured on said luminal surface of stent in vivo, to proliferate to form rapidly a confluent endothelium in situ.

Composites having a substrate, a diamond film, and a metal boride film disposed between the substrate and the diamond film, together with methods for producing the composites.

The present disclosure discloses a CFR-PEEK orthopedic implant and a preparation method therefor, and a wireless sensing device. The CFR-PEEK orthopedic implant includes a CFR-PEEK matrix and a patterned carbonization layer. The patterned carbonization layer is formed by performing in-situ carbonization of the CFR-PEEK matrix.