Yeda Research and Develpment & Co. Ltd

Holon Academic Institute of Technology

A.y.y.t. Technological Application and Data Update Ltd

Other

Hadasit Medical Research Services and Development Ltd.

A.y.y.t. Technological Applications and Data Updat

Lev Rapoport

Reshef Tenne

Ronit Popovitz-Biro

Alexander Margolin

Yishay Feldman

Hila Shalom

Meir Redlich

Alon Katz

Mark Lvovsky

Ofek Golan

Volf Leshchinsky

This invention is directed to composites and films comprising hydroxyapatite, biodegradable polymer, a biocompatible surfactant with inorganic fullerene-like (IF) nanoparticles or inorganic nanotubes (INT); methods of preparation and uses thereof.

Hydroxyapatite based composites and films thereof

The present invention provides an article, at least part of it being coated by inorganic fullerene-like (IF) nanoparticles or composite containing such nanoparticles. Preferably, the invention provides an article made of metal, for use in dentistry or medicine e.g. archwire, needle or catheter, having a friction-reducing film, and methods for coating such articles with a friction-reducing film.

Low friction coatings for use in dental and medical devices

The present invention provides a process for obtaining fullerene-like metal chalcogenide nanoparticles, comprising feeding a metal precursor selected from metal halide, metal carbonyl, organo-metallic compound and metal oxyhalide vapor into a reaction chamber towards a reaction zone to interact with a flow of at least one chalcogen material in gas phase, the temperature conditions in said reaction zone being such to enable the formation of the fullerene-like metal chalcogenide nanoparticles product. The present invention further provides novel IF metal chalcogenides nanoparticles with spherical shape and optionally having a very small or no hollow core exhibiting excellent tribological behaviour. The present invention further provides an apparatus for preparing various IF nanostructures.

Process and apparatus for producing inorganic fullerene-like nanoparticles

The present invention provides a process for obtaining fullerene-like metal chalcogenide nanoparticles, comprising feeding a metal precursor (INi) selected from metal halide, metal carbonyl, organo-metallic compound and metal oxyhalide vapor into a reaction chamber () towards a reaction zone to interact with a flow of at least one chalcogen material (IN) in gas phase, the temperature conditions in said reaction zone being such to enable the formation of the fullerene-like metal chalcogenide nanoparticles product. The present invention further provides novel IF metal chalcogenides nanoparticles with spherical shape and optionally having a very small or no hollow core and also exhibiting excellent tribological behavior. The present invention further provides an apparatus for preparing various IF nanostructures.

The present invention provides a new composite material comprising a porous matrix made of metal, metal alloy or semiconducting material and hollow fullerene-like nanoparticles of a metal chalcogenide compound or mixture of such compounds. The composite material is characterized by having a porosity between about 10% and about 40%. The amount of the hallow nanoparticles in the composite material is 1-20 wt. %.

Hollow fullerene-like nanoparticles as solid lubricants in composite metal matrices

Growing community of inventors

Lod, Israel

Lev Rapoport