摘要:
A process for coating the surface of bodies fabricated from polymeric materials with inorganic films by depositing on the polymeric bodies a thin layer obtained by thermal evaporation, under vacuum, of glass/silicon mixtures. The process provides for improved control of surface-depending properties, such as wettability, haze resistance, gas and weight barrier properties and selective absorption of ultraviolet light.
摘要:
A method for grafting hydrophilic monomers containing double bonds onto polymer surfaces in aqueous solution.The grafting is activated by ultraviolet radiation and by the presence in suspension of a photoactivator of controlled particle size distribution.
摘要:
Formed articles having improved surface properties, such as wettability, printability, adhesion, antistaticity and clouding resistance, consisting of a polymeric finished article or semi-finished article coated on at least a surface with a polyhydroxethylacrylate layer, preferably prepared by means of plasma polymerization.
摘要:
Process for reducing the friction coefficient between water, and, surfaces of fabricated bodies made from polymeric materials, and for increasing the water repellency of said surfaces, which process comprises treating the concerned surface with a corrosive solution, and coating it with a thin layer of fluorinated polymer.
摘要:
Processes are provided for coating the surfaces of objects with hyaluronic acid, its derivatives or other natural or semisynthetic polymers, for applications in the fields of surgery, health care and diagnostics. The processes make it possible to bind such polymers in a stable manner to the surfaces of objects made of a wide range of materials. Surfaces treated according to the processes are characterized by a high degree of wettability, and are able to inhibit the adhesion of cells or bacteria present in the biological fluids.
摘要:
The invention relates to modified materials based on polyacrylonitrile having amidic groups on their surface. The modification gives the material greater hydrophilic characteristics improving its comfort properties. In addition, it permits the polyacrylonitrile to be dyed also with acidic dyes thus making it possible for it to be used for the preparation of yarns mixed with natural fibres, such as wool for example. The process for their production involves treatment of the material with enzymes of the nitrile hydratasis class obtained from Brevibacterium imperiale.
摘要:
Implantable devices having antibacterial activity for preventing periprosthetic infections and for improving osteointegration capacity are provided. Methods for making and using such devices are also provided.
摘要:
The present description relates to an implant device, having an improved integration in the tissue of the animal or human body into which it is inserted, when compared to the prior art devices.Particularly, the present description relates to an implant device for the implant in animal or human body, comprising a hyaluronic acid coating, characterized in that said hyaluronic acid is low molecular weight hyaluronic acid or is composed of a mixture of low molecular weight hyaluronic acid and high molecular weight hyaluronic acid, wherein said low molecular weight hyaluronic acid has a molecular weight lower than 80,000 Dalton and said high molecular weight hyaluronic acid has a molecular weight higher than 700,000 Dalton.
摘要:
Implantable devices having antibacterial activity for preventing periprosthetic infections and for improving osteointegration capacity are provided. Methods for making and using such devices are also provided.
摘要:
A method of modifying surfaces of a device, for example, a medical device, is disclosed. The method includes modifying a surface of a device by providing a device, exposing the device to a reactive gas and plasma energy to create a plasma deposited surface on the device, and quenching the device with the reactive gas. The device exhibits changes in its surface properties thereby making it more desirable for an intended use.