Biomedical coatings

Yoshida M, Langer R, Lendlein A et al. (2006) From advanced biomedical coatings to multi-functionalized biomaterials. Polym Rev 46 347-375... 

Demnati, I., Grossin, D., Errassifi, F., Combes, C., Rey, C., and Le Boley, N. (2014a) Sythesis of fluor-hydroxyapatite powder for plasma sprayed biomedical coatings characterization and improvement of the powder properties. Powder Technol., 255, 23-28. 

Hornberger, H., Virtanen, S., and Boccaccini, A.R. (2012) Biomedical coatings on magnesium alloys - a review. Acta Biomater.,... 

Lima, R.S., Marple, B.R., Khor, K.A. and Li, H. (2005a) Titania thermal spray coatings made from a nanostructured feedstock an alternative as a biomedical coating. Abstract ASM Materials and Processes for Medical Devices Conference, Boston, MA, November 14-16, Session 5c. 

The deposited nanofibers may have applications in catalysis, biodetection, and biomedical coatings [113]. 

Biomedical coatings can have several functions. First and foremost they must prevent the human body from rejecting an implant. Furthermore, implants have coatings that either reduce the growth of scar tissue in soft tissues or aid in tissue growth inside bones, facilitating a solid attachment between bones... 

Biomedical Coatings for hip joints, heart valves and other prostheses. DLC is biocompatible and blood compatible. ... 

The emulsion polymerization of vinyl and acrylic monomers has received much attention for praetieal and academic reasons and with an eye toward the synthesis of polymers for biomedical, coating and adhesive applications. Wang and Pan reported on poly(styrene-co-acrylonitrile)-nickel nanoeomposites, the post-emulsion polymerization of aerylonitrile (AN) and styrene, the subsequent coupling of poly(styrene-co-acrylonitrile) and a small amount of PdCl4 as a... 

Traditional appHcations for latices are adhesives, binders for fibers and particulate matter, protective and decorative coatings (qv), dipped goods, foam, paper coatings, backings for carpet and upholstery, modifiers for bitumens and concrete, and thread and textile modifiers. More recent appHcations include biomedical appHcations as protein immobilizers, visual detectors in immunoassays (qv), as release agents, in electronic appHcations as photoresists for circuit boards, in batteries (qv), conductive paint, copy machines, and as key components in molecular electronic devices. 

Alkenylsuccinic anhydrides made from several linear alpha olefins are used in paper sizing, detergents, and other uses. Sulfosuccinic acid esters serve as surface active agents. Alkyd resins (qv) are used as surface coatings. Chlorendric anhydride [115-27-5] is used as a flame resistant component (see Flame retardants). Tetrahydrophthalic acid [88-98-2] and hexahydrophthalic anhydride [85-42-7] have specialty resin appHcations. Gas barrier films made by grafting maleic anhydride to polypropylene [25085-53-4] film are used in food packaging (qv). Poly(maleic anhydride) [24937-72-2] is used as a scale preventer and corrosion inhibitor (see Corrosion and corrosion control). Maleic anhydride forms copolymers with ethylene glycol methyl vinyl ethers which are partially esterified for biomedical and pharmaceutical uses (189) (see Pharmaceuticals). 

Lubricious Coatings for Biomaterials. Coatings of poly(ethylene oxide) when dry are tactile. If brought into contact with water, the poly(ethylene oxide) hydates rapidly and forms a lubricious coating. This type of technology is of great interest for biomedical devices introduced into the human body, such as catheters and endotracheal tubes, and for sutures (114—117). 

Biomedical. Heart-valve parts are fabricated from pyrolytic carbon, which is compatible with living tissue. Such parts are produced by high temperature pyrolysis of gases such as methane. Other potential biomedical apphcations are dental implants and other prostheses where a seal between the implant and the living biological surface is essential. Plasma and arc-wire sprayed coatings are used on prosthetic devices, eg, hip implants, to achieve better bone/tissue attachments (see Prosthetic and BiOLffiDiCALdevices). 

The deposition of pyrolytic graphite in a fluidized bed is used in the production of biomedical components such as heart valves, ] and in the coating of uranium- and thorium-carbides nuclear-fuel particles for high temperature gas-cooled reactors, for the purpose of containing the products of nuclear fission.fl" The carbon is obtained from the decomposition of propane (CgHg) or propylene (CgHg) at 1350°C, or of methane (CH4) at 1800°C. Its structure is usually isotropic (see Ch. 4). 

Administration (FDA) approval of SIBS, used as the polymeric coating on the Taxus coronary stent, opened new avenues for polyisobutylene-based TPEs in biomedical engineering. 

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