title: Solution technique to incorporate polyethylene oxide and other water-soluble polymers into surfaces of polymeric biomaterials.
abstract: A simple solution technique was used to incorporate polyethylene oxide (PEO, of 5000, 10,000, 18,500, and 100,000 g/mol) and other water-soluble polymers such as polyvinylpyrrolidone and polyethyl oxazoline into the surfaces of commonly used biomedical polymers such as polyethylene terephthalate, a polyurethane (Pellethane 2363-80AE), and polymethylmethacrylate. The presence of the water-soluble polymers on these surfaces was verified by using contact angle analysis and ESCA. Protein adsorption studies, fibroblast adhesion assays, and whole blood perfusions over these polymers showed that the surface modified with PEO 18,500 was the most effective in reducing all the tested biological interactions. It was concluded that PEO 18,500 had a chain length that was optimal, using this technique for surface incorporation, to reduce protein adsorption and hence prevent protein-mediated biological interactions.
authors.affiliation: Department of Chemical Engineering, University of Texas, Austin 78712.
authors.forename: N P
authors.initials: NP
authors.lastname: Desai
authors.forename: J A
authors.initials: JA
authors.lastname: Hubbell
mesh_terms: D000327:Adsorption; D000418:Albumins / Q000378:metabolism; D001672:Biocompatible Materials; D005347:Fibroblasts / Q000378:metabolism; D066298:In Vitro Techniques; D008855:Microscopy, Electron, Scanning; D008970:Molecular Weight; D010973:Platelet Adhesiveness; D011092:Polyethylene Glycols / Q000737:chemistry*; D011093:Polyethylene Terephthalates; D011108:Polymers / Q000737:chemistry*; D012995:Solubility; D013499:Surface Properties
chemical_list: D000418:Albumins; D001672:Biocompatible Materials; D011093:Polyethylene Terephthalates; D011108:Polymers; D011092:Polyethylene Glycols