title: Visible-light-induced surface graft polymerization via camphorquinone impregnation technique.
abstract: A surface modification method that is particularly applicable to complexly shaped fabricated devices has long been awaited. In this article, we describe the visible-light-induced surface photograft polymerization technique by which an inner surface of the device is modified by visible-light irradiation through the external surface. Comphorquione, as a photoradical initiator, was impregnated on a segmented polyurethane surface by solvent soaking, followed by visible-light irradiation in the presence of monomers such as acrylamide and poly(ethylene glycol) methacrylate. The resultant surfaces were highly wettable with water, and surface chemical compositional analysis by X-ray photoelectron spectroscopy revealed that the surface was graft-polymerized with these monomers. The simple and widespread applicability of this surface modification technique to biomedical devices is discussed.
authors.affiliation: Department of Bioengineering, National Cardiovascular Center Research Institute, Fujishiro-dai 5-7-1, Suita, Osaka 565-8586, Japan.
authors.forename: Houcine
authors.initials: H
authors.lastname: Ziani-Cherif
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Abe
authors.forename: Kou
authors.initials: K
authors.lastname: Imachi
authors.forename: Takehisa
authors.initials: T
authors.lastname: Matsuda
mesh_terms: D001672:Biocompatible Materials / Q000138:chemical synthesis* / Q000737:chemistry / Q000528:radiation effects; D001769:Blood; D006354:Heart, Artificial; D006801:Humans; D066298:In Vitro Techniques; D008422:Materials Testing; D010777:Photochemistry; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry / Q000528:radiation effects; D013499:Surface Properties; D013729:Terpenes / Q000737:chemistry*
chemical_list: D001672:Biocompatible Materials; D011108:Polymers; D013729:Terpenes; C048339:camphoroquinone