title: Water-stable diblock polystyrene-block-poly(2-vinyl pyridine) and diblock polystyrene-block-poly(methyl methacrylate) cylindrical patterned surfaces inhibit settlement of zoospores of the green alga Ulva.
abstract: Nanopatterned surfaces with hydrophobic and hydrophilic domains were produced using the diblock copolymer polystyrene-block-poly(2-vinyl pyridine) (PS-b-P2VP) and polystyrene-block-poly(methyl methacrylate) (PS-b-PMMA). The PS-b-P2VP diblock copolymer, mixed with the cross-linker benzophenone and spin-coated onto silicon wafers, showed self-assembled cylindrical structures, which were retained after UV treatment for cross-linking. The thin films displayed cylindrical domains after immersion in water. This study shows that pattern retention in water is possible for a long period of time, at least for two weeks in pure water and three weeks in artificial seawater. The PS-b-PMMA diblock showed self-assembled cylindrical structures. PS-b-P2VP and PS-b-PMMA cylindrical patterned surfaces showed reduced settlement of zoospores of the green alga Ulva compared to unpatterned surfaces. The copolymers were investigated using atomic force microscopy and X-ray photoelectron spectroscopy.
authors.affiliation: Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada.
authors.forename: Claudia M
authors.initials: CM
authors.lastname: Grozea
authors.forename: Nikhil
authors.initials: N
authors.lastname: Gunari
authors.forename: John A
authors.initials: JA
authors.lastname: Finlay
authors.forename: Daniel
authors.initials: D
authors.lastname: Grozea
authors.forename: Maureen E
authors.initials: ME
authors.lastname: Callow
authors.forename: James A
authors.initials: JA
authors.lastname: Callow
authors.forename: Zheng-Hong
authors.initials: ZH
authors.lastname: Lu
authors.forename: Gilbert C
authors.initials: GC
authors.lastname: Walker
mesh_terms: D002448:Cell Adhesion; D002465:Cell Movement; D008689:Methacrylates / Q000737:chemistry* / Q000378:metabolism*; D018625:Microscopy, Atomic Force; D036103:Nanotechnology; D011137:Polystyrenes / Q000737:chemistry* / Q000378:metabolism*; D011145:Polyvinyls / Q000737:chemistry* / Q000378:metabolism*; D013170:Spores / Q000378:metabolism*; D013499:Surface Properties; D044445:Ulva / Q000378:metabolism*; D014867:Water / Q000737:chemistry*; D014965:X-Rays
chemical_list: D008689:Methacrylates; D011137:Polystyrenes; D011145:Polyvinyls; C521881:poly(styrene)-block-poly(2-vinylpyrindine) diblock copolymer; C522509:polystyrene-block-poly(methyl methacrylate); D014867:Water