title: Antimicrobial behavior of semifluorinated-quaternized triblock copolymers against airborne and marine microorganisms.
abstract: Semifluorinated-quaternized triblock copolymers (SQTCs) were synthesized by chemical modification of polystyrene-block-poly(ethylene-ran-butylene)-block-polyisoprene ABC triblock copolymers. Surface characterization of the polymers was performed by X-ray photoelectron spectroscopy (XPS) and near-edge X-ray absorption fine structure (NEXAFS) analysis. The surface of the SQTC showed very high antibacterial activity against the airborne bacterium Staphylococcus aureus with >99 % inhibition of growth. In contrast in marine fouling assays, zoospores of the green alga Ulva settled on the SQTC, which can be attributed to the positively charged surface. The adhesion strength of sporelings (young plants) of Ulva and Navicula diatoms (a unicellular alga) was high. The SQTC did not show marked algicidal activity.
authors.affiliation: Department of Materials Science & Engineering and Department of Microbiology, Cornell University, Ithaca, New York 14853, USA.
authors.forename: Daewon
authors.initials: D
authors.lastname: Park
authors.forename: John A
authors.initials: JA
authors.lastname: Finlay
authors.forename: Rebekah J
authors.initials: RJ
authors.lastname: Ward
authors.forename: Craig J
authors.initials: CJ
authors.lastname: Weinman
authors.forename: Sitaraman
authors.initials: S
authors.lastname: Krishnan
authors.forename: Marvin
authors.initials: M
authors.lastname: Paik
authors.forename: Karen E
authors.initials: KE
authors.lastname: Sohn
authors.forename: Maureen E
authors.initials: ME
authors.lastname: Callow
authors.forename: James A
authors.initials: JA
authors.lastname: Callow
authors.forename: Dale L
authors.initials: DL
authors.lastname: Handlin
authors.forename: Carl L
authors.initials: CL
authors.lastname: Willis
authors.forename: Daniel A
authors.initials: DA
authors.lastname: Fischer
authors.forename: Esther R
authors.initials: ER
authors.lastname: Angert
authors.forename: Edward J
authors.initials: EJ
authors.lastname: Kramer
authors.forename: Christopher K
authors.initials: CK
authors.lastname: Ober
mesh_terms: D000391:Air Microbiology; D000890:Anti-Infective Agents / Q000494:pharmacology*; D002470:Cell Survival / Q000187:drug effects; D017377:Diatoms / Q000187:drug effects*; D056890:Eukaryota / Q000187:drug effects*; D005461:Fluorine / Q000737:chemistry* / Q000494:pharmacology*; D008386:Marine Biology; D008422:Materials Testing; D011108:Polymers / Q000737:chemistry*; D013211:Staphylococcus aureus / Q000187:drug effects*; D014871:Water Microbiology
chemical_list: D000890:Anti-Infective Agents; D011108:Polymers; D005461:Fluorine