Antimicrobial behavior of semifluorinated-quaternized triblock copolymers against airborne and marine microorganisms.
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.
Park
Daewon
D
Department of Materials Science & Engineering and Department of Microbiology, Cornell University, Ithaca, New York 14853, USA.
Finlay
John A
JA
Ward
Rebekah J
RJ
Weinman
Craig J
CJ
Krishnan
Sitaraman
S
Paik
Marvin
M
Sohn
Karen E
KE
Callow
Maureen E
ME
Callow
James A
JA
Handlin
Dale L
DL
Willis
Carl L
CL
Fischer
Daniel A
DA
Angert
Esther R
ER
Kramer
Edward J
EJ
Ober
Christopher K
CK
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
D000890:Anti-Infective Agents; D011108:Polymers; D005461:Fluorine