Study on anti-biofouling properties of the surfaces treated with perfluoropolyether (PFPE)

Sooin Park, Sunil Kwon, Yeongmin Lee, Won Gun Koh, Jong Wook Ha, Sang Yup Lee

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Biofouling by marine organisms such as algae and barnacles causes lots of significant problems in marine systems such as a rise of the maintenance-repair cost for the ship and the marine structures. In this work, a fluoropolymer, perfluoropolyether (PFPE), was applied as an anti-biofouling coating material that prevents the adhesion of marine organisms and facilitates the removal of them. Water contact angles of various surfaces were tested to examine the hydrophobicity of the PFPE-modified surface. The PFPE-modified surface showed the water contact angle of 64.5° which is a remarkable rise from 46.7° of amine-treated surface. When the substrate was treated with PFPE, the adhesion on the of the barnacle and other marine organisms were repressed around 15% by the enhanced hydrophobicity. In addition, the removal the of the adhered marine organisms were better comparing to that of the surface prepared by PDMS. Surfaces of the substrate treated by PFPE were characterized through physical and chemical methods to analyze the biofouling results. Degree of biomolecular adhesion to the substrate was quantified by the measurement the fluorescence intensity of marine organisms dyed with green fluorescence. PFPE is expected to be applicable not only to anti-biofouling systems but also to medical devices where the prevention of protein adhesion is required.

Original languageEnglish
Pages (from-to)71-76
Number of pages6
JournalApplied Chemistry for Engineering
Volume23
Issue number1
Publication statusPublished - 2012 Jan 1

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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