Prevention of marine biofouling using a conductive paint electrode

Tadashi Matsunaga, Tsuruo Nakayama, Hitoshi Wake, Minako Takahashi, Mina Okochi, Noriyuki Nakamura

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

Conductive paint electrode was used for marine biofouling on fishing nets by electrochemical disinfection. When a potential of 1.2 V vs. a saturated calomel electrode (SCE) was applied to the conductive paint electrode, Vibrio alginolyticus cells attached on the electrode were completely killed. By applying a negative potential, the attached cells were removed from the surface of the electrode. Changes in pH and chlorine concentration were not observed at potentials in the range -0.6 -1.2 V vs. SCE. In a field experiment, accumulation of the bacterial cells and formation of biofilms on the electrode were prevented by application of an alternating potential, and 94% of attachment of the biofouling organisms was inhibited electrically on yarn used for fishing net coated with conductive paint.

Original languageEnglish
Pages (from-to)374-378
Number of pages5
JournalBiotechnology and Bioengineering
Volume59
Issue number3
DOIs
Publication statusPublished - 1998 Aug 5
Externally publishedYes

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Keywords

  • Alternating potential
  • Conductive paint electrode
  • Fishing net
  • Prevention of marine biofouling

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • Applied Microbiology and Biotechnology

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