Assessment of the anti-biofouling potentials of a copper iodide-doped nylon mesh

Tetsuya Sato, Yoshie Fujimori, Tsuruo Nakayama, Yasuo Gotoh, Yoshihiko Sunaga, Michiko Nemoto, Tadashi Matsunaga, Tsuyoshi Tanaka*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


We propose a copper iodide (CuI)-doped nylon mesh prepared using polyiodide ions as a precursor toward anti-biofouling polymer textile. The CuI-doped nylon mesh was subjected to the prevention of biofouling in marine environments. The attachment of the marine organisms was markedly inhibited on the CuI-doped nylon mesh surface until 249 days. Scanning electron microscopy-energy dispersive X-ray analysis indicated that copper compounds were maintained in the nylon mesh after the field experiment, although copper content in the nylon mesh was reduced. Therefore, the copper ions slowly dissolved from nylon mesh will contribute to the long-term prevention of biofouling. Furthermore, electron spin resonance analysis revealed the generation of reactive oxygen species (ROS) from CuI-doped nylon mesh after the field experiment. One of the possibilities for toxic action of copper ions will be the direct effect of Cu +-induced ROS on biofilm forming on nylon mesh surface. The proposed polymer textile can be applied to fishing and aquafarming nets, mooring rope for ship, or silt fence to restrict polluted water in marine environments.

Original languageEnglish
Pages (from-to)1043-1050
Number of pages8
JournalApplied Microbiology and Biotechnology
Issue number4
Publication statusPublished - 2012 Aug
Externally publishedYes


  • Anti-biofouling
  • Copper iodide
  • Nylon mesh
  • Reactive oxygen species

ASJC Scopus subject areas

  • Biotechnology
  • Applied Microbiology and Biotechnology


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