Preparation of a colored conductive paint electrode for electrochemical inactivation of bacteria

Tae Kyu Lim, Tadataka Murakami, Makoto Tsuboi, Kazuharu Yamashita, Tadashi Matsunaga*

*この研究の対応する著者

研究成果: Article査読

9 被引用数 (Scopus)

抄録

In this study we describe the preparation of a colored conductive paint electrode containing In2O3, SnO2, or TiO2 for the electrochemical inactivation of marine bacteria. When each colored conductive paint electrode was immersed in seawater containing 106 cells/mL for 90 min, marine microbe attachment to the TiO2/SnO2/Sb electrode surface was minimal. Preparation of electrodes coated with 40% particles is shown to be more cost-effective, and because of their more translucent coatings they can be painted over with bright colors. When a potential of 1.0 V was applied for 30 min to the colored conductive paint electrode (40 wt% TiO2/SnO2/Sb) in sterile seawater, the survival ratio decreased to 55%. When 1.5 V vs. saturated calomel electrode (SCE) was applied, all attached cells were inactivated. Chlorine was not detected below an applied potential of 1.5 V. A change in pH was not observed in the range of 0 to 1.5 V. This method might be effective for preventing bacterial cell accumulation and the formation of biofilms.

本文言語English
ページ(範囲)299-304
ページ数6
ジャーナルBiotechnology and Bioengineering
81
3
DOI
出版ステータスPublished - 2003 2月 5
外部発表はい

ASJC Scopus subject areas

  • バイオテクノロジー
  • 微生物学

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