Current rectification with poly-L-lysine-coated quartz nanopipettes

Senkei Umehara, Nader Pourmand, Chris D. Webb, Ronald W. Davis, Kenji Yasuda, Miloslav Karhanek

研究成果: Article査読

158 被引用数 (Scopus)

抄録

Ion current rectification with quartz nanopipette electrodes was investigated through the control of the surface charge. The presence and absence of a positively charged poly-L-lysine (PLL) coating resulted in the rectified current with opposite polarity. The results agreed with the theories developed for current-rectifying conical nanopores, suggesting the similar underlying mechanism among asymmetric nanostructure in general. This surface condition dependence can be used as the fundamental principle of multi-purpose real-time in vivo biosensors.

本文言語English
ページ(範囲)2486-2492
ページ数7
ジャーナルNano Letters
6
11
DOI
出版ステータスPublished - 2006 11
外部発表はい

ASJC Scopus subject areas

  • バイオエンジニアリング
  • 化学 (全般)
  • 材料科学(全般)
  • 凝縮系物理学
  • 機械工学

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