Inter-Aromatic Distances in Geobacter Sulfurreducens Pili Relevant to Biofilm Charge Transport

Hengjing Yan, Chern Chuang, Andriy Zhugayevych, Sergei Tretiak, Frederick W. Dahlquist, Guillermo C. Bazan

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)

Abstract

Geobacter sulfurreducens pili are implicated in facilitating electron transfer to electrode surfaces. Comparisons are made between the conductivity of pili and that of doped organic semiconductors, invoking mechanisms such as "electron hopping" or "metallic conduction". Analysis of inter-aromatic distances in these pili models shows that charge-carrier transport involving only the π-conjugated system of GS pili is negligible.

Original languageEnglish
Pages (from-to)1908-1911
Number of pages4
JournalAdvanced Materials
Volume27
Issue number11
DOIs
Publication statusPublished - 18 Mar 2015
Externally publishedYes

Keywords

  • conductive pili
  • electron transfer rates
  • Geobacter sulfurreducens
  • inter-aromatic distances
  • protein modeling

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