Graphite epoxy composite electrodes modified with bacterial cells

Ülkü Anik Kirgöz, Dilek Odaci, Suna Timur, Arben Merkoçi, Nurdan Pazarlioǧlu, Azmi Telefoncu, Salvador Alegret

Research output: Contribution to journalArticleResearchpeer-review

27 Citations (Scopus)


The modification of a graphite-epoxy composite electrode (GECE) with bacterial cells along with an analytical application are presented. Pseudomonas putida DSM 50026 was used as a biological component and the measurement was based on the respiratory activity of the cells. The optimization of working conditions of resulting biosensor (including pH and temperature) was conducted and the limit of detection was calculated as 7 μM phenol based on the signal to noise ratio. Then the system was applied for xenobiotic detection. Resulting sample signals were found to be very similar with the standard solutions having the same concentration while the recoveries of the spiked samples were close to 100%. © 2006.
Original languageEnglish
Pages (from-to)128-131
Issue number1
Publication statusPublished - 1 Sep 2006


  • Graphite-epoxy composite electrode
  • Microbial biosensor
  • Pseudomonas putida


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