Amperometric algal Chlorella vulgaris cell biosensors based on alginate and polypyrrole-alginate gels

Rodica E. Ionescu, Khalil Abu-Rabeah, Serge Cosnier, Claude Durrieu, Jean Marc Chovelon, Robert S. Marks

Research output: Contribution to journalArticlepeer-review

50 Scopus citations

Abstract

The successful development and analytical performances of two biosensor configurations based on the entrapment of algal cells of Chlorella vulgaris into either a regular alginate gel or a newly synthesized pyrrole-alginate matrix are reported. These biosensors were compared in terms of their amperometric current measurements to p-nitrophenyl phosphate when used as substrate for the detection of an algal alkaline phosphatase activity. The high stability of the pyrrole-alginate gel when compared to that of the alginate coating is herein demonstrated.

Original languageEnglish
Pages (from-to)1041-1046
Number of pages6
JournalElectroanalysis
Volume18
Issue number11
DOIs
StatePublished - 1 Jun 2006

Keywords

  • Algae
  • Alginate
  • Amperometry
  • Chlorella vulgaris
  • Pyrrole-alginate

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