Communication—Electrochemical Single Nano-Impacts of Electroactive Shewanella Oneidensis Bacteria onto Carbon Ultramicroelectrode
Year: 2020
Type: article
Abstract: Electrochemical single nano-impacts of electroactive Shewanella oneidensis bacteria at a 7 μ m diameter carbon fibre ultramicroelectrode in an aqueous potassium phosphate buffer (pH = 7.2) solution containing a redox active probe (potassium ferro- or ferricyanide) is reported. We present chronoamperometric measurements recorded at the ultramicroelectrode polarized at the potential of the steady-state current of the redox probe in solution (oxidation for K 4 Fe(CN) 6 or reduction for K 3 Fe(CN) 6 ) in the presence of bacteria. The shape of current transients associated to single bacteria nano-impacts is compared and discussed as a function of the redox probe in solution and of the ultramicroelectrode applied potential.
Institutions: Centre National de la Recherche Scientifique, Chimie et Interdisciplinarité, Synthèse, Analyse, Modélisation, Université de Nantes, Nantes Université, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Institut des Sciences Chimiques de Rennes, Université de Rennes
Language: English
Subfield: Environmental Engineering
Field: Environmental Science
Domain: Physical Sciences
Open Access status: bronze
Funder: Agence Nationale de la Recherche
OpenAlex ID: W3036145237