Local pH measurement at wet mineral-bacteria/air interface

Djihad Oulkadi (1) , Sylvie Banon (1) , Christian Mustin (1) , Mathieu Etienne (2)

1 LIEC - Laboratoire Interdisciplinaire des Environnements Continentaux
2 LCPME - Laboratoire de Chimie Physique et Microbiologie pour l'Environnement

Scanning electrochemical microscopy (SECM) was used to measure local pH in the thin water film located at the mineral-Rahnella aquatilis RA1/air interface. The method allowed differentiating acidification kinetics in conditions of natural soils and sediments where water can form film around mineral. (C) 2014 Elsevier B.V. All rights reserved.

Mots clés: Bacteria; SECM; Weathering

Domaines: Interfaces continentales, environnement; Sciences de l'environnement

Djihad Oulkadi, Sylvie Banon, Christian Mustin, Mathieu Etienne. Local pH measurement at wet mineral-bacteria/air interface. Electrochemistry Communications, 2014, 44, pp.1-3. ⟨10.1016/j.elecom.2014.04.001⟩. ⟨hal-01077383⟩