Biocorrosion on nanofilms induces rapid bacterial motions via iron dissolution - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue ACS Central Science Année : 2021

Biocorrosion on nanofilms induces rapid bacterial motions via iron dissolution

Résumé

Stability and reactivity of solid metal or mineral surfaces in contact with bacteria are critical properties for development of biocorrosion protection and for understanding bacteria-solid environmental interactions. Here, we opted to work with nanosheets of iron nanolayers offering arbitrarily large and stable areas of contact that can be simply monitored by optical means. We focused our study on the sediments' bacteria, the strain Shewanella oneidensis WT MR-1, that served as models for previous research on electroactivity and iron-reduction effects. Data show that a sudden uniform corrosion appeared after an early electroactive period without specific affinities and that iron dissolution induced rapid bacterial motions. By extending the approach to mutant strains and three bacterial species, we established a correlation between corrosion onset and oxygen-depletion combined with iron reduction and demonstrated bacterial's extraordinary ability to transform their solid environments.
Fichier principal
Vignette du fichier
2021-11-09 Lherbette - Main Text & SI.pdf (2.43 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03421531 , version 1 (09-11-2021)

Identifiants

Citer

Marion Lherbette, Christophe Regeard, Christian Marliere, Eric Raspaud. Biocorrosion on nanofilms induces rapid bacterial motions via iron dissolution. ACS Central Science, 2021, 7 (11), pp.1949. ⟨10.1021/acscentsci.1c01126⟩. ⟨hal-03421531⟩
70 Consultations
85 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More