An antibacterial platform based on capacitive carbon-doped TiO₂ nanotubes after direct or alternating current charging.

ABSTRACT: Electrical interactions between bacteria and the environment are delicate and essential. In this study, an external electrical current is applied to capacitive titania nanotubes doped with carbon (TNT-C) to evaluate the effects on bacteria killing and the underlying mechanism is investigated. When TNT-C is charged, post-charging antibacterial effects proportional to the capacitance are observed. This capacitance-based antibacterial system works well with both direct and alternating current (DC, AC) and the higher discharging capacity in the positive DC (DC+) group leads to better antibacterial performance. Extracellular electron transfer observed during early contact contributes to the surface-dependent post-charging antibacterial process. Physiologically, the electrical interaction deform

SUBMITTER: Wang G 

PROVIDER: S-EPMC5967314 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature