Abstract:Bivalent ions such as Ca2+ and Mg2+ are known to affect the structural
and mechanical properties of biofilms. In order to reveal the impact of
Fe2+ ions within the cultivation medium on biofilm development,
structure and stability, Bacillus subtilis biofilms were cultivated in
mini-fluidic flow cells. Two different Fe2+ inflow concentrations (0.25
and 2.5 mg/L, respectively) and wall shear stress levels (0.05 and 0.27
Pa, respectively) were tested. Biofilm structure was determined daily in
situ and non-invasiv… Show more
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