Electrochemical Techniques and Applications to Characterize Single‐ and Multicellular Electric Microbial Functions

Spatially Resolved Electron Transport through Anode‐Respiring Geobacter sulfurreducens Biofilms: Controls and Constraints

“…The electron hopping process in the presence of redox gradients (here the concentration gradient of Cytred) is commonly modeled as analogous to a random walk (second term on the right-hand side of Eq (9)), and the observed exponential dependence of the current on the electric potential gradient [71,73] is represented by last term in Eq (9). Thus, electron conduction via electron hopping driven by redox gradient and electric field [73,107] results in: ), δ is the spatial distance between adjacent redox-active molecules, E is the local electric field, and β is the charge transfer coefficient (see Table 1). The electric potential in the biofilm (ϕnet) is described by…”

“…[41] The electron hopping process in the presence of redox gradients (here the concentration gradient of Cyt red ) is commonly modeled as analogous to a random walk (second term on the right-hand side of Eq (9)), and the observed exponential dependence of the current on the electric potential gradient [71,73] is represented by last term in Eq (9). Thus, electron conduction via electron hopping driven by redox gradient and electric field [73,107] results in:…”

Spatially Resolved Electron Transport through Anode‐Respiring Geobacter sulfurreducens Biofilms: Controls and Constraints

“…The electron hopping process in the presence of redox gradients (here the concentration gradient of Cytred) is commonly modeled as analogous to a random walk (second term on the right-hand side of Eq (9)), and the observed exponential dependence of the current on the electric potential gradient [71,73] is represented by last term in Eq (9). Thus, electron conduction via electron hopping driven by redox gradient and electric field [73,107] results in:…”