Skip to main content
. 2017 Mar 28;12(3):e0174440. doi: 10.1371/journal.pone.0174440

Fig 3. Equivalent circuits utilized for fitting the EIS results obtained in the (a) absence and (b) presence of S. mutans species.

Fig 3

Rs: solution resistance in the vicinity of the test sample, R1: charge-transfer resistance of CoCr and NiCr alloys, CPE1: double-layer capacitance of CoCr and NiCr alloys, R2: resistance of the biofilm binding layer, CPE2: capacitance of the biofilm binding layer.