Table 1. Electrochemical parameters for the GF anodes of the FT and non-FT μMFCs using CV and EIS studies.

Culture medium	Device type	Peak current (mA)	Diffusion coefficient D0 (cm2·s−1)	Charge transfer resistance Rct (kΩ)	Electron transfer rate constant k0 (cm·s−1)
TSB	FT	0.29	2.38 × 10−10	1.23	3.24 × 10−11
	Non-FT	0.08	0.20 × 10−10	1.44	1.94 × 10−12
Lactate defined minimal medium	FT	0.15	6.28 × 10−9	0.88	1.13 × 10−10
	Non-FT	0.07	1.40 × 10−9	2.96	2.35 × 10−11