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(a) Charge-transfer resistance changes (ΔR) of TS-modified Au electrodes as a function of telomerase enzymatic reaction time for (■) 2.5 × 106 cells/mL, (△) 1.0 × 106 cells/mL, (▼) 5 × 105 cells/mL, (○) 2.5 × 105 cells/mL, and (●) heated extract or negative control. (b) Relative change in charge-transfer resistance to enzymatic reaction time for (A) 2.5 × 106 cells/mL, (B) 1.0 × 106 cells/mL, (C) 5.0 × 105 cells/mL, (D) 2.5 × 105 cells/mL, and (E) heated extract.
