Table 1.

Capacitance data and corresponding detection limits for Holo-Tf and Apo-Tf

	Detection Limit (ng/mL)	Corresponding capacitance ΔC (PF/cm2)	RSD RSD% (n = 3)
Holo-Tf	0.04	−16.7 ± 1.3	7.8
Apo-Tf	0.15	−20.8 ± 1.4	6.7