Table 1. Equivalent Circuit Fit Values for One of the Active and Control Sensors.

	active sensor			control sensor
parameters	after antibody immobilization and blocking with casein	after capture from 106 cfu/mL	After capture from 108 cfu/mL	after antibody immobilization and blocking with casein	after capture from 106 cfu/mL	after capture from 108 cfu/mL
R1 (Ω)	12541	7864	6864	∼0	∼0	∼0
R2 (Ω)	1807	1176	932.3	1713	1259	913
Ws1-R (Ω)	536160	497200	512230	999220	980110	982310
Ws1-T	4.9 × 10–3			7.2 × 10–3
Ws1-P	0.77			0.56
R2 (Ω)	25			25
C1 (F)	2.4 × 10–9			2.2 × 10–9
C2 (F)	1.38 × 10–9			1.4 × 10–9