Figure 6

(A) The selectivity of the sensor (a) PSA, (b) PSA + CEA, (c)PSA + lgG, and (d) PSA + BSA. (B) The stability of the sensor.

(A) The selectivity of the sensor (a) PSA, (b) PSA + CEA, (c)PSA + lgG, and (d) PSA + BSA. (B) The stability of the sensor.