Fig. 4.

Fig. 4. Responses of the SPREETA sensor with different concentrations of aptamer. After immobilization of aptamer on the metal surface of SPREETA sensor PGP was injected to flow with different concentrations for 10 min. Panels A, 10 μg/ml of PGP; B, 5 μg/ml of PGP; C, 1 μg/ml of PGP. Symbols ━, 10 pM of aptamer was immobilized on a metal surface; ━, 1 pM of aptamer; ■ · ■, 0.1 pM of aptamer; ■■■■, 0.01 pM of aptamer.

© J. Microbiol. Biotechnol.