Fig. 3.

Fig. 3. Verification of aptamer immobilization on the metal surfaces of SPREETA sensor. Immobilization of aptamer was carried out by the flow of aptamer solution at a flow rate of 0.1 ml/min through a 1/8" diameter Teflon tube using a syringe pump for 5 min. Panels A, SPREETA sensor with the immobilized aptamer; B, without aptamer.

© J. Microbiol. Biotechnol.