Fig. 5
From: Selection and identification of an ssDNA aptamer against influenza B virus hemagglutinin protein

Specificity assessment of aptamer A573 by ELISA. a The binding affinity of the aptamer A573 towards the specific influenza B virus and H1N1 HA proteins was assessed through ELISA. BSA served as a negative control (NC) in the experiments. Errors were computed based on three replicate trials. b ELISA was conducted to ascertain the Kd values for the influenza B virus HA protein aptamer. The data are presented as the mean ± standard deviation (SD) from three separate experiments