Abstract
Systematic evolution of ligands by exponential enrichment (SELEX), an in vitro strategy which involves generation of aptamer. Aptamer is an artificial antibody, behave very similar to antibody and several instances reported to be better than antibodies. In this study, an attempt has been made to generate aptamer against factor IX, a potential candidate involve in human blood coagulation cascade. Totally, 10 selection cycles have been performed and molecules from 10th cycle have shown higher binding affinity with factor IX as 56 and 68% against the factor IX concentrations of 100 and 200 nM, respectively. With these higher binding affinities, it is clear that these molecules have higher potential for sensing applications.
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