Fig. 2

Evaluation of the conjugation of DNA aptamers to albumin (BSA). A Evaluation of Apt-BSA conjugation by electrophoresis in agarose gel, which was stained for DNA by GelRed and visualized under UV light. Zeta potential of B albumin (BSA), C BSA conjugated with PD-1 aptamer, and D BSA conjugated with PD-L1 aptamer by DLS. Aptamer-modified BSA tended to be more negatively charged