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Evaluation of PDL1-BSA conjugation. (A) The agarose gel was stained for DNA by GelRed and photographed under ultraviolet light. BSA alone was in Lane 1. Free PD-L1 aptamer was in Lane 2. PDL1-BSA was in Lane 3. (B) The zeta potential of BSA (top) and PDL1-BSA (bottom).
