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Binding affinity of the 29 randomly selected aptamers to HSC-T6 cells. The aptamers were annealed at the 3' end with a complementary oligonucleotide labeled with Alexa Fluor®-488. The aptamers were incubated with HSC-T6 cells at 37℃ for 1 h, and labeled cells were counted using flow cytometry. Data are presented as mean ± SD (n=3).
