Figure 3.
(A) FTIR spectra of rapamycin, P50, P50R5, P50R20, and P50R42. (B) Contact angles of stainless steel (SS), Ti–O, P50, P50R5, P50R20, and P50R42. (C) SEM images of P50R5, P50R20, and P50R42 stents after post-expansion.
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