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(A) Optical images of spherical water droplets on uncoated and plasma-nanocoated L605 stents. TMS+NH3/O2 nanocoatings are shown after 1-day and 2-year aging periods. (B) Surface static contact angles for uncoated and TMS+NH3/O2 plasma-nanocoated L605 coupons aged for up to 8 weeks, with six stents per group. S01, S10, and S21 samples were designated for NH3/O2 plasma post-treatment with NH3:O2 gas ratios of 0:1, 1:0, and 2:1, respectively.
