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Scanning electron microscopy (SEM) images and antioxidant characterization of ePTFE vascular grafts coated with POC and POCR. SEM images of (A) ePTFE grafts, (B) POC-coated ePTFE grafts, and (C) POCR-coated ePTFE graft. (D) Increased free radical scavenging by POCR-coated ePTFE grafts relative to POC. (E) POCR-coated ePTFE grafts inhibit lipid peroxidation, and the inhibition depends on the atRA content of the POCR. N = 3, Mean ± SD. *p < 0.05, **p < 0.01, ***p < 0.001.
