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Scanning electron microscopy (SEM) of AV-PVP-I2 with Aloe vera (AV), polyvinylpyrrolidone (PVP), iodine (I2), and sodium iodide (NaI) and the PGA sutures. From up to down: (a,b) AV-PVP-I2-NaI; (c) Control (plain PGA suture); (d) suture coated with AV-PVP-I2-NaI.
