Persistency of bacterial colonization prevention after NTAP treatment.

(A) Representative images of growth of S. aureus and E. coli on agar plates 10 days after 7-minute NTAP treatment. Note that no growth of S. aureus and E. coli was observed PDO and PGCL sutures even after 10 day later NTAP treatment on TSA plates. Sutures on the left sides of petri dishes are untreated (control suture) and sutures on the right sides of petri dishes are NTAP treated samples. (B) Logarithmic growth of S. aureus on per cm suture fragment 1, 3, 5, 7 and days after 7-minute NTAP treatment. Colonization of S. aureus on PDO and PGCL sutures was prevented at given time-points, however S. aureus adhered on PGLA and PGA sutures even one day after 7-minute NTAP treatment. (C) Logarithmic growth of E. coli on per cm suture fragment 1, 3, 5, 7 and days after 7-minute NTAP treatment. Colonization of S. aureus on PDO and PGCL sutures was prevented at given time-points, while S. aureus colonization on PGLA and PGA sutures increases as the delay time increases.