Fig. 4

(A) Durability of PDMS-PIM biomaterial in microbial co-culture with continuous challenge –inoculation at 48–72 h interval. The biomaterial was challenged with microbes (S. aureus and C. albicans) at 48–72 h intervals. The antimicrobial potency evaluation was carried out at 15 days, 30 days and 60 days endpoint. (B) Recycle/Reusable potential of recovered PDMS-PIM disk. Each cycle indicates a 15 days period that the biomaterials were challenged with microbial at 48–72 h interval, periodically, before being assessed for the antimicrobial potency. The results are expressed as mean and standard deviation of three replicates. * indicates zero (0) CFU on the agar plate for undiluted samples