Fig 1.
Minimum concentrations of preparations inhibiting the growth of bacteria (MIC).
TAU–taurolidine, BIC–bicarbonate, CITR- trisodium citrate, PHMB-B–polyhexanide-betaine, R–no activity in the test concentration range, MRSA–methicillin-resistant Staphylococcus aureus, MSSA–methicillin-sensitive Staphylococcus aureus, MRCNS–methicillin-resistant coagulase-negative Staphylococcus hominis, EFs–Enterococcus faecalis, EFm–Enterococcus faecium, Eclo–Enterobacter cloacae, KP–Klebsiella pneumoniae, ATCC–American Type Culture Collection.
Fig 2.
Minimum concentrations [%] of the compounds able to eradicate biofilm (MBEC).
TAU–taurolidine, BIC–bicarbonate, CITR—trisodium citrate, PHMB-B–polyhexanide-betaine, R–no activity within the tested concentration range, MRSA–methicillin-resistant Staphylococcus aureus, MSSA–methicillin-sensitive Staphylococcus aureus, MRCNS–methicillin-resistant coagulase-negative Staphylococcus hominis, EFs–Enterococcus faecalis, EFm–Enterococcus faecium, EClo–Enterobacter cloacae, KP–Klebsiella pneumoniae, ATCC–American Type Culture Collection.
Fig 3.
Biofilm forming ability on the surface of a polyurethane catheter.
MRSA–methicillin-resistant Staphylococcus aureus, MSSA—methicillin-sensitive Staphylococcus aureus, MRCNS—methicillin-resistant coagulase-negative Staphylococcus hominis, EFs–Enterococcus faecalis, EFm–Enterococcus faecium, EClo–Enterobacter cloacae, KP–Klebsiella pneumoniae, ATCC–American Type Culture Collection.
Fig 4.
Anti-biofilm activity of compounds against biofilm formed on the dialysis catheter.
(a) 2% taurolidine, (b) 8.4% sodium bicarbonate (c) 30% trisodium citrate, (d) 0.1% polyhexanide with 0.1% betaine (PHMB-B). The red line shows the metabolic activity of the bacteria in control [%]; MRSA–methicillin-resistant Staphylococcus aureus, MSSA–methicillin-sensitive Staphylococcus aureus, EFs–Enterococcus faecalis, EFm–Enterococcus faecium, EClo–Enterobacter cloacae, KP–Klebsiella pneumoniae, ATCC–American Type Culture Collection.
Table 1.
Comparison of the compounds’ efficacy against biofilm formed on the catheter surface.