2.4. Antimicrobial studies
Antibacterial studies of the dressings were carried out by colony count and zone inhibition methods, according to test method AATCC 100-1998 [20]. The antibacterial activity was monitored against a Gram-positive bacterial strain S. aureus and a Gram-negative bacterial strain E. coli. The antibacterial activity of OP-Gel-Aloe, OP-Gel-Curcumin and OP-Gel-Aloe Curcumin dressings was compared with that of a control dressing (unmodified nonwoven cotton fabric).