Fig. 7From: Clinical implications of microbial biofilms in chronic rhinosinusitis and orbital cellulitisPanel a showing the SEM picture of strong biofilm producing bacteria on the black polycarbonate membrane that did not allow perfusion of antibiotics, which is quite comparable in density to another strong biofilm without any antibiotic treatment (Panel b). SEM picture of polycarbonate membrane alone has been depicted in panel c for comparisonBack to article page