Figure 3.
(a) CV staining images of biofilms and comparison of OD 570 value from CV staining (P < 0.05) (n = 3). (b) SEM images of bacteria biofilms formed on the sample surface when immersed into bacterial suspension (density of bacterial suspension: 107 CFU/mL, magnification: 10.0k× and 20.0k×; voltage: 5.0 kV). (c) Comparison of the colony number formed by live bacteria in biofilm (n = 3). (d) Confocal images of biofilm EPS, stained with Con-A Alexa Fluor (red) (n = 3). (All graphs represent the average data of multiple experiments).