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Fluorescence microscopy images of the bacterial biofilm matrix at the excitation/ emission wavelength of 560±20 nm/630±30 nm using SYPRO® Ruby biofilm matrix stain. A-D 10× magnification. A) 0% NAC B) 0.1% NAC C) 1% NAC D) 10% NAC. Increase concentrations of NAC at 1% and 10% caused a marked reduction of the biofilm matrix with the dispersed colonies of bacteria.
