Fig. 5. Representative fluorescence microscopic images of E. coli and S. aureus. E. coli and S. aureus were grown for 24 h on LDPE (control) and LDPE composites with 15 and 20% of BN–LDPE composites and stained with live/dead bacterial viability kit and images were acquired by using fluorescence microscope. Green color represents the live bacterial cells and red color represents the dead bacterial cells.