Figure 8.
Antimicrobial activity of MWCNTs and DWCNTs on microbial cells based on concentration and treatment time. Microbial viability assay was carried out after incubation of microbial cells (~107–108 CFU/mL) with desired concentration (A,B) and treatment time at 100 μg/mL (C,D) of MWCNTs and DWCNTs for 24 h in case of Staphylococcus aureus, Pseudomonas aeruginosa, and Klebsiella pneumoniae and 48 h for Candida albicans. The survival of cells was examined by a colony counting method and stated as a percentage with respect to microbial cells (untreated) incubated with DW. The control was microbial cells treated with distilled water.