Preparation of iron oxide nanoparticles-decorated carbon nanotube using laser ablation in liquid and their antimicrobial activity

Figures & data

Figure 1. Composite nanoparticles colloidal prepared for 20 min at laser energy of : (a) 80 mJ with different iron oxide nanoparticles concentration; (b) 200 mJ with different iron oxide nanoparticles concentration.

Figure 2. XRD pattern of carbon nanotube prepared for 20 min at laser energy 80 mJ and 200 mJ and with doped concentration of 43% and 47% iron oxide nanoparticles.

Figure 3. TEM images of carbon nanotube prepared for 20 min at laser energy of (a) 80 mJ and (b) 200 mJ.

Figure 4. TEM images of composite carbon nanoparticles/Iron oxide nanoparticles for concentration doped of (a) 43% iron oxide nanoparticles and (b) 47% iron oxide nanoparticles.

Figure 5. Growth curves of testing organisms in broth medium in the presence of carbon nanotube of 400 μg mL⁻¹ concentrations doped with different concentrations of iron oxide (a) an optical density at 600 nm, (b) cell viability, and (c) inhibition rate %.

Figure 6. Growth curves of tested organisms in broth medium in the presence of carbon nanotube of 800 μg mL⁻¹ concentrations doped with different concentrations of iron oxide nanopartcles: (a) an optical density at 600 nm, (b) cell viability, and (c) inhibition rate %.

Figure 7. The antibacterial activity induced by composite carbon nanotube/iron oxide particles against two Gram-negative pathogens: (a) histograms and (b) images of inhibition zone.

Figure 8. The antibacterial activity induced by carbon nanotube/iron oxide nanoparticles against two Gram-negative pathogens: (a) histograms and (b) images of inhibition zone.

Figure 9. Photographic illustration at different days of control nanotube of 400 μg mL⁻¹ concentration and carbon nanotube doped with 43% of iron oxide nanopartcles.