One-Dimensional TiO₂-B Crystals Synthesised by Hydrothermal Process and Their Antibacterial Behaviour on Escherichia coli

Figure 5

Antibacterial effect of one-dimensional TiO₂-B. (a) Effect of titanium compounds onto Escherichia coli colonies. Representative Petri dishes photographs of the antibacterial testing. (b) Colonies forming units (CFU) calculations per mL of initial media logarithmic graphs of each condition tested. (c) Normalized values of E. coli CFU viability at 10 minutes of incubation. One-way ANOVA and Tukey’s multiple comparisons test (, ). (d) Slope of the normalized CFU viability of each condition tested calculated at 10 minutes of treatment. (e) Raman spectra of one-dimensional TiO₂-B before and after 60 minutes of antibacterial test. Excitation wavelength of 632.8 nm and 5 mW laser power.