Antifungal properties of TiO₂ nanoparticle as prevention wilt disease Fusarium oxysporum under UV light

In the present study, TiO₂ nanoparticles were synthesized by ultrasonic cleaning bath method using titanium tetraisopropoxide (TTIP) as a precursor. TiO₂ nanoparticle was used as an antifungal candidate against Fusarium oxysporum, which causes wilting disease in plants. TiO₂ nanoparticles were characterized using X-Ray Diffraction (XRD) and Scanning Electron Microscope (SEM). The X-ray diffraction pattern showed the diffraction peaks associated with the anatase TiO₂ crystal field. In addition, it was found that TiO₂ nanoparticles were distributed uniformly and globular. TiO₂ nanoparticles indicated a better antifungal activity against Fusarium oxysporum under UV irradiation than without UV irradiation. The minimum mortality rate using TiO₂ nanoparticles without irradiation is 36.25% at a concentration of 8%. Meanwhile, with UV irradiation, the minimum mortality of rate was 88.46% with the same concentration. Our findings indicated that TiO₂ nanoparticles with UV irradiation have antifungal activity against Fusarium oxysporum.