Fabrication of Zinc Doped Titanium Dioxide Nanoparticles to Inhibit <i>Escherichia coli</i> Growth and Proliferation of Liver Cancer Cells (HepG2)
Tariq Munir, Arslan Mahmood, Numan Abbas, Amjad Sohail, Yasin Khan, Saba Rasheed, Irfan Ali
Abstract
High Resolution Image Download MS PowerPoint Slide The current research is related to the synthesis of different concentrations (0, 3, and 7 wt %) Zn doped TiO 2 -NPs by using the coprecipitation method. The rutile, anatase crystal structure appeared on different diffracted peaks in TiO 2 -NPs, and the crystallite size (12 to 24 nm) was calculated by using XRD analysis. The spherical, irregular, porous grain-like surface morphology was observed by SEM analysis, and the identification of different functional modes such as hydroxyl, −C–O, −C–O–C, and Ti–O–Ti attached on the surface of the spectrum was examined via FTIR analysis. After that, the increased absorbance of TiO 2 -NPs by increasing the Zn concentration in TiO 2 -NPs was observed by UV–visible analysis. After that, the well diffusion method was performed to measure antibacterial activity, and the MTT assay was used to investigate anticancer activity against the HepG2 cell line. It was observed that the inhibition zone of S. aureus and E. coli increased by increasing the concentration of Zn-doped TiO 2 -NPs from 2 to 32 mm. The 7 wt % Zn-doped TiO 2 -NPs provided significant anticancer activity against the liver cancer cell line and antibacterial activity. In the future, Zn doped TiO 2 -NPs can be used for in vitro analysis against different microbial and animal models for the treatment of cancer.