Sol-gel Synthesis and Characterization of Titanium Dioxide Nanoparticles at 400 oC and Their Biological Applications
DOI:
https://doi.org/10.71107/1pvqv765Keywords:
Titanium Dioxide Nanoparticles (TiO2 NPs), Sol-gel Synthesis, BiocompatibilityAbstract
The objective of this work is to regulate the size preparation TiO2 NPs for a comprehensive study on their size-dependant properties and bioapplications. TiO2 NPs were prepared by sol–gel method using 2-propanol and titanium tetra-isopropoxide as precursors and then calcined at 400 °C for two hours. The structural purity, crystallinity, shape and band gap of synthetized NPs were investigated by means of X-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR), UV–visible spectrscopy (UV-Vis) and scanning electron microscopy (SEM). From the XRD pattern, anatase phase with average crystalline size of 9.06 nm and 98% crystallinity were established. The UV-Vis spectra indicated the E g values to be in 3.02-4.81 eV. The prepared TiO2 NPs showed potent antibacterial activity towards Staphylococcus aureus and Escherichia coli and good antifungal action against Candida albicans. In addition, they showed a relatively lower hemolytic effect and were tested for cytotoxicity in the A549 cell line to have good biocompatibility. These results indicate that TiO2 NPs have promising applications in antimicrobial therapy and clinical practice.
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Copyright (c) 2026 Muhammad Anwar Khan, Ubaid Ullah Khan Khan, Dr.Abid Ali Khan, Dr.Khizar Hayat, Sumaira Mehreen (Author)

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