KHẢ NĂNG KHÁNG KHUẨN CỦA NANO SILICON DIOXIDE ĐƯỢC TỔNG HỢP TỪ VỎ TRẤU

Tóm tắt

Bacterial contamination and growth in the environment are potential health hazards demanding
disinfection. The rapid growth of nanotechnology is a possible approach to reduce the microbial
contamination on food surfaces and in food preparation environments. In this paper, the antibacterial
potential of silicon dioxide (SiO₂ NPs) nanoparticles synthesized from a renewable resource rice husk was
investigated. The morphology, crystallinity, and bonding in the synthesized nanoparticles were analyzed by
scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), and Fourier transform
infrared spectroscopy (FTIR), respectively. Nitrogen adsorption-desorption was used to determine the
surface area (Brunauer-Emmett-Teller (BET)), porosity, and capillary distribution of the materials. In vitro
assays quantified the growth inhibition of various target bacterial strains upon exposure to different
concentrations of the SiO₂ nanoparticles. The findings demonstrated that SiO₂ nanoparticles exhibited
notable antibacterial properties, suggesting potential applications in diverse fields such as medicine, food
preservation, and water purification, while simultaneously contributing to the valorization of agricultural
waste.