By proving the bactericidal effects of a low-concentration titanium dioxide (TiO(2)) particle mixture against Staphylococcus aureus, we hope to ultimately apply a mixture of this type as part of a clinical treatment regimen. A bacterial suspension of S. aureus 1 x 10(5) CFU/ml was added dropwise to a TiO(2) particle mixture (19 ppm TiO(2)) and irradiated by ultraviolet (UV) light. The colony-forming units were counted and the bacterial survival rate was calculated. In the control sample, the bacterial survival rate was 83.3% even after 120 min. In the TiO(2) mixture + UV sample, the bacteria count dropped sharply, reaching 17.3% of the baseline value at 30 min and 0.4% at 60 min. TiO(2) particles dispersed in water mixtures are known to elicit highly efficient UV absorption and greater bonding to bacteria. A reaction of the TiO(2) with another oxidizer altered the aqueous pH and accelerated the photocatalytic chemical reaction. The TiO(2) particle mixture showed high antibacterial action against S. aureus even at a low concentration.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Investigation of structural, optical, antibacterial, and dielectric properties of sol-gel and biosynthesized TiO nanoparticles.
Heliyon
December 2024
Department of Glass & Ceramic Engineering, Rajshahi University of Engineering & Technology (RUET), Rajshahi-6204, Bangladesh.
This study explored the structural, optical, antibacterial, and dielectric properties of TiO nanoparticles synthesized using two distinct approaches: sol-gel and biosynthesis. Density functional tight binding (DFTB+) and density functional theory (DFT) calculations were employed alongside experimental techniques to gain a comprehensive understanding of the electronic-property relationships. peel extract was utilized for the biosynthesis method.
View Article and Find Full Text PDFIn situ formed Se-TiO as a highly reusable photocatalyst for selenium reduction and removal from industrial wastewater.
Chemosphere
December 2024
Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College St., Toronto, Ontario, M5S 3E5, Canada; Institute for Water Innovation, University of Toronto, 55 St. George St., Toronto, Ontario, M5S 1A4, Canada; Institute of Biomedical Engineering, University of Toronto, 164 College St., Toronto, Ontario, M5S 3G9, Canada. Electronic address:
Selenium (Se) release from anthropogenic activities such as mining, power generation, and agriculture poses considerable environmental and ecological risks. Increasing prevalence and awareness of Se-related issues have driven the development of many innovative Se treatment technologies. Photocatalysis has shown promise towards Se removal from industrial wastewaters with minimal residuals, and is generally considered a low-cost, robust, non-toxic, and potentially solar-powered method.
View Article and Find Full Text PDFGreen Synthesis of Titanium Dioxide Nanoparticles Using Root Bark Extract: Photocatalytic Degradation and Antibacterial Activities.
Materials (Basel)
November 2024
Department of Engineering Materials and Biomaterials, Faculty of Mechanical Engineering, Silesian University of Technology, 44-100 Gliwice, Poland.
The root bark extract of the plant in the green synthesis of titanium dioxide nanoparticles (TiO NPs) for photocatalytic degradation of toxic pollutants and antibacterial activities was implemented in this study. The root bark extract served as a novel capping and reducing agent for the first time. Characterization of the TiO NPs was conducted by using visual observation, ultraviolet visible spectrometry (UV-Vis), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM) techniques, confirming their successful synthesis.
View Article and Find Full Text PDFA Review on Properties of Electrodeposited Nickel Composite Coatings: Ni-AlO, Ni-SiC, Ni-ZrO, Ni-TiO and Ni-WC.
Materials (Basel)
November 2024
Faculty of Mechanical Engineering, Wrocław University of Science and Technology, 50-370 Wrocław, Poland.
Article Synopsis
- Nickel electrodeposition is a common method for creating thin films that can be enhanced by adding elements or particles, resulting in nickel composite coatings.
- These composite coatings demonstrate improved properties such as corrosion resistance, hardness, and wear resistance compared to plain nickel coatings.
- The inclusion of particles like AlO, SiC, ZrO, WC, and TiO enhances mechanical strength and decreases grain size in the nickel matrix, offering better protection and performance for various substrates.
Application of Surface Complexation Modeling to Investigate the Mechanism of Cu Adsorption on TiO, AlO, and SiO Under High Surface Coverage.
Molecules
November 2024
Department of Physical Education and Health, Józef Piłsudski University of Physical Education in Warsaw, Akademicka 2, 21-500 Biała Podlaska, Poland.
We have shown that the adsorption of Cu ions on various metal oxides, depending on the pH of the solution, can be described assuming the formation of only two surface complexes with surface hydroxyl groups SOH: SOCu(OH) and SOCu. Using an ion-selective electrode for Cu, we determined the adsorption edges, i.e.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!