Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2024 Dec;23(12):2237-2253.
doi: 10.1007/s43630-024-00664-w. Epub 2024 Nov 29.

Antibacterial effect of new photocatalytically active "complex oxides/PMMA" composites under visible-light irradiation

Andrey Yu Shishkin  1 , Diana G Fukina  2   3 , Victoria O Rumyantseva  1 , Elena V Shilova  1 , Alexander S Ganov  1 , Irina A Shalaginova  4 , Pavel V Kornienko  4 , Evgeny V Suleimanov  1 , Ludmila L Semenycheva  1 , Vasily F Smirnov  1
Affiliations

Antibacterial effect of new photocatalytically active "complex oxides/PMMA" composites under visible-light irradiation

Andrey Yu Shishkin et al. Photochem Photobiol Sci. 2024 Dec.

Abstract

New photocatalytic materials based on complex oxides and a widely used and cheap polymer (PMMA) have been prepared. Among complex oxides previously investigated, the following have been used-RbTe1.5W0.5O6, CsTeMoO6, CsV0.625Te1.375O6, NaVMoO6, KVMoO6. For comparison, the binary oxides TiO2 and WO3 were used. The form of PMMA matrix was used as sponge and glass. The amount of powder in PMMA was selected based on retaining the polymer properties and getting the photocatalytic activity, which corresponds to 1% powder in sponge and 0.5% in glass. The "photocatalyst/PMMA" composites decompose the methylene blue under visible and UV light as well as possess antibacterial properties. The high electron-hole recombination was found out for composites photocatalysts, which significantly influences only on organic compounds decomposition in solutions. However, there is no direct dependence between effective photodegradation of simple organic molecules and antimicrobial properties. Inactivation of bacteria is determined by many factors such as active generated radicals, adsorption properties of the surface and the photocatalyst form, which can change the main active radicals. The comparison of photocatalytic action on organic solutions and bacteria of initial powders and PMMA composites allow choosing the most effective combination for further application. The most promising antimicrobial properties for composites have been obtained using compounds with β-pyrochlore structure.

Keywords: Antibacterial properties; Complex oxide; PMMA; Photocatalysis; Polymer compositions.

PubMed Disclaimer

Conflict of interest statement

Declarations. Conflict of interest: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

References

    1. Ali, N., Ali, F., & Khurshid, R. (2020). TiO2 nanoparticles and epoxy TiO2 nanocomposites: A review of synthesis, modification strategies, and photocatalytic potentialities. Journal of Inorganic and Organometallic Polymers and Materials, 30, 4829–4846.
    1. Stokes, H.T., Campbell, B.J., Hatch, D.M. FINDSYM, ISOTROPY Software Suite. iso.byu.edu.
    1. Egorikhina, M. N., Rubtsova, Y. P., & Aleynik, D. Y. (2020). Long-term cryostorage of mesenchymal stem cell-containing hybrid hydrogel scaffolds based on fibrin and collagen. Gels, 6, 44. - PubMed - PMC
    1. Chadwick, N., Sathasivam, S., Kafizas, A., Bawaked, S. M., Obaid, A. Y., Al-Thabaiti, S., Basahel, S. N., Parkin, I. P., & Carmalt, C. J. (2013). Combinatorial aerosol assisted chemical vapour deposition of a photocatalytic mixed SnO2/TiO2 thin film. Journal of Materials Chemistry A, 2(14), 5108–5116.
    1. Prakash, J., Sun, S., Swart, H., et al. (2018). Noble metals-TiO2 nanocomposites: From fundamental mechanisms to photocatalysis, surface enhanced Raman scattering and antibacterial applications. Applied Materials Today, 11, 82.

LinkOut - more resources