Microbiologically active nanocomposite media

Vitalii Petranovskii; Lyudmila Panina; Eugenia Bogomolova; Galina Belostotskaya

doi:10.1117/12.506532

9 July 2003 Microbiologically active nanocomposite media

Vitalii Petranovskii, Lyudmila Panina, Eugenia Bogomolova, Galina Belostotskaya

Proceedings Volume 5218, Complex Mediums IV: Beyond Linear Isotropic Dielectrics; (2003) https://doi.org/10.1117/12.506532
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

The most recent approach to the development of novel antimicrobial and antifungal agents is based on the application of synthetic and natural zeolites, because zeolites are known to be the carrier and slow releaser of the heavy metals with olygodynamic properties. The microbiological activity of the ion-exchanged zeolites is attributed to the ionic state of the metal sreleased from the zeolites by ion re-exchange. In the present work we used low cost natural clinoptilolite (Cli) as a substrate for copper and silver in different states. The state of oxidation of the exchanged metal in zeolite with supported Cu and Ag species (in the form of cations, small clusters, sub-coloidal particles, large particles) in order to fit them to fulfill the following criteria: to demonstrate their high protective abilities against fungi and long-term stability. The study of structure of samples with XRD, UV-visible spectroscopy, FTIR, their stability with temperature and during storage was carried out for obtaining the correct correlation with microbiological activity.

Citation Download Citation

Vitalii Petranovskii, Lyudmila Panina, Eugenia Bogomolova, and Galina Belostotskaya "Microbiologically active nanocomposite media", Proc. SPIE 5218, Complex Mediums IV: Beyond Linear Isotropic Dielectrics, (9 July 2003); https://doi.org/10.1117/12.506532

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