Currently, there is an increased interest in aluminosilicates of natural origin, both in connection with the use in detoxification of waters and soils, and as a matrix for the creation of biologically active composites. The morphological characteristics of glauconite grains from the Beloozersk deposit in the Saratov region and its composite have been studied by scanning electron microscopy. The main sorption characteristics of the enriched fraction of glauconite in relation to chlorhexidine digluconate were determined by spectrophotometry. On the basis of the presented sorption isotherm, the mechanism of immobilization of chlorhexidine ions on a glauconite matrix is analyzed in accordance with the provisions of Langmuir's theory. The basic constants of the Langmuir equation are determined. It was revealed that glauconite has a high sorption activity (up to 87%) in relation to chlorhexidine, which can be in demand as filter media in wastewater treatment, in agriculture, as well as in medicine and veterinary medicine, to create new types of enterosorbents with antibacterial properties.
Recently, there has been great interest in the potential use of metal nanoparticles in various fields: physics, medicine, microelectronics, biology, etc. Copper nanoparticles are not inferior in properties to nanoparticles of noble metals, however, they are much cheaper and more accessible. This work shows the preparation of an effective bactericidal composite with copper nanoparticles. Glauconite from the Beloozersk deposit in the Saratov region was used as a matrix for creating the composite. Glauconite can be a stabilizer for air-unstable copper nanoparticles. The glauconite structure has nanoscale porosity, which largely increases the effective sorption surface. The copper nanoparticles obtained by the chemical reduction were immobilized on a glauconite matrix. Sorption of nanoparticles was monitored by spectrophotometry. The bactericidal efficacy of the obtained nanocomposite was investigated in relation to clinical bacterial strains. These studies can be in demand in veterinary medicine, agriculture and medicine, after additional research.
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