Characteristics of the Protein Coating and Functional Properties of Cadmium Sulfide Nanoparticles Obtained by Microbial Synthesis

• Published in: Nanobiotechnology Reports (Online) 2022-12, Vol.17 (6), p.828-839
• Main Authors: Voeikova, T. A., Zhuravliova, O. A., Bulushova, N. V., Kuligin, V. S., Malakhov, S. N., Debabov, V. G.
• Format: Article
• Language: English
• Subjects: Biocides; Biosynthesis; Cadmium sulfide; Catalytic activity; Chemistry and Materials Science; Composition; Decoloring; Fourier transforms; Industrial and Production Engineering; Infrared spectroscopy; Machines; Manufacturing; Materials Science; Microorganisms; Nanobiology and Genetics; Nanomaterials; Nanoparticles; Nanotechnology; Omics Technologies; Organic compounds; Photocatalysis; Processes; Proteins
• ISSN: 2635-1676; 1995-0780; 2635-1684; 1995-0799
• DOI: 10.1134/S2635167622060179

Data on the determining influence of Shewanella oneidensis MR-1 (gram−) and Bacillus subtilis 168 (gram+) bacterial strains used for the biosynthesis of CdS nanoparticles (NPs) on the quantitative and qualitative composition of the protein coating and functional characteristics of the nanomaterial such as the biocidal and photocatalytic activity are presented. The novelty of the study is quantitative assessment of the proteins adsorbed on the surface of CdS NPs/ Shewanella and CdS NPs/ Bacillus . It is shown that the protein content on the surface of CdS NPs/ Shewanella and CdS NPs/ Bacillus substantially differs and is 34 and 5% of the total weight of the nanoparticles, respectively. The fundamental difference in the qualitative composition of the “protein corona” of CdS NPs/ Shewanella and CdS NPs/ Bacillus is confirmed. The presence of nitrogen-containing organic compounds of protein nature on the surface of the nanoparticles is confirmed by Fourier-transform infrared (IR) spectroscopy. The possibility of using biogenic CdS NPs as biocidal agents of a new generation against a wide range of microorganisms as well as photonanocatalysts for the decoloration of synthetic dyes is proven. A difference in the level of functional activity of CdS NPs depending on the strain used for their biosynthesis is found and higher biocidal and photocatalytic activity of CdS NPs/ Bacillus in comparison with CdS NPs/ Shewanella is shown. The need for selecting bacterial strains to produce nanoparticles with high functionality is demonstrated.