Nanotechnologies in Russia最新文献_第10页

Optimization of the Pre-sowing Treatment of Rice Seeds Using Nanotechnology

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Nanotechnologies in Russia Pub Date : 2025-02-25 DOI: 10.1134/S2635167624602031

A. V. Braslavsky, I. I. Krokhmal, O. A. Bogoslovskaya, I. P. Olkhovskaya, N. N. Glushchenko

{"title":"Optimization of the Pre-sowing Treatment of Rice Seeds Using Nanotechnology","authors":"A. V. Braslavsky, I. I. Krokhmal, O. A. Bogoslovskaya, I. P. Olkhovskaya, N. N. Glushchenko","doi":"10.1134/S2635167624602031","DOIUrl":"10.1134/S2635167624602031","url":null,"abstract":"To meet the growing demand for food it is necessary to develop new approaches to pre-sowing seed treatment, including with modern nanotechnology. The paper presents data on the effect of the pre-sowing treatment of rice seeds with nanoparticles of individual trace elements and their compositions. It is found that the pre-sowing treatment of rice seeds with 10–7% of Fe NPs and compositions (B 10–5%, Mo 10–7%, Mn 10–6%, Fe 10–7% NP mixtures) increased the seed germination energy and seed germination by 9.4 and 11.8%, respectively, compared with the control. Fe 10–7% NPs contribute to a three-fold increase in seedling root length and a 110.9% increase in the seed/seedling viability index as compared to the control. The quantitative anatomical parameters of the leaves of rice seedlings show an increase in the area of water-storage tissue by 72.2%, chlorophyll-containing tissue by 22.9%, area of vascular bundles by 66.5%, leaf thickness by 21.9% for the case of the pre-sowing treatment of seeds with nanopreparations with a micronutrient-NP composition compared to the control.","PeriodicalId":716,"journal":{"name":"Nanotechnologies in Russia","volume":"19 5","pages":"753 - 760"},"PeriodicalIF":0.8,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Studying the Physical and Mechanical Properties of Siberian Larch Wood from the Nanolevel to Macrolevel Using Nanoindentation and Scratch-Test Methods with the Possible Use of Data for Dendrochronology 利用纳米压痕法和划痕试验法研究西伯利亚落叶松木材从纳米级到宏观级的物理和机械特性，并将数据用于树木年代学的可能性

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Nanotechnologies in Russia Pub Date : 2025-02-25 DOI: 10.1134/S2635167624601980

A. I. Tyurin, A. A. Samodurov, V. A. Tyurin, D. Yu. Golovin, M. A. Yunak, V. A. Shamaev, A. V. Russu

{"title":"Studying the Physical and Mechanical Properties of Siberian Larch Wood from the Nanolevel to Macrolevel Using Nanoindentation and Scratch-Test Methods with the Possible Use of Data for Dendrochronology","authors":"A. I. Tyurin, A. A. Samodurov, V. A. Tyurin, D. Yu. Golovin, M. A. Yunak, V. A. Shamaev, A. V. Russu","doi":"10.1134/S2635167624601980","DOIUrl":"10.1134/S2635167624601980","url":null,"abstract":"The study of larch wood is of interest in both engineering and nonengineering fields of science. This is due to the wide area of its growth and dominant position in terms of reserves in the Russian Federation. However, there are technological difficulties associated with its use as a building material due to the peculiarities of its structure and properties. Approaches to studying the physical and mechanical characteristics of wood from the nanolevel to macrolevel are demonstrated. They are focused on identifying the features of the microstructure and their relationship with the physical and mechanical characteristics at various structural levels. Using the dynamic nanoindentation and scratch-test methods, the values of the hardness and Young’s modulus are obtained from the cell wall level to the ring structure of larch wood. At the levels above individual cell wall both characteristics are found to be several times higher in late wood that in early one within annual growth ring. It is shown that the accuracy of determining the width of annual rings from the obtained profile of mechanical properties is no worse than the standard optical method. This makes it possible to use the proposed approach to solve problems of dendrochronology and its related disciplines.","PeriodicalId":716,"journal":{"name":"Nanotechnologies in Russia","volume":"19 5","pages":"708 - 718"},"PeriodicalIF":0.8,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Antibacterial Effect of Nanocomposites Based on Nanoparticles of Chalcogens and Metals in Natural Polymer Matrices in Relation to the Phytopathogen Clavibacter sepedonicus

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Nanotechnologies in Russia Pub Date : 2025-02-25 DOI: 10.1134/S2635167624601864

A. I. Perfileva, N. S. Zabanova

{"title":"Antibacterial Effect of Nanocomposites Based on Nanoparticles of Chalcogens and Metals in Natural Polymer Matrices in Relation to the Phytopathogen Clavibacter sepedonicus","authors":"A. I. Perfileva, N. S. Zabanova","doi":"10.1134/S2635167624601864","DOIUrl":"10.1134/S2635167624601864","url":null,"abstract":"A summary of data on the antibacterial effect of nanocomposites (NCs) against the phytopathogenic bacterium Clavibacter sepedonicus (Cms) is presented. The NCs are obtained by chemical synthesis by immersing nanoparticles (NPs) in a natural polymer matrix. Both chalcogens: selenium and sulfur, and metal NPs: silver and manganese are used as NPs in the NCs. The natural polymer matrix for the NCs is polysaccharides: arabinogalactan (AG), starch, carrageenan, and polymers of a different nature, humic substances: therapeutic mud, coal, and shale obtained from various sources in Mongolia. In our studies, Se/AG NC has the most pronounced antibacterial activity against Cms. This NC has a pronounced bactericidal effect, reduces the growth of the bacterial suspension by increasing the number of dead cells in it, and has an antibiofilm effect. Studies using microscopy methods show that Se NPs attach to the surface of Cms causing cell deformation and its further destruction. The causes of such events could be changes in the fatty-acid composition of the bacterial cell under the influence of the NC, as well as deterioration in the functioning of dehydrogenases. NCs based on S NPs and Ag NPs do not have all the desired properties; they either reduce biofilm formation or have antimicrobial activity. The manganese-containing NCs have a pronounced biological effect against Cms only at increased concentrations. Thus, the data presented in this work allow us to consider NCs, especially Se/AG NCs, as an effective alternative to pesticides for regulating the number of phytopathogenic bacteria.","PeriodicalId":716,"journal":{"name":"Nanotechnologies in Russia","volume":"19 5","pages":"740 - 752"},"PeriodicalIF":0.8,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Synthesis and Chemiluminescence Analysis of the Radical-Binding Capacity of Arabinogalactan-Stabilized Sulfur Nanoparticles

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Nanotechnologies in Russia Pub Date : 2025-02-25 DOI: 10.1134/S2635167624601906

M. V. Zvereva, E. A. Karpova, A. V. Zhmurova, T. V. Khiteva, A. N. Sapozhnikov

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Palynological Analysis in the Studies of Manuscripts Using the Sophia Prologue Manuscript As an Example

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Nanotechnologies in Russia Pub Date : 2025-02-25 DOI: 10.1134/S2635167624601529

E. S. Nosevich

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Industrial Multi-walled Carbon Nanotubes Undergo Biodegradation in the Mouse Gastrointestinal Tract

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Nanotechnologies in Russia Pub Date : 2025-02-25 DOI: 10.1134/S2635167624601943

A. G. Masyutin, K. A. Sychevskaya, I. V. Bocharova, M. V. Erokhina

{"title":"Industrial Multi-walled Carbon Nanotubes Undergo Biodegradation in the Mouse Gastrointestinal Tract","authors":"A. G. Masyutin, K. A. Sychevskaya, I. V. Bocharova, M. V. Erokhina","doi":"10.1134/S2635167624601943","DOIUrl":"10.1134/S2635167624601943","url":null,"abstract":"The growing production and use of multi-walled carbon nanotubes (MWCNTs) increases the risk of their entry into food chains; therefore, it is necessary to assess the possibility of MWCNT removal and destruction in the gastrointestinal tract (GIT) of animals. The purpose of this study is to identify variants of destruction of industrial MWCNTs after passing through the mouse gastrointestinal tract using Raman spectroscopy and standard and analytical electron microscopy. Changes in the density of defects, wall perforations, and disintegration into small fragments have been recorded in MWCNTs isolated from feces. These changes are more clearly defined than the degradation of MWCNTs under the influence of gastric juice or hydrochloric acid alone. The nanotube biodegradation products retain their crystalline structure, which makes it possible to identify them by electron diffraction. No nanomaterial was detected in the cells or in the intercellular space of the gastric and colon mucosa. Therefore, it is shown that the gastrointestinal epithelium is an effective barrier to MWCNTs and the biodegradation of MWCNTs begins in the stomach and continues in the intestines, leading to their destruction.","PeriodicalId":716,"journal":{"name":"Nanotechnologies in Russia","volume":"19 5","pages":"843 - 851"},"PeriodicalIF":0.8,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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A Study of the Influence of Packaging Material on the Development of a Pattern in Semi-hard Cheeses Produced Using Propionic Acid Bacteria

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Nanotechnologies in Russia Pub Date : 2025-02-25 DOI: 10.1134/S2635167624602171

G. N. Rogov, T. S. Smirnova, S. I. Kartashov, D. A. Kovalishina, M. V. Kalmykova, Z. B. Namsaraev

{"title":"A Study of the Influence of Packaging Material on the Development of a Pattern in Semi-hard Cheeses Produced Using Propionic Acid Bacteria","authors":"G. N. Rogov, T. S. Smirnova, S. I. Kartashov, D. A. Kovalishina, M. V. Kalmykova, Z. B. Namsaraev","doi":"10.1134/S2635167624602171","DOIUrl":"10.1134/S2635167624602171","url":null,"abstract":"Propionic acid bacteria play an important role in the formation of a pattern on cheese produced using them. In recent years, cheese producers have actively used the rindless technology for its ripening, which has made it difficult to obtain a pre-defined cheese pattern. The influence of the type of packaging material, the ripening temperature in the main chamber, and the salting technology on the process of pattern formation in semi-hard cheese with the involvement of propionic acid bacteria has been studied. The pattern in cheese was analyzed using the non-destructive method of magnetic resonance imaging. Our studies have shown that, the pattern formation during the production of semi-hard cheeses using propionic acid bacteria weighing 5–7 kg and a mass moisture fraction of 44–45% depends on the gas permeability of the polymer material used for cheese ripening and on the temperature in the main ripening chamber. The lowest amount of gas was formed when using a polymer material with a carbon dioxide permeability of 50 cm3/(m2 day). The best result was observed when cheese was ripened in packages with CO2 permeability above 1750 cm3/(m2 day) at a temperature of 24°C in the main ripening chamber. The lowering of the temperature in the main chamber to 18°C reduces the volume of formed gas by 5 times. It has also been established that the decrease in the permeability of the polymer material for carbon dioxide from 1750 to 750 cm3/(m2 day) has little effect on the development of a pattern in cheese. Increasing the salt concentration gradient in the surface layer of cheese reduces the volume of eyes formed in the subrind layer, thereby reducing the potential for defects in the finished product.","PeriodicalId":716,"journal":{"name":"Nanotechnologies in Russia","volume":"19 5","pages":"815 - 823"},"PeriodicalIF":0.8,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S2635167624602171.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Comparative Analysis of the Lytic Profiles of Bacteriophages of Industrially Significant Strains of Lactic Acid Bacteria

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Nanotechnologies in Russia Pub Date : 2025-02-25 DOI: 10.1134/S263516762460216X

N. P. Sorokina, E. V. Kuraeva, I. V. Kucherenko, Z. B. Namsaraev

{"title":"Comparative Analysis of the Lytic Profiles of Bacteriophages of Industrially Significant Strains of Lactic Acid Bacteria","authors":"N. P. Sorokina, E. V. Kuraeva, I. V. Kucherenko, Z. B. Namsaraev","doi":"10.1134/S263516762460216X","DOIUrl":"10.1134/S263516762460216X","url":null,"abstract":"Bacterial starters for fermented dairy products are specially selected consortia of lactic acid bacteria. Lactococcus bacteriophages are widespread in dairies and are the main cause of the inhibition of lactic acid fermentation. To select lactococcal cultures for cheese starters, a group of 25 bacteriophages isolated from various enterprises in the European part of Russia in the period from 1985 to 2016 was formed and their lytic spectrum was analyzed using phage-sensitive lactococcal strains. Based on the study, it can be concluded that there is a wide diversity of lytic profiles of bacteriophages at dairy enterprises in the European part of Russia. Despite the wide geographical coverage and wide time period of bacteriophage isolation, no regularities in the spectra of the bacteriophage lytic activity are revealed when using the lactococcal test panel. The results of the work demonstrate the need for the preliminary testing of starter cultures on a wide panel of bacteriophages to identify cultures of lactic acid bacteria with the maximum level of resistance to infection by bacteriophages.","PeriodicalId":716,"journal":{"name":"Nanotechnologies in Russia","volume":"19 5","pages":"824 - 829"},"PeriodicalIF":0.8,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Biochar Derived from Sewage Sludge as a Soil Amendment: The Impact of Pyrolysis Temperature on Product Characteristics Along with Heavy Metal Environmental Risk 从污水污泥中提取生物炭作为土壤改良剂：热解温度对产品特性及重金属环境风险的影响

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Nanotechnologies in Russia Pub Date : 2024-10-29 DOI: 10.1134/S2635167624600779

T. M. Bauer, V. A. Polyakov, T. M. Minkina, M. V. Kirichkov, M. A. Gritsai, Z. B. Namsaraev, V. D. Rajput

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Towards the Implementation of High-Throughput Next-Generation Sequencing Technology in Clinical Oncology. Where Are We Now? 在临床肿瘤学中应用高通量新一代测序技术。我们现在在哪里？

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Nanotechnologies in Russia Pub Date : 2024-10-29 DOI: 10.1134/S2635167624601062

M. S. Gusakova, M. V. Patrushev

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