About the influence of metal oxide nanoparticles on living organisms physiology

Zeinalov, O. A.; Ахмедович, Зейналов Орхан; Kombarova, S. P.; Петровна, Комбарова Светлана; Bagrov, Dmitry; Владимирович, Багров Дмитрий; Petrosyan, M. A.; Анатольевна, Петросян Мария; Tolibova, Gulrukhsor Kh.; Хайбуллоевна, Толибова Гулрухсор; Feofanov, Аlexey V.; Валерьевич, Феофанов Алексей; Шайтан, К. В.; Вольдемарович, Шайтан Константин

doi:10.17816/rcf14324-33

Cited by 4 publications

(2 citation statements)

References 16 publications

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“…In addition, the efficiency of titanium compounds during the process of organic compound removal, namely a decrease in the COD index, was, on average, 5-7% higher, which should have a positive effect on further biological treatment. In addition, it should be noted that when the titanium salts are used as the coagulants, the final treatment products will be titanium dioxide that has a much lower toxicity compared to the aluminum compounds [27].…”

Section: Resultsmentioning

confidence: 99%

Titanium-Containing Coagulants in Wastewater Treatment Processes in the Alcohol Industry

et al. 2022

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As part of the work, studies of the quality of wastewater from alcohol production were carried out; the main characteristics were determined, such as the charge of dispersed particles and the content of organic compounds and fats. A comparison is made of the effectiveness of titanium salts, traditional aluminum, and iron-containing coagulants. It has been established that titanium salts are much more effective than traditional reagents, but their high cost significantly limits the scope of their application. The possibility of increasing the efficiency of traditional coagulants by adding various titanium salts in an amount of up to 10% of the mass has been proved. It has been established that the addition of titanium compounds to aluminum or iron-containing coagulants makes it possible to increase the cleaning efficiency by an average of 10–20% while a significant reduction in the dose of reagents is possible, which will have a positive effect on the cost of the cleaning process. It was found that the addition of titanium salts to a coagulant based on aluminum sulfate allows not only an increase in the cleaning efficiency but also further intensifies the processes of sedimentation and filtration of coagulation sludge, which will significantly reduce the size of the treatment equipment and reduce capital costs.

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Section: Resultsmentioning

confidence: 99%

Titanium-Containing Coagulants in Wastewater Treatment Processes in the Alcohol Industry

et al. 2022

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“…Nano-sized copper oxide (nano-CuO) is a widespread metal-containing nanomaterial; it is used in various production spheres as a component in sensors (49 %), catalysts (20 %), surfactants (6 %), anti-microbial substances (4 %), specific dyes (21 %), and other products [3][4][5][6][7][8]. The research work [9] revealed that copper oxide nanoparticles penetrated a human body predominantly via inhalation or oral introduction (with drinking water).…”

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confidence: 99%

Metal-containing nanoparticles as risk factors causing pathomorphological changes in internal organs tissues in an experiment

Zaitseva¹,

Zemlyanova²,

Игнатова³

et al. 2021

Health Risk Analysis

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Given wide spread of nanomaterials, it seems vital to estimate and predict changes in internal organs tissues under exposure to metal-containing nanoparticles that are risk factors causing negative effects occurring in critical organs and systems. It requires revealing objective procedures that can be used to quantitatively assess risks of pathologic changes in tissues that at present have only qualitative properties. Our research goal was to quantitatively assess risks of lung diseases occurrence in rats exposed to metal-containing nanoparticles (exemplified by nano-sized CuO) using image analyzing procedures. We examined toxic effects produced by nano-disperse CuO (45.86 nm) under inhalation (a single and 14-day multiple) exposure and oral exposure (for 20 days); the experiment was performed on male Wistar rats (60 animals). Exposed animals were divided into 5 groups, 12 animals in each (group 1, a single inhalation exposure; group 2, multiple inhalation exposure; group 3, oral exposure; groups 4 and 5 were exposed to bi-distilled water in a similar way, via inhalation and orally). When analyzing tissue images, we estimated first-, second- and third-order elements. Statistical significance of differences was estimated with Mann-Whitney U-test. Quantitative risk assessment (R) was performed taking into account probability (p) and severity (q) of pathomorphological changes in tissues. We established that pathomorphological disorders might occur in lung tissue taking into account identification of all elements in all images for all experimental groups; the probability varied from 0.16 to 1.2. The total risk of lung diseases amounted to 1.0⋅10-3 (average risk) under single inhalation exposure to a concentration equal to 0.001СL50; multiple inhalation exposure, 8.1⋅10-3 (high risk, oral exposure to a dose equal to 0.1LD50, 2.5⋅10- 2(high risk). Therefore, image analysis allows quantitatively assessing risks of diseases in critical organs and systems caused by exposure to metal-containing nanoparticles.

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Study of Hematological Parameters and Morphometric Indices of Erythrocytes in Rats Exposed to Calcium Oxide Nanoparticles

et al. 2021

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About the influence of metal oxide nanoparticles on living organisms physiology

Cited by 4 publications

References 16 publications

Titanium-Containing Coagulants in Wastewater Treatment Processes in the Alcohol Industry

Titanium-Containing Coagulants in Wastewater Treatment Processes in the Alcohol Industry

Metal-containing nanoparticles as risk factors causing pathomorphological changes in internal organs tissues in an experiment

Study of Hematological Parameters and Morphometric Indices of Erythrocytes in Rats Exposed to Calcium Oxide Nanoparticles

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