Effect of Metal-Oxide Nanoparticles on the Viscosity of Lamellar Liquid Crystals in the Lecithin–Oil Mixture–Water System

IF 0.8 Q3 Engineering

Nanotechnologies in Russia Pub Date : 2024-08-06 DOI:10.1134/S2635167624600299

N. M. Murashova, T. S. Tokareva, E. A. Ovchinnikova, S. V. Shulaev

{"title":"Effect of Metal-Oxide Nanoparticles on the Viscosity of Lamellar Liquid Crystals in the Lecithin–Oil Mixture–Water System","authors":"N. M. Murashova, T. S. Tokareva, E. A. Ovchinnikova, S. V. Shulaev","doi":"10.1134/S2635167624600299","DOIUrl":null,"url":null,"abstract":"It is shown that the viscosity of lamellar liquid crystals in the system lecithin–avocado oil–tea tree oil–water in the shear rate range of 0.01–1.0 s–1 increases with increasing CuO concentration from 0.01 to 0.3 wt % when introduced as spherical nanoparticles with a diameter of 92 ± 3 nm and submicron cylindrical particles with a diameter of 151 ± 9 nm and a length of 268 ± 36 nm, while the shape of the flow curves does not change. The range of changes in the viscosity (compared to the sample without particles) at temperatures of 25 and 37°С is from 1.1 to 2.1 times for spherical nanoparticles and from 1.6 to 2.9 times for submicron cylindrical nanoparticles. When introducing spherical Al2O3 nanoparticles with an average diameter of 84 ± 32 nm and needle-shaped ZnO nanoparticles (diameter 37 ± 6 nm and length 302 ± 77 nm), similar results are obtained: the viscosity increased by 1.1–2.0 times compared to the sample without nanoparticles. In contrast to nanoparticles, the introduction of CuO microparticles (diameter 31.2 ± 3.6 μm) has virtually no effect on the viscosity of the composition.","PeriodicalId":716,"journal":{"name":"Nanotechnologies in Russia","volume":"19 1","pages":"156 - 164"},"PeriodicalIF":0.8000,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nanotechnologies in Russia","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S2635167624600299","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Engineering","Score":null,"Total":0}

引用次数: 0

Abstract

It is shown that the viscosity of lamellar liquid crystals in the system lecithin–avocado oil–tea tree oil–water in the shear rate range of 0.01–1.0 s^–1 increases with increasing CuO concentration from 0.01 to 0.3 wt % when introduced as spherical nanoparticles with a diameter of 92 ± 3 nm and submicron cylindrical particles with a diameter of 151 ± 9 nm and a length of 268 ± 36 nm, while the shape of the flow curves does not change. The range of changes in the viscosity (compared to the sample without particles) at temperatures of 25 and 37°С is from 1.1 to 2.1 times for spherical nanoparticles and from 1.6 to 2.9 times for submicron cylindrical nanoparticles. When introducing spherical Al₂O₃ nanoparticles with an average diameter of 84 ± 32 nm and needle-shaped ZnO nanoparticles (diameter 37 ± 6 nm and length 302 ± 77 nm), similar results are obtained: the viscosity increased by 1.1–2.0 times compared to the sample without nanoparticles. In contrast to nanoparticles, the introduction of CuO microparticles (diameter 31.2 ± 3.6 μm) has virtually no effect on the viscosity of the composition.

Abstract Image

查看原文本刊更多论文

氧化金属纳米颗粒对卵磷脂-油混合物-水体系中片状液晶粘度的影响

摘要研究表明，在剪切速率为 0.01-1.0 s-1 的卵磷脂-鳄梨油-茶树油-水体系中，当引入直径为 92 ± 3 nm 的球形纳米颗粒和直径为 151 ± 9 nm、长度为 268 ± 36 nm 的亚微米圆柱形颗粒时，片状液晶的粘度会随着 CuO 浓度从 0.01 wt % 到 0.3 wt % 的增加而增加，而流动曲线的形状不会改变。在温度为 25 和 37°С 时，球形纳米颗粒的粘度变化范围（与不含颗粒的样品相比）为 1.1 至 2.1 倍，亚微米圆柱形纳米颗粒的粘度变化范围（与不含颗粒的样品相比）为 1.6 至 2.9 倍。当引入平均直径为 84 ± 32 nm 的球形 Al2O3 纳米粒子和针状 ZnO 纳米粒子（直径为 37 ± 6 nm，长度为 302 ± 77 nm）时，也得到了类似的结果：与不含纳米粒子的样品相比，粘度增加了 1.1-2.0 倍。与纳米颗粒相反，引入氧化铜微粒（直径 31.2 ± 3.6 μm）对组合物的粘度几乎没有影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Nanotechnologies in Russia NANOSCIENCE & NANOTECHNOLOGY-

CiteScore

1.20

自引率

0.00%

发文量

期刊介绍： Nanobiotechnology Reports publishes interdisciplinary research articles on fundamental aspects of the structure and properties of nanoscale objects and nanomaterials, polymeric and bioorganic molecules, and supramolecular and biohybrid complexes, as well as articles that discuss technologies for their preparation and processing, and practical implementation of products, devices, and nature-like systems based on them. The journal publishes original articles and reviews that meet the highest scientific quality standards in the following areas of science and technology studies: self-organizing structures and nanoassemblies; nanostructures, including nanotubes; functional and structural nanomaterials; polymeric, bioorganic, and hybrid nanomaterials; devices and products based on nanomaterials and nanotechnology; nanobiology and genetics, and omics technologies; nanobiomedicine and nanopharmaceutics; nanoelectronics and neuromorphic computing systems; neurocognitive systems and technologies; nanophotonics; natural science methods in a study of cultural heritage items; metrology, standardization, and monitoring in nanotechnology.