Fast micrometer resolution magneto-optical viscosity measurements with hard magnetic nanoplatelets
The paper reports on the application of hard magnetic nanoplatelets for direct local dynamic viscosity evaluation in liquids through their drag-hindered rotation after a magnetic field. Strontium hexaferrite, SrFe12O19 nanoplatelets with a diameter of 50 nm and a thickness of 5 nm were employed as n...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2025-01-01
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| Series: | Sensors International |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666351125000129 |
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| author | Artem Eliseev Vladimir Korolev Evgeny Anokhin Andrei Chumakov Alexander Vasiliev Lev Trusov Pavel Kazin Andrei Eliseev |
| author_facet | Artem Eliseev Vladimir Korolev Evgeny Anokhin Andrei Chumakov Alexander Vasiliev Lev Trusov Pavel Kazin Andrei Eliseev |
| author_sort | Artem Eliseev |
| collection | DOAJ |
| description | The paper reports on the application of hard magnetic nanoplatelets for direct local dynamic viscosity evaluation in liquids through their drag-hindered rotation after a magnetic field. Strontium hexaferrite, SrFe12O19 nanoplatelets with a diameter of 50 nm and a thickness of 5 nm were employed as nanoscale probes. The dynamics of nanoplatelets is investigated with AC magnetometry, small-angle X-ray scattering, and optical absorption/reflectance spectroscopy. Those reveal well-defined relation of drag force and phase lag tangent for platelets rotation under AC magnetization with the viscosity of the medium. The analytical quantitative description for magneto-optical response is provided and utilized successfully for independent viscosity evaluation of various liquids within the viscosity range of 0.5–1000 mPa∙s. The nanoscale size of the probes also enabled viscosity visualization with micrometer resolution in microchannels. |
| format | Article |
| id | doaj-art-d7854047512b4ea985ae976d2b4b0c73 |
| institution | DOAJ |
| issn | 2666-3511 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Sensors International |
| spelling | doaj-art-d7854047512b4ea985ae976d2b4b0c732025-08-20T03:14:02ZengKeAi Communications Co., Ltd.Sensors International2666-35112025-01-01610033710.1016/j.sintl.2025.100337Fast micrometer resolution magneto-optical viscosity measurements with hard magnetic nanoplateletsArtem Eliseev0Vladimir Korolev1Evgeny Anokhin2Andrei Chumakov3Alexander Vasiliev4Lev Trusov5Pavel Kazin6Andrei Eliseev7Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1b3, Moscow, 119991, Russia; Corresponding author.Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1b3, Moscow, 119991, RussiaDepartment of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1b3, Moscow, 119991, Russia; The Advanced Educational Scientific Center (AESC), Lomonosov Moscow State University, Kremenchugskaya, 11, Moscow, 121352, RussiaEuropean Synchrotron Radiation Facility, Avenue des Martyrs, 71, Grenoble, 38043, FranceDepartment of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1b3, Moscow, 119991, RussiaFaculty of Materials Science, Shenzhen MSU-BIT University, Shenzhen, 518172, China; Corresponding author.Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1b3, Moscow, 119991, RussiaDepartment of Materials Science, Lomonosov Moscow State University, Leninskie Gory, 1b73, Moscow, 119991, Russia; Corresponding author.The paper reports on the application of hard magnetic nanoplatelets for direct local dynamic viscosity evaluation in liquids through their drag-hindered rotation after a magnetic field. Strontium hexaferrite, SrFe12O19 nanoplatelets with a diameter of 50 nm and a thickness of 5 nm were employed as nanoscale probes. The dynamics of nanoplatelets is investigated with AC magnetometry, small-angle X-ray scattering, and optical absorption/reflectance spectroscopy. Those reveal well-defined relation of drag force and phase lag tangent for platelets rotation under AC magnetization with the viscosity of the medium. The analytical quantitative description for magneto-optical response is provided and utilized successfully for independent viscosity evaluation of various liquids within the viscosity range of 0.5–1000 mPa∙s. The nanoscale size of the probes also enabled viscosity visualization with micrometer resolution in microchannels.http://www.sciencedirect.com/science/article/pii/S2666351125000129hexaferriteColloidal solutionMagneto-opticsFerrofluidSAXSMicrofluidics |
| spellingShingle | Artem Eliseev Vladimir Korolev Evgeny Anokhin Andrei Chumakov Alexander Vasiliev Lev Trusov Pavel Kazin Andrei Eliseev Fast micrometer resolution magneto-optical viscosity measurements with hard magnetic nanoplatelets Sensors International hexaferrite Colloidal solution Magneto-optics Ferrofluid SAXS Microfluidics |
| title | Fast micrometer resolution magneto-optical viscosity measurements with hard magnetic nanoplatelets |
| title_full | Fast micrometer resolution magneto-optical viscosity measurements with hard magnetic nanoplatelets |
| title_fullStr | Fast micrometer resolution magneto-optical viscosity measurements with hard magnetic nanoplatelets |
| title_full_unstemmed | Fast micrometer resolution magneto-optical viscosity measurements with hard magnetic nanoplatelets |
| title_short | Fast micrometer resolution magneto-optical viscosity measurements with hard magnetic nanoplatelets |
| title_sort | fast micrometer resolution magneto optical viscosity measurements with hard magnetic nanoplatelets |
| topic | hexaferrite Colloidal solution Magneto-optics Ferrofluid SAXS Microfluidics |
| url | http://www.sciencedirect.com/science/article/pii/S2666351125000129 |
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