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. 2024 Feb 29;15:1839. doi: 10.1038/s41467-024-46046-9

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© The Author(s) 2024

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 2 — a Magnetic hysteresis loops of the magnetic soft composites containing NdFeB microparticles and PDMS. Source data are provided as a Source Data file. b Deformation profiles of the magnetic leaf when the applied magnetic field strength increased from 0 mT to 40 mT. c Magnetic fields required to open the magnetic valve for magnetic frames with the magnetic powder content are set to 30%, 50%, and 70% (n = 3, data are presented as mean values +/− SD). d Measured bending angles with different magnetic powder content under the static magnetic field (n = 3, data are presented as mean values +/− SD). e Critical pressures required for the magnetic leaf detachment from the magnetic frame with varying magnetic powder mass fractions (n = 3, data are presented as mean values +/− SD). f Schematic diagram of the sealing test, where the capsules containing the drug were placed on a shaker and tested at the extreme case. g Sealing performance of capsules for magnetic frames with different magnetic powder content, which can be revealed by the percentage of leaked drugs (n = 3, data are presented as mean values +/− SD). Source data are provided as a Source Data file. The Fig. 2e–g were partly generated using Servier Medical Art, provided by Servier, licensed under a Creative Commons Attribution 3.0 unported license⁷¹.