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. 2024 Jan 3;19(4):494–503. doi: 10.1038/s41565-023-01567-0

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© The Author(s) 2024, corrected publication 2024

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Extended Data Fig. 1 — (a) Schematic illustration of the media changing process with intermediate media containing acetone (ACE) and the sperm cell media (SP-TALP) to avoid damage to the structure when moved from ACE to aqueous solutions. (b) Optical images showing the microstructure quality relevant to the laser power and the use of the thickener during media change. Scale bars: 10 μm in the panel of single microstructures and 50 μm in the array images. (c) Optical images of four soft micromachines with different types of springs. Scale bars: 100 μm for the array in the upper panels and 10 μm for the single micromachine in the lower panels.