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. 2021 Dec 16;1(3):20210033. doi: 10.1002/EXP.20210033

FIGURE 2.

FIGURE 2

Recent 4D printed materials and their operational performances. (A) Schematic illustration of a thermo‐sensitive materials based self‐folding and opening box. (B) Photographic representation of the folding process. Reproduced with permission.[ 91 ] Copyright 2013, American Institute of Physics. (C) chemically responsive smart polymer‐based self‐rolling container, actuated by acetone solution. Adapted with permission.[ 92 ] Copyright 2018, Royal Society of Chemistry. (D) Optical and fluorescent images of the disconnected theragripper compactly locked around and gripping a clump of cells. Scale bars, 1 mm. Adapted with permission.[ 55 ] Copyright 2014, John Wiley & Sons. (E) Demonstration of a magneto‐responsive restrictive shape recovery process. (F) 4D scaffolds application in intravascular stent. Reproduced with permission.[ 93 ] Copyright 2016, American Chemical Society