Active Materials for Functional Origami

Advanced Materials, Год журнала: 2023, Номер 36(9)

Опубликована: Апрель 30, 2023

Abstract In recent decades, origami has been explored to aid in the design of engineering structures. These structures span multiple scales and have demonstrated be used toward various areas such as aerospace, metamaterial, biomedical, robotics, architectural applications. Conventionally, or deployable actuated by hands, motors, pneumatic actuators, which can result heavy bulky On other hand, active materials, reconfigure response external stimulus, eliminate need for mechanical loads actuation systems. Thus, years, materials incorporated with shown promise remote light weight, programmable origami. this review, shape memory polymers (SMPs) alloys (SMAs), hydrogels, liquid crystal elastomers (LCEs), magnetic soft (MSMs), covalent adaptable network (CAN) polymers, their mechanisms, well how they utilized where these are applicable is discussed. Additionally, state‐of‐the‐art fabrication methods construct highlighted. The existing structural modeling strategies origami, constitutive models describe largest challenges future directions research summarized.

Язык: Английский

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Mechanically-Guided 3D Assembly for Architected Flexible Electronics

Chemical Reviews, Год журнала: 2023, Номер 123(18), С. 11137 - 11189

Опубликована: Сен. 7, 2023

Architected flexible electronic devices with rationally designed 3D geometries have found essential applications in biology, medicine, therapeutics, sensing/imaging, energy, robotics, and daily healthcare. Mechanically-guided assembly methods, exploiting mechanics principles of materials structures to transform planar fabricated using mature semiconductor techniques into architected ones, are promising routes such devices. Here, we comprehensively review mechanically-guided methods for electronics. Mainstream classified discussed on the basis their fundamental deformation modes (i.e., rolling, folding, curving, buckling). Diverse interconnects device forms then summarized, which correspond two key components an device. Afterward, structure-induced functionalities highlighted provide guidelines function-driven structural designs electronics, followed by a collective summary resulting applications. Finally, conclusions outlooks given, covering achieve extreme deformations dimensions, inverse design encapsulation strategies as well perspectives future

Язык: Английский

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A hyperelastic hydrogel with an ultralarge reversible biaxial strain

Science, Год журнала: 2024, Номер 383(6690), С. 1455 - 1461

Опубликована: Март 28, 2024

Hyperelastic materials exhibit a nonlinear elastic response to large strains, whereas hydrogels typically possess low range due the nonuniform cross-linking and limited chain segments among cross-links. We developed hyperelastic hydrogel that possesses broader by introducing reversible pearl-necklace structure, in which beads are connected strings. The subnanometric can efficiently unfold refold under cyclic mechanical strains; thus, rapidly recover after being stretched an areal strain of more than 10,000%. Additionally, quickly heal from minor damages such as needle punctures cuts. These advancements make our ionic ideal for multifunctional pneumatic gripper materials; they simultaneously offer ultralarge gripping range, self-sensing capabilities, fast healing abilities.

Язык: Английский

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Multimaterial 3D and 4D Bioprinting of Heterogenous Constructs for Tissue Engineering

Advanced Materials, Год журнала: 2023, Номер 36(34)

Опубликована: Сен. 22, 2023

Additive manufacturing (AM), which is based on the principle of layer-by-layer shaping and stacking discrete materials, has shown significant benefits in fabrication complicated implants for tissue engineering (TE). However, many native tissues exhibit anisotropic heterogenous constructs with diverse components functions. Consequently, replication biomimetic using conventional AM processes a single material challenging. Multimaterial 3D 4D bioprinting (with time as fourth dimension) emerged promising solution constructing multifunctional that can mimic host microenvironment better than single-material alternatives. Notably, 4D-printed multimaterial architectures provide time-dependent programmable dynamic promote cell activity regeneration response to external stimuli. This paper first presents typical design strategies TE applications. Subsequently, latest are discussed, along their advantages challenges. In particular, potential smart highlighted. Furthermore, this review provides insights into how facilitate realization next-generation

Язык: Английский

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3D and 4D Bioprinting Technologies: A Game Changer for the Biomedical Sector?

Annals of Biomedical Engineering, Год журнала: 2023, Номер 51(8), С. 1683 - 1712

Опубликована: Июнь 1, 2023

Язык: Английский

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