Additive Manufacturing as a Method to Design and Optimize Bioinspired Structures

Velasco‐Hogan, Audrey; Xu, Jun; Meyers, Marc A.

doi:10.1002/adma.201800940

Cited by 199 publications

(97 citation statements)

References 113 publications

(172 reference statements)

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“…Additive manufacturing (AM) or more commonly known as 3D printing refers to the process of fabricating parts layer by layer, adding materials only where it is needed, leading to a considerable reduction in material utilization as well as generated waste. This process has been efficiently used to produce functional complex parts using a wide range of materials including composites, metals, polymers, and ceramics . Several AM techniques are well developed and used commercially while many others are under development.…”

Section: Manufacturability Of Tpms‐based Metamaterialsmentioning

confidence: 99%

Multifunctional Mechanical Metamaterials Based on Triply Periodic Minimal Surface Lattices

2019

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In nature, cellular materials exhibit enhanced multifunctionalities driven mainly by their sophisticated topologies and length scales. These natural systems have inspired the development and expansion of synthetic architected materials for revolutionary applications. Consequently, both the design and synthesis techniques gained considerable attention and have massively progressed over the last few decades. Such materials with topology-controlled properties are commonly known as "metamaterials." Architected materials with topologies based on triply periodic minimal surfaces (TPMS) which are of particular interest have attracted much attention recently due to their mathematically controlled fascinating topologies and their exhibited physical and mechanical properties. Herein, the design, synthesis, and use of TPMS in the field of metamaterials and metacomposites for several applications are focused upon. The design process to create TPMS-based 3D lattices is summarized and the different manufacturing processes used to fabricate these lattices are highlighted. Herein, the materialtopology-mechanical properties relationship of different TPMS-based lattices that are investigated in the literature is discussed. A further objective is to highlight the applications where TPMS-based lattices or composites can be efficiently used as well as the research areas to be explored. development of macro/micro/nanomechanics-based constitutive models and computational tools that can be used effectively in guiding the design of advanced materials. He is particularly active in using digital design and 3D printing for creating multifunctional architected materials and composites for various applications.

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Section: Manufacturability Of Tpms‐based Metamaterialsmentioning

confidence: 99%

Multifunctional Mechanical Metamaterials Based on Triply Periodic Minimal Surface Lattices

2019

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“…[78,[219][220][221][222] The bioinspired 4D printing technique, replicating the anisotropic swelling/shrinkage of plant systems by aligning cellulose fibrils in a hydrogel matrix, demonstrates a particular feasibility in forming programmable architectures that are dynamically reconfigurable or self-shapeable (Figure 11c). [19,[223][224][225][226][227] Similar dimensional effects can also be utilized to control the geometry of ceramics during the sintering process, thereby allowing for the manufacture of complexshaped, high-temperature responsive elements. [228,229] Successful bioinspiration relies essentially on the implementation of the central design principles underlying structural orientations.…”

Section: Discussionmentioning

confidence: 99%

Structural Orientation and Anisotropy in Biological Materials: Functional Designs and Mechanics

Liu

Zhang

Ritchie

2020

Adv Funct Materials

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Biological materials exhibit anisotropic characteristics because of the anisometric nature of their constituents and their preferred alignment within interfacial matrices. The regulation of structural orientations is the basis for material designs in nature and may offer inspiration for man‐made materials. Here, how structural orientation and anisotropy are designed into biological materials to achieve diverse functionalities is revisited. The orientation dependencies of differing mechanical properties are introduced based on a 2D composite model with wood and bone as examples; as such, anisotropic architectures and their roles in property optimization in biological systems are elucidated. Biological structural orientations are designed to achieve extrinsic toughening via complicated cracking paths, robust and releasable adhesion from anisotropic contact, programmable dynamic response by controlled expansion, enhanced contact damage resistance from varying orientations, and simultaneous optimization of multiple properties by adaptive structural reorientation. The underlying mechanics and material‐design principles that could be reproduced in man‐made systems are highlighted. Finally, the potential and challenges in developing a better understanding to implement such natural designs of structural orientation and anisotropy are discussed in light of current advances. The translation of these biological design principles can promote the creation of new synthetic materials with unprecedented properties and functionalities.

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“…With the requirements of both physiological functions and physical properties, biomaterials that are chosen as bio‐inks must have printable and biocompatible characteristics, as well as good mechanical strength . The eligible bio‐ink will be further printed to the desired 3D structure by the 3D printing technique, which are classified as extrusion‐based, inkjet printing, and light‐based methods .…”

Section: Methods To Prepare 3d Biomaterialsmentioning

confidence: 99%

The Construction and Application of Three‐Dimensional Biomaterials

Wang

Guo

et al. 2020

Adv. Biosys.

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Biomaterials have been widely explored and applied in many areas, especially in the field of tissue engineering. The interface of biomaterials and cells has been deeply investigated. However, it has been demonstrated that conventional 2D biomaterials fail to maintain the 3D structures and phenotypes of cells, which is the result of their limited ability to mimic the latter's complex extracellular matrix. To overcome this challenge, cell cultivation dependent on 3D biomaterials has emerged as an alternative strategy to make the recovery of 3D structures and functions of cells possible. Thus, with the thriving development of 3D cell culture in tissue engineering, a holistic review of the construction and application of 3D biomaterials is desired. Here, recent developments in 3D biomaterials for tissue engineering are reviewed. An overview of various approaches to construct 3D biomaterials, such as electro‐jetting/‐spinning, micro‐molding, microfluidics, and 3D bio‐printing, is first presented. Their typical applications in constructing cell sheets, vascular structures, cell spheroids, and macroscopic cellular constructs are described as well. Following these two sections, the current status and challenges are analyzed, as well as the future outlook of 3D biomaterials for tissue engineering.

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Additive Manufacturing as a Method to Design and Optimize Bioinspired Structures

Cited by 199 publications

References 113 publications

Multifunctional Mechanical Metamaterials Based on Triply Periodic Minimal Surface Lattices

Multifunctional Mechanical Metamaterials Based on Triply Periodic Minimal Surface Lattices

Structural Orientation and Anisotropy in Biological Materials: Functional Designs and Mechanics

The Construction and Application of Three‐Dimensional Biomaterials

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