Influence of design parameters on the flexural properties of a bio-inspired suture structure

Wickramasinghe, Sachini; Al‐Ketan, Oraib; Peng, Chenxi; Tee, Yun Lu; Kajtaz, Mladenko; Tran, Phuong

doi:10.1080/17452759.2023.2204845

Cited by 3 publications

(3 citation statements)

References 46 publications

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“…Inspired by the optimized design strategies found in nature and aided by modern nano- and micro- characterization and fabrication technologies, numerous synthetic materials with multiscale structures and functions have been successfully developed [ 114 , 115 , 116 , 117 , 118 , 119 , 120 , 121 , 122 , 123 , 124 , 125 , 126 , 127 , 128 , 129 , 130 , 131 , 132 , 133 , 134 , 135 , 136 , 137 , 138 , 139 ], as shown in Table 1 . In this section, we provide examples that mimic the above-mentioned structures and functions.…”

Section: Bioinspired Applications and Challengesmentioning

confidence: 99%

“…These structures possess exceptional mechanical properties, enabling them to withstand a wide range of stresses in their natural environments. Drawing inspiration from these stiff–soft composite structures, several methods have been employed to fabricate strong and tough materials [ 114 , 115 , 116 , 117 , 118 , 119 , 120 , 121 ]. Freeze casting provides a route to process materials across multiple length scales.…”

Section: Bioinspired Applications and Challengesmentioning

confidence: 99%

“…It involves the directional freezing of suspensions containing hard phases, resulting in the formation of a hard scaffold that is subsequently filled with a soft phase, such as PMMA/alumina, PMMA/SiC, and so on [ 114 , 115 , 116 ]. Another powerful technique for emulating biological structures is additive manufacturing, commonly known as 3D printing [ 117 , 118 , 119 , 120 ]. Zhang et al have successfully produced a porous Al 2 O 3 scaffold using 3D printing and subsequently immersed it entirely in liquid polyurea to create a hard–soft material inspired by the mantis shrimp [ 117 ].…”

Section: Bioinspired Applications and Challengesmentioning

confidence: 99%

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Multifunctionality in Nature: Structure–Function Relationships in Biological Materials

2023

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Modern material design aims to achieve multifunctionality through integrating structures in a diverse range, resulting in simple materials with embedded functions. Biological materials and organisms are typical examples of this concept, where complex functionalities are achieved through a limited material base. This review highlights the multiscale structural and functional integration of representative natural organisms and materials, as well as biomimetic examples. The impact, wear, and crush resistance properties exhibited by mantis shrimp and ironclad beetle during predation or resistance offer valuable inspiration for the development of structural materials in the aerospace field. Investigating cyanobacteria that thrive in extreme environments can contribute to developing living materials that can serve in places like Mars. The exploration of shape memory and the self-repairing properties of spider silk and mussels, as well as the investigation of sensing–actuating and sensing–camouflage mechanisms in Banksias, chameleons, and moths, holds significant potential for the optimization of soft robot designs. Furthermore, a deeper understanding of mussel and gecko adhesion mechanisms can have a profound impact on medical fields, including tissue engineering and drug delivery. In conclusion, the integration of structure and function is crucial for driving innovations and breakthroughs in modern engineering materials and their applications. The gaps between current biomimetic designs and natural organisms are also discussed.

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Section: Bioinspired Applications and Challengesmentioning

confidence: 99%

Section: Bioinspired Applications and Challengesmentioning

confidence: 99%

Section: Bioinspired Applications and Challengesmentioning

confidence: 99%

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Multifunctionality in Nature: Structure–Function Relationships in Biological Materials

2023

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The Toughness of Interlocking Metasurfaces

Young,

Smith,

Grutzik

et al. 2024

Adv Eng Mater

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Interlocking metasurfaces (ILMs) are arrays of autogenous latching unit cells patterned across a surface. These create structural joints similar to bio‐inspired suture joints but patterned over a 2D surface rather than a 1D seam. This enables ILMs to be an alternative to conventional joining technologies such as bolts, welds, and adhesives. However, compared to conventional joining methods, relatively little is known of the engineering considerations for designing structural ILMs. In this study, the interfacial toughness of an archetypal ILM was examined for the first time. Under the conditions studied here, the ILM was substantially tougher than the material from which it was made; in this case exhibiting up to a 50% increase in interfacial crack initiation energy over the solid base material, a photocured 3D printed polymer. Through experimental tests using in‐situ digital image correlation along with complementary computational analyses, the mechanism of toughening in the ILM structure and the origins of toughness anisotropy were revealed. The increase in toughness is associated with cross‐cell interactions, i.e. load‐sharing across unit cells, which gives rise to a finite process zone length with different effective material properties. In this way, ILM toughening is analogous to crack blunting in ductile materials or fiber bridging in composites; yet here, the ILM was composed of a single‐phase base material and so the architected toughening is geometric in nature and hence amenable to future topological optimization.This article is protected by copyright. All rights reserved.

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Development of 3D printed tissue-mimicking materials: Combining fiber reinforcement and fluid content for improved surgical rehearsal

Aryeetey,

Jaksa,

Bittner-Frank

et al. 2024

Materialia

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Influence of design parameters on the flexural properties of a bio-inspired suture structure

Cited by 3 publications

References 46 publications

Multifunctionality in Nature: Structure–Function Relationships in Biological Materials

Multifunctionality in Nature: Structure–Function Relationships in Biological Materials

The Toughness of Interlocking Metasurfaces

Development of 3D printed tissue-mimicking materials: Combining fiber reinforcement and fluid content for improved surgical rehearsal

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