Impact-resistant materials inspired by the mantis shrimp's dactyl club

Behera, Rohit Pratyush; Ferrand, Hortense Le

doi:10.1016/j.matt.2021.07.012

Cited by 65 publications

(47 citation statements)

References 117 publications

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“…In addition, microstructure design is often used to toughen such ceramic composites. The periodic orientation of microplatelets in the printed multi-layered CaP ( Figure 8F ) bears resemblance to the periodic structures in highly tough natural materials often employed in biomimetic materials for toughness enhancement, such as the Bouligand structure[ 46 ]. We indeed found that the graded orientation of the microplatelets was effective and driving the crack along curved path, following the orientation of the planes of the microplatelets (see for images of an unusual, curved crack path).…”

Section: Resultsmentioning

confidence: 98%

Fabrication of Microstructured Calcium Phosphate Ceramics Scaffolds by Material Extrusion-Based 3D Printing Approach

Dee¹,

Tan²,

Ferrand³

2022

IJB

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Natural materials such as bone and enamel have intricate microstructures with inorganic minerals oriented to perform multiple mechanical and biological functions. Current additive manufacturing methods for biominerals from the calcium phosphate (CaP) family enable fabrication of custom-shaped bioactive scaffolds with controlled pore structures for patient-specific bone repair. Yet, these scaffolds do not feature intricate microstructures similar to those found in natural materials. In this work, we used direct material extrusion to 3D print water-based inks containing CaP microplatelets, and obtained microstructured scaffolds with various designs. To be shear-thinning and printable, the ink incorporated a concentration of 21 – 24 vol% CaP microplatelets of high aspect ratio. Good shape retention, print fidelity and overhanging layers were achieved by simultaneous printing and drying. Combined with the 3D design, versatile CaP microstructured objects can be built, from porous scaffolds to bulk parts. Extruded filaments featured a core-shell microstructure with graded microplatelet orientations, which was not affected by the printing parameters and the print design. A simple model is proposed to predict the core-shell microstructure according to the ink rheology. Given the remaining open porosity after calcination, microstructured scaffolds could be infiltrated with an organic phase in future to yield CaP biocomposites for hard tissue engineering.

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Section: Resultsmentioning

confidence: 98%

Fabrication of Microstructured Calcium Phosphate Ceramics Scaffolds by Material Extrusion-Based 3D Printing Approach

Dee¹,

Tan²,

Ferrand³

2022

IJB

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“…The twisted plywood, or Bouligand, structure is the most prevalent microstructural motif in natural materials with high mechanical strength and toughness, including as bone and the mantis shrimp dactyl club 155 (see Figure 1). Similarly, the cuticle of lobsters 156 and other marine microorganisms 153 "Bouligand" structure itself via shear wave filtering and fracture twisting, deflection, and arrest.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Chiral Liquid Crystalline Properties of Cellulose Nanocrystals: Fundamentals and Applications

Moud

2022

ACS Omega

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By using an independent self-assembly process that is occasionally controlled by evaporation, cellulose nanocrystals (CNCs) may create films (pure or in conjunction with other materials) that have iridescent structural colors. The self-forming chiral nematic structures and environmental safety of a new class of photonic liquid crystals (LCs), referred to as CNCs and CNC-embedded materials, make them simple to make and treat. The structure of the matrix interacts with light to give structural coloring, as opposed to other dye pigments, which interact with light by adsorption and reflection. Understanding how CNC self-assembly constructs structures is vital in several fields, including physics, science, and engineering. To constructure this review, the colloidal characteristics of CNC particles and their behavior during the formation of liquid crystals and gelling were studied. Then, some of the recognized applications for these naturally occurring nanoparticles were summarized. Different factors were considered, including the CNC aspect ratio, surface chemistry, concentration, the amount of time needed to produce an anisotropic phase, and the addition of additional substances to the suspension medium. The effects of alignment and the drying process conditions on structural changes are also covered. The focus of this study however is on the optical properties of the films as well as the impact of the aforementioned factors on the final transparency, iridescent colors, and versus the overall response of these bioinspired photonic materials. Control of the examined factors was found to be necessary to produce reliable materials for optoelectronics, intelligent inks and papers, transparent flexible support for electronics, and decorative coatings and films.

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“…This effect is well demonstrated in natural materials, which have evolved complex microstructures with local alignment over the years, providing us with an inspirational gallery for structural design and fabrication. [26][27][28][29][30] By mimicking these natural microstructures, many advanced articial materials exhibiting attractive properties and functions have been realized (Fig. 1).…”

Section: Introductionmentioning

confidence: 99%

Controlled local orientation of 2D nanomaterials in 3D devices: methods and prospects for multifunctional designs and enhanced performance

Guan

Ferrand

2022

J. Mater. Chem. A

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Impact-resistant materials inspired by the mantis shrimp's dactyl club

Cited by 65 publications

References 117 publications

Fabrication of Microstructured Calcium Phosphate Ceramics Scaffolds by Material Extrusion-Based 3D Printing Approach

Fabrication of Microstructured Calcium Phosphate Ceramics Scaffolds by Material Extrusion-Based 3D Printing Approach

Chiral Liquid Crystalline Properties of Cellulose Nanocrystals: Fundamentals and Applications

Controlled local orientation of 2D nanomaterials in 3D devices: methods and prospects for multifunctional designs and enhanced performance

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