The hierarchical structure and mechanical performance of a natural nanocomposite material: The turtle shell

Chen, Mei‐Ling; Hu, Narisu; Zhou, Chang; Lin, Xiankun; Xie, Hui; He, Qiang

doi:10.1016/j.colsurfa.2017.01.063

Cited by 20 publications

(10 citation statements)

References 41 publications

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“…It exhibits intriguing enlightenment of nanocomposite platelet structures give robust and multifunctional mechanical properties. [ 35 ] The powder form of turtle shell was purchased from the E‐Market. The preliminary analysis was done, where the morphology structure was characterized using FESEM as shown in Figure 1(A) followed by EDAX result reveals the presence of chemical compositions shown in Figure 1(B), and Figure 1(C) shows the particle size was examined by Horiba Laser Scattering LA‐960, average distribution size of diameter 201 μm.…”

Section: Methodsmentioning

confidence: 99%

Investigation on mechanical properties of basalt/epoxy fiber reinforced polymer composite with the influence of turtle shell powder

Kasinathan

Jeyapaul

2022

Polymer Composites

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The research article deals with the efficacy of turtle shell powder (TSP) as an attempt at a novel perspective vision, used as a filler material in the fabrication of basalt‐epoxy composites preparation for us as a first opportunity. The fiber reinforced polymer composite made of basalt‐epoxy matrix was fabricated by filling TSP powder with different weight percentage levels of 1%, 3%, and 5% by hand lay‐up process continued by a compression molding technique. In addition, the single laminate basalt fiber ply orientations were configured by symmetric‐quasi‐isotropic. Density, tensile, flexural, impact, and hardness tests were performed to analyze the composite strength and modulus. The morphological traits and TSP elemental composition were analyzed by scanning electron microscope and EDAX, respectively. Results elucidate that the incorporated TSP particle in basalt‐epoxy composite enhanced the mechanical properties. Overall compared with the B0 composite, the B3 composite exhibits the optimal result, the tensile strength, tensile modulus, flexural strength, flexural modulus, and impact strength increased by 98.4%, 68.9%, 70.73%, 53.12%, and 76.85% performance explicates, respectively, except hardness, which shows 43.5% higher in 5 wt% composite. The interfacial bonding of basalt‐epoxy composites has been improved by the TSP particle curtailed the microvoids. The basalt‐epoxy characteristics were adversely affected by TSP aggregation that occurred at 5 wt% laminate. The laminated composites are heavily bolstered by the performance of TSP particles and with the addition of ply orientation increased the strong interfacial bonding of TSP‐epoxy‐basalt interactions.

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Section: Methodsmentioning

confidence: 99%

Investigation on mechanical properties of basalt/epoxy fiber reinforced polymer composite with the influence of turtle shell powder

Kasinathan

Jeyapaul

2022

Polymer Composites

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“…Eggshell and pearls are common bioactive materials, but they only provide osteo-conductive function rather than osteo-inductive [55]. However, turtle shell, degelatinated deer antler and cuttlebone are traditional biomaterials [56][57][58][59]. Among the scaffold preparation methods, 3D printing is a promising strategy for bioactivity involvement, as well as strong customizability according to the specific morphology of in situ defect areas [60].…”

Section: Cell Experimentsmentioning

confidence: 99%

3D Printing of PLLA/Biomineral Composite Bone Tissue Engineering Scaffolds

Gang

et al. 2022

Materials

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Tissue engineering is one of the most effective ways to treat bone defects in recent years. However, current highly active bone tissue engineering (BTE) scaffolds are mainly based on the addition of active biological components (such as growth factors) to promote bone repair. High cost, easy inactivation and complex regulatory requirements greatly limit their practical applications. In addition, conventional fabrication methods make it difficult to meet the needs of personalized customization for the macroscopic and internal structure of tissue engineering scaffolds. Herein, this paper proposes to select five natural biominerals (eggshell, pearl, turtle shell, degelatinated deer antler and cuttlebone) with widely available sources, low price and potential osteo-inductive activity as functional particles. Subsequently compounding them into L-polylactic acid (PLLA) biomaterial ink to further explore 3D printing processes of the composite scaffold, and reveal their potential as biomimetic 3D scaffolds for bone tissue repair. The research results of this project provide a new idea for the construction of a 3D scaffold with growth-factor-free biomimetic structure, personalized customization ability and osteo-inductive activity.

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“…Finite element results show that the bi-layered skin structure protects the inner bones from localized impact by reducing the stress concentrations via structural gradients and extensive near surface plasticity. Chen et al [15] have used Atomic Force Microscopy (AFM) experiments to characterize the elastic moduli and morphologies of the epidermal skin of red ear turtle shell. They reported that the excellent mechanical properties of the skin are due to ordered hierarchical composites formed by nanoplatelets comprising calcium phosphate and calcium sulfate polycrystals dispersed in the keratin.…”

Section: Introductionmentioning

confidence: 99%

Compressive deformation and failure of trabecular structures in a turtle shell

Ampaw

Owoseni

et al. 2019

Acta Biomaterialia

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Turtle shells comprising of cortical and trabecular bones exhibit intriguing mechanical properties. In this work, compression tests were performed using specimens made from the carapace of Kinixys erosa turtle. A combination of imaging techniques and mechanical testing were employed to examine the responses of hierarchical microstructures of turtle shell under compression. Finite element models produced from microCT-scanned microstructures and analytical foam structure models were then used to elucidate local responses of trabecular bones deformed under compression. The results reveal the contributions from micro-strut bending and stress concentrations to the fractural mechanisms of trabecular bone structures. The porous structures of turtle shells could be an excellent prototype for the bioinspired design of deformation-resistant structures.

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The hierarchical structure and mechanical performance of a natural nanocomposite material: The turtle shell

Cited by 20 publications

References 41 publications

Investigation on mechanical properties of basalt/epoxy fiber reinforced polymer composite with the influence of turtle shell powder

Investigation on mechanical properties of basalt/epoxy fiber reinforced polymer composite with the influence of turtle shell powder

3D Printing of PLLA/Biomineral Composite Bone Tissue Engineering Scaffolds

Compressive deformation and failure of trabecular structures in a turtle shell

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