Selective laser melted Ti6Al4V split-P TPMS lattices for bone tissue engineering

Rezapourian, Mansoureh; Jasiuk, Iwona; Saarna, Mart; Hussainova, Irina

doi:10.1016/j.ijmecsci.2023.108353

Cited by 40 publications

(8 citation statements)

References 76 publications

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“…Rezapourian et al [92] designed TPMS-based Split-P scaffolds of porosities in a range from 75% to 90% and applied a multilinear isotropic elastoplastic model to predict the behaviour of Ti6Al4V scaffolds under compressive loading. Linear tetrahedral meshes (with an element size of 0.2 mm) of the scaffolds were placed between a fixed bottom plate and a movable top plate, subject to a velocity of 2 ms −1 , to simulate the compressive behaviour at different strains.…”

Section: Simulation Of Mechanical Behaviour Of Bte Scaffolds Fem For ...mentioning

confidence: 99%

“…Linear tetrahedral meshes (with an element size of 0.2 mm) of the scaffolds were placed between a fixed bottom plate and a movable top plate, subject to a velocity of 2 ms −1 , to simulate the compressive behaviour at different strains. The assessment of the simulation results disclosed that the Split-P scaffolds exhibited adequate stress transfer necessary for enhanced load-supporting capability in trabecular and cortical bone applications, displaying fracture characteristics capable of sustaining normal biomechanical loads [92].…”

Section: Simulation Of Mechanical Behaviour Of Bte Scaffolds Fem For ...mentioning

confidence: 99%

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Computational Modelling and Simulation of Scaffolds for Bone Tissue Engineering

N. Musthafa,

Walker,

Domagala

2024

Computation

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Three-dimensional porous scaffolds are substitutes for traditional bone grafts in bone tissue engineering (BTE) applications to restore and treat bone injuries and defects. The use of computational modelling is gaining momentum to predict the parameters involved in tissue healing and cell seeding procedures in perfusion bioreactors to reach the final goal of optimal bone tissue growth. Computational modelling based on finite element method (FEM) and computational fluid dynamics (CFD) are two standard methodologies utilised to investigate the equivalent mechanical properties of tissue scaffolds, as well as the flow characteristics inside the scaffolds, respectively. The success of a computational modelling simulation hinges on the selection of a relevant mathematical model with proper initial and boundary conditions. This review paper aims to provide insights to researchers regarding the selection of appropriate finite element (FE) models for different materials and CFD models for different flow regimes inside perfusion bioreactors. Thus, these FEM/CFD computational models may help to create efficient designs of scaffolds by predicting their structural properties and their haemodynamic responses prior to in vitro and in vivo tissue engineering (TE) applications.

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Section: Simulation Of Mechanical Behaviour Of Bte Scaffolds Fem For ...mentioning

confidence: 99%

Section: Simulation Of Mechanical Behaviour Of Bte Scaffolds Fem For ...mentioning

confidence: 99%

Computational Modelling and Simulation of Scaffolds for Bone Tissue Engineering

N. Musthafa,

Walker,

Domagala

2024

Computation

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“…Another approach involves incorporating multiple morphologies within a metamaterial structure (Figure 26), with each morphology designed to fulfill specific functions, such as permeability, elongated stress range, elastic modulus, compressive strength, and more [368,369]. For instance, Rezapourian et al [370] reported that triply periodic minimal surfaces (TPMSs) serve as bioinspired metamaterials due to their resemblance to biological structures like trabecular bone networks (Figure 26). It was shown that the highly interconnected porous structures of TPMS-based metamaterials can achieve improved strength-to-weight ratios, impact resistance, and structural integrity [371].…”

Section: Bioinspired Metamaterialsmentioning

confidence: 99%

Bioinspired and Multifunctional Tribological Materials for Sliding, Erosive, Machining, and Energy-Absorbing Conditions: A Review

Kumar,

Rezapourian,

Rahmani

et al. 2024

Biomimetics

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Friction, wear, and the consequent energy dissipation pose significant challenges in systems with moving components, spanning various domains, including nanoelectromechanical systems (NEMS/MEMS) and bio-MEMS (microrobots), hip prostheses (biomaterials), offshore wind and hydro turbines, space vehicles, solar mirrors for photovoltaics, triboelectric generators, etc. Nature-inspired bionic surfaces offer valuable examples of effective texturing strategies, encompassing various geometric and topological approaches tailored to mitigate frictional effects and related functionalities in various scenarios. By employing biomimetic surface modifications, for example, roughness tailoring, multifunctionality of the system can be generated to efficiently reduce friction and wear, enhance load-bearing capacity, improve self-adaptiveness in different environments, improve chemical interactions, facilitate biological interactions, etc. However, the full potential of bioinspired texturing remains untapped due to the limited mechanistic understanding of functional aspects in tribological/biotribological settings. The current review extends to surface engineering and provides a comprehensive and critical assessment of bioinspired texturing that exhibits sustainable synergy between tribology and biology. The successful evolving examples from nature for surface/tribological solutions that can efficiently solve complex tribological problems in both dry and lubricated contact situations are comprehensively discussed. The review encompasses four major wear conditions: sliding, solid-particle erosion, machining or cutting, and impact (energy absorbing). Furthermore, it explores how topographies and their design parameters can provide tailored responses (multifunctionality) under specified tribological conditions. Additionally, an interdisciplinary perspective on the future potential of bioinspired materials and structures with enhanced wear resistance is presented.

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“…Porous structures can be fabricated in different morphologies, such as strut-based (e.g., BCC and FCC) [3], TPMSs (e.g., gyroid and diamond) [4], or stochastic [5]. Among the different morphologies of porous structures, TPMS structures, particularly gyroid sheet networks, have been found to exhibit a superior performance due to their bioinspired morphology and identical mechanical properties to bone tissues [6]. Therefore, they are considered viable candidates for biomedical implants.…”

Section: Introductionmentioning

confidence: 99%