Lattice structures made by laser powder bed fusion

Mirzaali, Mohammad J.; Azarniya, Abolfazl; Sovizi, Saeed; Zhou, Jie; Zadpoor, Amir A.

doi:10.1016/b978-0-12-824090-8.00020-2

Cited by 9 publications

(4 citation statements)

References 237 publications

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“…Multi-material 3D printing techniques have, however, become increasingly available during the last 5-10 years. [53][54][55] It is, therefore, possible nowadays to combine arbitrarily complex geometries with an arbitrary spatial distribution of materials with different properties and functionalities. The space of possible designs has, thus, greatly expanded and now includes not only the topology and geometry of the individual repetitive unit cells making up the design but also the exact mechanical and physical properties of each voxel within the construct 19,38,56,57 [Fig.…”

Section: Designmentioning

confidence: 99%

Design, material, function, and fabrication of metamaterials

et al. 2023

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Metamaterials are engineered materials with unusual, unique properties and advanced functionalities that are a direct consequence of their microarchitecture. While initial properties and functionalities were limited to optics and electromagnetism, many novel categories of metamaterials that have applications in many different areas of research and practice, including acoustic, mechanics, biomaterials, and thermal engineering, have appeared in the last decade. This editorial serves as a prelude to the special issue with the same title that presents a number of selected studies in these directions. In particular, we review some of the most important developments in the design and fabrication of metamaterials with an emphasis on the more recent categories. We also suggest some directions for future research.

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Section: Designmentioning

confidence: 99%

Design, material, function, and fabrication of metamaterials

et al. 2023

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“…Cellular structures offer several advantages, including stiffness ne-tuning, weight control through lightweight design, osteoconductivity, and osteointegration [15,3]. Consequently, extensive efforts have been devoted to understanding the properties of lattice structures and their advantages or limitations for speci c applications [14].…”

Section: Introductionmentioning

confidence: 99%

Post-traumatic Talus Avascular necrosis. Designing and additive manufacturing of talus implant as an alternative for leg amputation

Antounian,

Avagyan,

Ghaltaghchyan

et al. 2024

Preprint

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This study presents the design and development of a meshed implant intended for talus replacement surgery. Our focus was on a young adult patient who had sustained severe damage to the talus, resulting in avascular necrosis (AVN) and subsequent bone collapse. This condition caused persistent and debilitating pain, leading the medical team to consider amputation of the left foot at the ankle level as a last resort. Instead, we proposed an innovative approach involving the fabrication of a patient-specific implant specifically designed for pan-talar fusion. The implant was created using selective laser melting technology, which allowed for precise and accurate construction of the unique mesh structure. To ensure its mechanical integrity, we conducted uniaxial compression experiments, which confirmed that the proposed structure met all essential mechanical requirements, including compressive loading. The patient underwent regular monitoring for a period of 12 months. The meshed implant exhibited excellent osteoconductive properties, as evidenced by the successful ingrowth of bone into the mesh pores, resulting in a fusion between the implant and the surrounding bones.

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“…Additive manufacturing (AM) processes, also known as 3D printing techniques, enable the fabrication of 3D objects with complex geometries and tailored mechanical properties. [1][2][3][4][5] This technology, however, has hitherto been largely constrained to the creation of static objects that exhibit constant properties over time. [6,7] This limitation has been mitigated by the advent of 4D printing, a disruptive technology that introduces a temporal component to the traditionally static 3D printed constructs, thereby enabling the fabrication of dynamic structures that respond to external stimuli.…”

Section: Introductionmentioning

confidence: 99%

4D Printing for Biomedical Applications

Yarali,

Mirzaali,

Ghalayaniesfahani

et al. 2024

Advanced Materials

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Abstract4D (bio‐)printing endows 3D printed (bio‐)materials with multiple functionalities and dynamic properties. 4D printed materials have been recently used in biomedical engineering for the design and fabrication of biomedical devices, such as stents, occluders, micro‐needles, smart 3D‐cell engineered micro‐environments, drug delivery systems, wound closures, and implantable medical devices. However, the success of 4D printing relies on the rational design of 4D printed objects, the selection of smart materials, and the availability of appropriate types of external (multi‐)stimuli. Here, we first highlight the different types of smart materials, external stimuli, and design strategies used in 4D (bio‐)printing. Then, we present a critical review of the biomedical applications of 4D printing and discuss the future directions of biomedical research in this exciting area, including In vivo tissue regeneration studies, the implementation of multiple materials with reversible shape memory behaviors, the creation of fast shape‐transformation responses, the ability to operate at the microscale, untethered activation and control, and the application of (machine learning‐based) modeling approaches to predict the structure‐property and design‐shape transformation relationships of 4D (bio)printed constructs.This article is protected by copyright. All rights reserved

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Lattice structures made by laser powder bed fusion

Cited by 9 publications

References 237 publications

Design, material, function, and fabrication of metamaterials

Design, material, function, and fabrication of metamaterials

Post-traumatic Talus Avascular necrosis. Designing and additive manufacturing of talus implant as an alternative for leg amputation

4D Printing for Biomedical Applications

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