Searched for: subject%3A%22Porous%255C%2Bbiomaterials%22
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Ghavidelnia, Naeim (author), Bodaghi, Mahdi (author), Hedayati, R. (author)
Stress shielding and micromotions are the most significant problems occurring at the bone-implants interface due to a mismatch of their mechanical properties. Mechanical 3D metamate-rials, with their exceptional behaviour and characteristics, can provide an opportunity to solve the mismatch of mechanical properties between the bone and...
journal article 2021
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Hedayati, R. (author), Ahmadi, S.M. (author), Lietaert, K. (author), Tümer, N. (author), Li, Y (author), Amin Yavari, S. (author), Zadpoor, A.A. (author)
Magnesium and its alloys have the intrinsic capability of degrading over time in vivo without leaving toxic degradation products. They are therefore suitable for use as biodegradable scaffolds that are replaced by the regenerated tissues. One of the main concerns for such applications, particularly in load-bearing areas, is the sufficient...
journal article 2018
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Hedayati, R. (author), Sadighi, M. (author), Mohammadi-Aghdam, M (author), Hosseini-Toudeshky, H (author)
Additive manufacturing techniques have made it possible to create open-cell porous structures with arbitrary micro-geometrical characteristics. Since a wide range of micro-geometrical features is available for making an implant, having a comprehensive knowledge of the mechanical response of cellular structures is very useful. In this study,...
journal article 2018
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Hedayati, R. (author), Hosseini-Toudeshky, H. (author), Sadighi, M. (author), Mohammadi-Aghdam, M. (author), Zadpoor, A.A. (author)
Advances in additive manufacturing (AM) techniques have enabled fabrication of highly porous titanium implants that combine the excellent biocompatibility of bulk titanium with all the benefits that a regular volume-porous structure has to offer (e.g. lower stiffness values comparable to those of bone). Clinical application of such...
journal article 2018
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Ahmadi, S.M. (author), Hedayati, R. (author), Li, Y (author), Lietaert, K. (author), Tümer, N. (author), Fatemi, A. (author), Rans, C.D. (author), Pouran, B. (author), Weinans, H.H. (author), Zadpoor, A.A. (author)
Additive manufacturing (AM) techniques enable fabrication of bone-mimicking meta-biomaterials with unprecedented combinations of topological, mechanical, and mass transport properties. The mechanical performance of AM meta-biomaterials is a direct function of their topological design. It is, however, not clear to what extent the material type...
journal article 2018
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Bobbert, F.S.L. (author), Lietaert, K. (author), Eftekhari, A.A. (author), Pouran, B. (author), Ahmadi, S.M. (author), Weinans, H.H. (author), Zadpoor, A.A. (author)
Porous biomaterials that simultaneously mimic the topological, mechanical, and mass transport properties of bone are in great demand but are rarely found in the literature. In this study, we rationally designed and additively manufactured (AM) porous metallic biomaterials based on four different types of triply periodic minimal surfaces (TPMS)...
journal article 2017
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Hedayati, R. (author), Janbaz, S. (author), Sadighi, M. (author), Mohammadi-Aghdam, M. (author), Zadpoor, A.A. (author)
Although the initial mechanical properties of additively manufactured porous biomaterials are intensively studied during the last few years, almost no information is available regarding the evolution of the mechanical properties of implant-bone complex as the tissue regeneration progresses. In this paper, we studied the effects of tissue...
journal article 2017
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Hedayati, R. (author), Amin Yavari, S. (author), Zadpoor, A.A. (author)
Additively manufactured porous titanium implants, in addition to preserving the excellent biocompatible properties of titanium, have very small stiffness values comparable to those of natural bones. Although usually loaded in compression, biomedical implants can also be under tensional, shear, and bending loads which leads to crack initiation...
journal article 2017
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Hedayati, R. (author), Sadighi, M (author), Mohammadi-Aghdam, M (author), Zadpoor, A.A. (author)
Additively manufacturing (AM) techniques make it possible to fabricate open-cell interconnected structures with precisely controllable micro-architectures. It has been shown that the morphology, pore size, and relative density of a porous structure determine its macro-scale homogenized mechanical properties and, thus, its biological performance...
journal article 2017
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Hedayati, R. (author), Sadighi, M. (author)
Today, interconnected open-cell porous structures made of titanium and its alloys are replacing the prevalent solid metals used in bone substitute implants. The advent of additive manufacturing techniques has enabled manufacturing of open-cell structures with arbitrary micro-structural geometry. In this paper, rhombic dodecahedron structures...
journal article 2016
Searched for: subject%3A%22Porous%255C%2Bbiomaterials%22
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