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Daskalakis E, Huang B, Vyas C, Acar AA, Liu F, Fallah A, Cooper G, Weightman A, Blunn G, Koç B, Bartolo P. Bone Bricks: The Effect of Architecture and Material Composition on the Mechanical and Biological Performance of Bone Scaffolds. ACS OMEGA 2022; 7:7515-7530. [PMID: 35284712 PMCID: PMC8908495 DOI: 10.1021/acsomega.1c05437] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 01/14/2022] [Indexed: 05/14/2023]
Abstract
Large bone loss injuries require high-performance scaffolds with an architecture and material composition resembling native bone. However, most bone scaffold studies focus on three-dimensional (3D) structures with simple rectangular or circular geometries and uniform pores, not able to recapitulate the geometric characteristics of the native tissue. This paper addresses this limitation by proposing novel anatomically designed scaffolds (bone bricks) with nonuniform pore dimensions (pore size gradients) designed based on new lay-dawn pattern strategies. The gradient design allows one to tailor the properties of the bricks and together with the incorporation of ceramic materials allows one to obtain structures with high mechanical properties (higher than reported in the literature for the same material composition) and improved biological characteristics.
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Affiliation(s)
- Evangelos Daskalakis
- School of Mechanical,
Aerospace and Civil Engineering, University
of Manchester, ManchesterM13 9PL, U.K.
| | - Boyang Huang
- School of Mechanical,
Aerospace and Civil Engineering, University
of Manchester, ManchesterM13 9PL, U.K.
| | - Cian Vyas
- School of Mechanical,
Aerospace and Civil Engineering, University
of Manchester, ManchesterM13 9PL, U.K.
| | - Anil A. Acar
- Integrated
Manufacturing Technologies Research and Application Center, Sabanci University, Tuzla 34956, Istanbul, Turkey
- SUNUM Nanotechnology
Research Center, Sabanci University, Tuzla 34956, Istanbul, Turkey
- Faculty
of Engineering and Natural Sciences, Sabanci
University, Tuzla 34956, Istanbul, Turkey
| | - Fengyuan Liu
- Department of
Mechanical Engineering, School of Civil, Aerospace and Mechanical
Engineering, Faculty of Engineering, University
of Bristol, Bristol BS8 1TR, U.K.
| | - Ali Fallah
- Integrated
Manufacturing Technologies Research and Application Center, Sabanci University, Tuzla 34956, Istanbul, Turkey
- SUNUM Nanotechnology
Research Center, Sabanci University, Tuzla 34956, Istanbul, Turkey
- Faculty
of Engineering and Natural Sciences, Sabanci
University, Tuzla 34956, Istanbul, Turkey
| | - Glen Cooper
- School of Mechanical,
Aerospace and Civil Engineering, University
of Manchester, ManchesterM13 9PL, U.K.
| | - Andrew Weightman
- School of Mechanical,
Aerospace and Civil Engineering, University
of Manchester, ManchesterM13 9PL, U.K.
| | - Gordon Blunn
- School of Pharmacy and Biomedical Sciences, University of Portsmouth, PortsmouthPO1 2DT, U.K.
| | - Bahattin Koç
- Integrated
Manufacturing Technologies Research and Application Center, Sabanci University, Tuzla 34956, Istanbul, Turkey
- SUNUM Nanotechnology
Research Center, Sabanci University, Tuzla 34956, Istanbul, Turkey
- Faculty
of Engineering and Natural Sciences, Sabanci
University, Tuzla 34956, Istanbul, Turkey
| | - Paulo Bartolo
- School of Mechanical,
Aerospace and Civil Engineering, University
of Manchester, ManchesterM13 9PL, U.K.
- Singapore
Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, 639798, Singapore
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