3D Printing of Hierarchically Porous Lattice Structures Based on Åkermanite Glass Microspheres and Reactive Silicone Binder
The present study illustrates the manufacturing method of hierarchically porous 3D scaffolds based on åkermanite as a promising bioceramic for stereolithography. The macroporosity was designed by implementing 3D models corresponding to different lattice structures (cubic, diamond, Kelvin, and Kagome...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-01-01
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| Series: | Journal of Functional Biomaterials |
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| Online Access: | https://www.mdpi.com/2079-4983/13/1/8 |
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| author | Arish Dasan Jozef Kraxner Luca Grigolato Gianpaolo Savio Hamada Elsayed Dušan Galusek Enrico Bernardo |
| author_facet | Arish Dasan Jozef Kraxner Luca Grigolato Gianpaolo Savio Hamada Elsayed Dušan Galusek Enrico Bernardo |
| author_sort | Arish Dasan |
| collection | DOAJ |
| description | The present study illustrates the manufacturing method of hierarchically porous 3D scaffolds based on åkermanite as a promising bioceramic for stereolithography. The macroporosity was designed by implementing 3D models corresponding to different lattice structures (cubic, diamond, Kelvin, and Kagome). To obtain micro-scale porosity, flame synthesized glass microbeads with 10 wt% of silicone resins were utilized to fabricate green scaffolds, later converted into targeted bioceramic phase by firing at 1100 °C in air. No chemical reaction between the glass microspheres, crystallizing into åkermanite, and silica deriving from silicone oxidation was observed upon heat treatment. Silica acted as a binder between the adjacent microspheres, enhancing the creation of microporosity, as documented by XRD, and SEM coupled with EDX analysis. The formation of ‘spongy’ struts was confirmed by infiltration with Rhodamine B solution. The compressive strength of the sintered porous scaffolds was up to 0.7 MPa with the porosity of 68–84%. |
| first_indexed | 2024-03-09T19:37:00Z |
| format | Article |
| id | doaj.art-e32f917d918a4124a349c23c22fd9b40 |
| institution | Directory Open Access Journal |
| issn | 2079-4983 |
| language | English |
| last_indexed | 2024-03-09T19:37:00Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Functional Biomaterials |
| spelling | doaj.art-e32f917d918a4124a349c23c22fd9b402023-11-24T01:53:21ZengMDPI AGJournal of Functional Biomaterials2079-49832022-01-01131810.3390/jfb130100083D Printing of Hierarchically Porous Lattice Structures Based on Åkermanite Glass Microspheres and Reactive Silicone BinderArish Dasan0Jozef Kraxner1Luca Grigolato2Gianpaolo Savio3Hamada Elsayed4Dušan Galusek5Enrico Bernardo6Centre for Functional and Surface-Functionalized Glass, Alexander Dubček University of Trenčín, 911 50 Trenčín, SlovakiaCentre for Functional and Surface-Functionalized Glass, Alexander Dubček University of Trenčín, 911 50 Trenčín, SlovakiaDepartment of Industrial Engineering, Università degli Studi di Padova, 35131 Padova, ItalyDepartment of Civil, Environmental and Architectural Engineering (ICEA), University of Padova, 35131 Padova, ItalyDepartment of Industrial Engineering, Università degli Studi di Padova, 35131 Padova, ItalyCentre for Functional and Surface-Functionalized Glass, Alexander Dubček University of Trenčín, 911 50 Trenčín, SlovakiaDepartment of Industrial Engineering, Università degli Studi di Padova, 35131 Padova, ItalyThe present study illustrates the manufacturing method of hierarchically porous 3D scaffolds based on åkermanite as a promising bioceramic for stereolithography. The macroporosity was designed by implementing 3D models corresponding to different lattice structures (cubic, diamond, Kelvin, and Kagome). To obtain micro-scale porosity, flame synthesized glass microbeads with 10 wt% of silicone resins were utilized to fabricate green scaffolds, later converted into targeted bioceramic phase by firing at 1100 °C in air. No chemical reaction between the glass microspheres, crystallizing into åkermanite, and silica deriving from silicone oxidation was observed upon heat treatment. Silica acted as a binder between the adjacent microspheres, enhancing the creation of microporosity, as documented by XRD, and SEM coupled with EDX analysis. The formation of ‘spongy’ struts was confirmed by infiltration with Rhodamine B solution. The compressive strength of the sintered porous scaffolds was up to 0.7 MPa with the porosity of 68–84%.https://www.mdpi.com/2079-4983/13/1/8bioceramicsåkermaniteglass microspheresadditive manufacturingsilicones |
| spellingShingle | Arish Dasan Jozef Kraxner Luca Grigolato Gianpaolo Savio Hamada Elsayed Dušan Galusek Enrico Bernardo 3D Printing of Hierarchically Porous Lattice Structures Based on Åkermanite Glass Microspheres and Reactive Silicone Binder Journal of Functional Biomaterials bioceramics åkermanite glass microspheres additive manufacturing silicones |
| title | 3D Printing of Hierarchically Porous Lattice Structures Based on Åkermanite Glass Microspheres and Reactive Silicone Binder |
| title_full | 3D Printing of Hierarchically Porous Lattice Structures Based on Åkermanite Glass Microspheres and Reactive Silicone Binder |
| title_fullStr | 3D Printing of Hierarchically Porous Lattice Structures Based on Åkermanite Glass Microspheres and Reactive Silicone Binder |
| title_full_unstemmed | 3D Printing of Hierarchically Porous Lattice Structures Based on Åkermanite Glass Microspheres and Reactive Silicone Binder |
| title_short | 3D Printing of Hierarchically Porous Lattice Structures Based on Åkermanite Glass Microspheres and Reactive Silicone Binder |
| title_sort | 3d printing of hierarchically porous lattice structures based on akermanite glass microspheres and reactive silicone binder |
| topic | bioceramics åkermanite glass microspheres additive manufacturing silicones |
| url | https://www.mdpi.com/2079-4983/13/1/8 |
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