Engineering of silicone-based mixtures for the digital light processing of Åkermanite scaffolds

Dasan, Arish; Elsayed, Hamada; Kraxner, Jozef; Galusek, Dušan; Colombo, Paolo; Bernardo, Enrico

doi:10.1016/j.jeurceramsoc.2019.11.087

Cited by 24 publications

(14 citation statements)

References 36 publications

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“…Along with a vast range of other polymer-derived ceramics, such bioceramics can be prepared by well-established polymer-shaping processes, including direct foaming [ 8 , 11 ] and modern additive manufacturing technologies, including direct ink writing and digital light processing [ 8 , 10 , 14 ], before thermal treatment. Some constituents may even operate at different stages of the overall process.…”

Section: Introductionmentioning

confidence: 99%

Polymer-Derived Biosilicate®-like Glass-Ceramics: Engineering of Formulations and Additive Manufacturing of Three-Dimensional Scaffolds

et al. 2021

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Silicone resins, filled with phosphates and other oxide fillers, yield upon firing in air at 1100 °C, a product resembling Biosilicate® glass-ceramics, one of the most promising systems for tissue engineering applications. The process requires no preliminary synthesis of parent glass, and the polymer route enables the application of direct ink writing (DIW) of silicone-based mixtures, for the manufacturing of reticulated scaffolds at room temperature. The thermal treatment is later applied for the conversion into ceramic scaffolds. The present paper further elucidates the flexibility of the approach. Changes in the reference silicone and firing atmosphere (from air to nitrogen) were studied to obtain functional composite biomaterials featuring a carbon phase embedded in a Biosilicate®-like matrix. The microstructure was further modified either through a controlled gas release at a low temperature, or by the revision of the adopted additive manufacturing technology (from DIW to digital light processing).

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Section: Introductionmentioning

confidence: 99%

Polymer-Derived Biosilicate®-like Glass-Ceramics: Engineering of Formulations and Additive Manufacturing of Three-Dimensional Scaffolds

et al. 2021

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“…Due to controllable mechanical properties and degradation rate, åkermanite (Ca 2 MgSi 2 O 7 ) bioceramics have received significant attention for the production of scaffolds for bone tissue engineering 1–3 . The typical route to åkermanite bioceramics consists of the sintering of powders previously prepared by sol‐gel processing 4 ; the thermal transformation of silicone polymers, added with oxide fillers, may provide a valid alternative for direct synthesis, 1–2 but there are issues of phase purity may arise due to the addition of B‐based fluxes.…”

Section: Introductionmentioning

confidence: 99%

“…silicone polymers, added with oxide fillers, may provide a valid alternative for direct synthesis, [1][2] but there are issues of phase purity may arise due to the addition of B-based fluxes.…”

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confidence: 99%

Åkermanite glass microspheres: Preparation and perspectives of sinter‐crystallization

Dasan

Talimian

Kraxner

et al. 2021

Int J of Appl Glass Sci

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“…However, these organometallic polymers are expensive and oxygen sensitive. Thus, polysiloxanes are seen as alternative compounds [16,17]. As an example, polysiloxanes have already been used in order to form Åkermanite (Ca 2 MgSi 2 O 7 ) reticulated scaffolds by DLP [17].…”

Section: Introductionmentioning

confidence: 99%

“…Thus, polysiloxanes are seen as alternative compounds [16,17]. As an example, polysiloxanes have already been used in order to form Åkermanite (Ca 2 MgSi 2 O 7 ) reticulated scaffolds by DLP [17]. Accordingly, the objective of the work reported in this paper was to investigate the microstructure developed after pyrolysis of a cross-linked commercially-available polysiloxane compound.…”

Section: Introductionmentioning

confidence: 99%

Transmission Electron Microscopy Investigations on a Polysiloxane Preceramic Polymer Pyrolyzed at High Temperature in Argon

et al. 2020

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A commercially available methylphenylvinylhydrogen polysiloxane preceramic polymer was cross-linked and pyrolyzed in argon in order to study if this compound could be used as an organic precursor for the manufacture of silicon carbide parts by photopolymerisation-based three-dimensional printing. X-Ray diffraction experiments and transmission electron microscopy observations showed that the pyrolyzed material was constituted by an interconnected polycrystalline network made of faulted/twinned β-SiC grains surrounded by an amorphous and porous second phase mainly constituted (at least 80 at%) of carbon. The free carbon residual content was estimated to be around 17.2 wt%. Additional efforts are then required to be able to use such a preceramic polymer to manufacture SiC parts by photopolymerisation-based three-dimensional printing.

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Engineering of silicone-based mixtures for the digital light processing of Åkermanite scaffolds

Cited by 24 publications

References 36 publications

Polymer-Derived Biosilicate®-like Glass-Ceramics: Engineering of Formulations and Additive Manufacturing of Three-Dimensional Scaffolds

Polymer-Derived Biosilicate®-like Glass-Ceramics: Engineering of Formulations and Additive Manufacturing of Three-Dimensional Scaffolds

Åkermanite glass microspheres: Preparation and perspectives of sinter‐crystallization

Transmission Electron Microscopy Investigations on a Polysiloxane Preceramic Polymer Pyrolyzed at High Temperature in Argon

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