A simple recipe for direct writing complex 45S5 Bioglass® 3D scaffolds

Eqtesadi, Siamak; Motealleh, Azadeh; Miranda, Pedro; Lemos, A.F.; Rebelo, Avito; Ferreira, J.M.F.

doi:10.1016/j.matlet.2012.11.043

Cited by 103 publications

(85 citation statements)

References 20 publications

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“…They include filters, laboratory equipment, catalysts, and catalyst carriers (Robocasting Enterprises LLC). Extrusion freeformed parts may find usage as solid ceramic prototypes, [137] photonic bandgap structures, [119,[167][168][169] piezoactuators, [145] microbatteries, [170] graded structures, [160] biomaterials, [125,144,147,154,155,164,[171][172][173][174][175][176][177][178][179][180][181][182] as well as military and aerospace applications, such as radomes and missile propulsion nozzles. [160] …”

Section: Present and Future Applicationsmentioning

confidence: 99%

Additive Manufacturing of Ceramic‐Based Materials

et al. 2014

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This paper offers a review of present achievements in the field of processing of ceramic-based materials with complex geometry using the main additive manufacturing (AM) technologies. In AM, the geometrical design of a desired ceramic-based component is combined with the materials design. In this way, the fabrication times and the product costs of ceramic-based parts with required properties can be substantially reduced. However, dimensional accuracy and surface finish still remain crucial features in today's AM due to the layer-by-layer formation of the parts. In spite of the fact that significant progress has been made in the development of feedstock materials, the most difficult limitations for AM technologies are the restrictions set by material selection for each AM method and aspects considering the inner architectural design of the manufactured parts. Hence, any future progress in the field of AM should be based on the improvement of the existing technologies or, alternatively, the development of new approaches with an emphasis on parts allowing the near-net formation of ceramic structures, while optimizing the design of new materials and of the part architecture.

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Section: Present and Future Applicationsmentioning

confidence: 99%

Additive Manufacturing of Ceramic‐Based Materials

et al. 2014

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“…In contrast, the compressive strength values of the scaffold fabricated from 70-Di-10FA-20TCP ( Figure 4b) were significantly higher in comparison to those reported for cancellous bone (212 MPa) [36][37][38]. …”

Section: Alkali-free Bioactive Glass Compositionsmentioning

confidence: 84%

“…Other interesting features of these bioactive glass compositions are the easiness of dispersing the glass powder frits in aqueous suspensions and scaffold fabrication by additive manufacturing techniques [36]. The pH values of the suspensions are lower in comparison to those of 45S5 Bioglass® and the particle size of powder frits can be more conveniently reduced and expose a larger surface area to the dispersion liquid without undergoing a so extensive dissolution [37,38]. Still more important from the overall processing point of view is the excellent sintering ability, achieving full densification before the onset of crystallization, resulting in strong mechanical properties [25][26][27][28][31][32][33].…”

Section: Alkali-free Bioactive Glass Compositionsmentioning

confidence: 99%

“…Figure 4 compares porous scaffolds fabricated by robo casting, an extrusion based additive manufacturing technique that enables designing not only the external form and dimensions, but also tailoring the internal structure. The starting materials were 45S5 Bioglass® (Figure 4a) [37,38], and our alkali-free bioactive glass 70-Di-10FA-20TCP (Figure 4b) [36].…”

Section: Alkali-free Bioactive Glass Compositionsmentioning

confidence: 99%

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The key Features expected from a Perfect Bioactive Glass –How Far we still are from an Ideal Composition?

Ferreira¹

2017

BJSTR

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“…This 3D structure consists of a mesh of interpenetrating rods that is formed layer by layer by extrusion of the ink through the nozzle. This robocasting technique has been successfully applied for the fabrication of porous scaffolds from hydroxyapatite (Michna et al 2005) and β-tricalcium phosphate (Miranda et al 2006;Martínez-Vázquez et al 2010), as well as bioactive glasses (Deliormanli and Rahaman 2012;Eqtesadi et al 2013). The material properties of the generated scaffolds have been investigated (Miranda et al 2008).…”

Section: Robocastingmentioning

confidence: 99%

Inorganic Polymers: Morphogenic Inorganic Biopolymers for Rapid Prototyping Chain

Müller

Schröder

Shen

et al. 2013

Biomedical Inorganic Polymers

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In recent years, considerable progress has been achieved towards the development of customized scaffold materials, in particular for bone tissue engineering and repair, by the introduction of rapid prototyping or solid freeform fabrication techniques. These new fabrication techniques allow to overcome many problems associated with conventional bone implants, such as inadequate external morphology and internal architecture, porosity and interconnectivity, and low reproducibility. However, the applicability of these new techniques is still hampered by the fact that high processing temperature or a postsintering is often required to increase the mechanical stability of the generated scaffold, as well as a post-processing, i.e., surface modification/functionalization to enhance the biocompatibility of the scaffold or to bind some bioactive component. A solution might be provided by the introduction of novel inorganic biopolymers, biosilica and polyphosphate, which resist harsh conditions applied in the RP chain and are morphogenetically active and do not need supplementation by growth factors/cytokines to stimulate the growth and the differentiation of bone-forming cells.

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A simple recipe for direct writing complex 45S5 Bioglass® 3D scaffolds

Cited by 103 publications

References 20 publications

Additive Manufacturing of Ceramic‐Based Materials

Additive Manufacturing of Ceramic‐Based Materials

The key Features expected from a Perfect Bioactive Glass –How Far we still are from an Ideal Composition?

Inorganic Polymers: Morphogenic Inorganic Biopolymers for Rapid Prototyping Chain

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