Impact of residual carbon after DLP and SPS-Sintering on compressive strength and in-VITRO bioactivity of calcium phosphate scaffolds
Digital Light Processing was used to fabricate bioactive ceramic scaffolds for bone regeneration using β-tricalcium phosphate (β-TCP) powder as a starting material. The 3D structures were de-binded in vacuum and divided in two batches: Carbon Containing samples and Carbon Free samples (obtained by f...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-09-01
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| Series: | Open Ceramics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666539522000645 |
| _version_ | 1811214325659992064 |
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| author | Claudia Paredes Jakub Roleček Lucie Pejchalová Pedro Miranda David Salamon |
| author_facet | Claudia Paredes Jakub Roleček Lucie Pejchalová Pedro Miranda David Salamon |
| author_sort | Claudia Paredes |
| collection | DOAJ |
| description | Digital Light Processing was used to fabricate bioactive ceramic scaffolds for bone regeneration using β-tricalcium phosphate (β-TCP) powder as a starting material. The 3D structures were de-binded in vacuum and divided in two batches: Carbon Containing samples and Carbon Free samples (obtained by firing at 750 °C in air after de-binding). All samples were then sintered in pressure-less SPS either at 1200 °C or 1500 °C, resulting in two different polymorphs (β and α -TCP). The influence of the de-binding method, the in-situ formation of a carbonaceous phase and different phase composition of resulting scaffolds was evaluated in terms of mechanical performance and in vitro bioactivity and solubility in simulated body fluid (SBF). All scaffolds exhibited compressive strengths within the range of cancellous bone and bone-like apatite precipitates were visible on their surface after 21 days of immersion in SBF, with the exception of carbon-free samples sintered at 1200 °C. |
| first_indexed | 2024-04-12T06:02:36Z |
| format | Article |
| id | doaj.art-47998a6421b64acd82a917e629c61f47 |
| institution | Directory Open Access Journal |
| issn | 2666-5395 |
| language | English |
| last_indexed | 2024-04-12T06:02:36Z |
| publishDate | 2022-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Open Ceramics |
| spelling | doaj.art-47998a6421b64acd82a917e629c61f472022-12-22T03:45:00ZengElsevierOpen Ceramics2666-53952022-09-0111100281Impact of residual carbon after DLP and SPS-Sintering on compressive strength and in-VITRO bioactivity of calcium phosphate scaffoldsClaudia Paredes0Jakub Roleček1Lucie Pejchalová2Pedro Miranda3David Salamon4Departamento de Ingeniería Mecánica, Energética y de los Materiales, Universidad de Extremadura, Badajoz, Spain; Corresponding author.Central European Institute of Technology, Brno University of Technology, Brno, Czech RepublicCentral European Institute of Technology, Brno University of Technology, Brno, Czech RepublicDepartamento de Ingeniería Mecánica, Energética y de los Materiales, Universidad de Extremadura, Badajoz, SpainCentral European Institute of Technology, Brno University of Technology, Brno, Czech RepublicDigital Light Processing was used to fabricate bioactive ceramic scaffolds for bone regeneration using β-tricalcium phosphate (β-TCP) powder as a starting material. The 3D structures were de-binded in vacuum and divided in two batches: Carbon Containing samples and Carbon Free samples (obtained by firing at 750 °C in air after de-binding). All samples were then sintered in pressure-less SPS either at 1200 °C or 1500 °C, resulting in two different polymorphs (β and α -TCP). The influence of the de-binding method, the in-situ formation of a carbonaceous phase and different phase composition of resulting scaffolds was evaluated in terms of mechanical performance and in vitro bioactivity and solubility in simulated body fluid (SBF). All scaffolds exhibited compressive strengths within the range of cancellous bone and bone-like apatite precipitates were visible on their surface after 21 days of immersion in SBF, with the exception of carbon-free samples sintered at 1200 °C.http://www.sciencedirect.com/science/article/pii/S2666539522000645BioceramicsScaffoldsα-TCPβ-TCPCarbonMechanical properties |
| spellingShingle | Claudia Paredes Jakub Roleček Lucie Pejchalová Pedro Miranda David Salamon Impact of residual carbon after DLP and SPS-Sintering on compressive strength and in-VITRO bioactivity of calcium phosphate scaffolds Open Ceramics Bioceramics Scaffolds α-TCP β-TCP Carbon Mechanical properties |
| title | Impact of residual carbon after DLP and SPS-Sintering on compressive strength and in-VITRO bioactivity of calcium phosphate scaffolds |
| title_full | Impact of residual carbon after DLP and SPS-Sintering on compressive strength and in-VITRO bioactivity of calcium phosphate scaffolds |
| title_fullStr | Impact of residual carbon after DLP and SPS-Sintering on compressive strength and in-VITRO bioactivity of calcium phosphate scaffolds |
| title_full_unstemmed | Impact of residual carbon after DLP and SPS-Sintering on compressive strength and in-VITRO bioactivity of calcium phosphate scaffolds |
| title_short | Impact of residual carbon after DLP and SPS-Sintering on compressive strength and in-VITRO bioactivity of calcium phosphate scaffolds |
| title_sort | impact of residual carbon after dlp and sps sintering on compressive strength and in vitro bioactivity of calcium phosphate scaffolds |
| topic | Bioceramics Scaffolds α-TCP β-TCP Carbon Mechanical properties |
| url | http://www.sciencedirect.com/science/article/pii/S2666539522000645 |
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