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Obtaining biocompatible ceramic scaffolds of calcium phosphates through ceramic stereolithography.

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Title: Obtaining biocompatible ceramic scaffolds of calcium phosphates through ceramic stereolithography.
Authors: Duque-Uribe, Carolina1 (AUTHOR) cduqueu@unal.edu.co, López Vargas, Valentina1 (AUTHOR) vlopezv@unal.edu.co, Moreno Florez, Ana Isabel1 (AUTHOR) animorenofl@unal.edu.co, Pelaez-Vargas, Alejandro2 (AUTHOR) alejandro.pelaezv@campusucc.edu.co, Ossa, Alex3 (AUTHOR) eossa@eafit.edu.co, Cárdenas-Ramírez, Carolina4 (AUTHOR) cacardenas@corona.com.co, Restrepo-Vélez, Sebastián4 (AUTHOR) srestrepov@corona.com.co, Vásquez, Andrés Felipe5 (AUTHOR) AFVasquez@newstetic.com, Garcia, Claudia1 (AUTHOR) cpgarcia@unal.edu.co
Source: Journal of Materials Science: Materials in Medicine. 6/17/2025, Vol. 36 Issue 1, p1-14. 14p.
Subjects: Cancellous bone, Compact bone, Bone regeneration, Minimal surfaces, Biomedical materials, Propolis
Abstract: Ceramic stereolithography scaffolds with designs based on triple periodic minimal surfaces (TPMS) were developed for potential applications in bone tissue regeneration. An acrylic-based resin with calcium phosphate nanoparticles were used. Particles were synthesized via Combustion in solution, resulting in hydroxyapatite and β-TCP phases. Suspensions with 35, 40, and 50 vol% particles, using a 10 wt% of dispersant, were prepared and rheologically characterized to ensure suitable viscosities for printing, and were used to print gyroid scaffolds by DLP technique. The suspension with the highest ceramic load demonstrated the highest viscosity. The green bodies were morphologically and mechanically characterized before and after sintering. Volumetric shrinkage, morphological characteristics by digital and FE-SEM images, and compressive strength were evaluated. Polymeric-ceramic (Hybrid) scaffolds before sintering exhibited better compressive strength than sintered ones. Ceramic scaffolds achieved compressive strength values up to 0.9 MPa, comparable to those of cancellous and cortical bone. The optimal scaffolds (50CPF) were subjected to degradation tests in PBS and were impregnated with ethanolic extract of propolis from Arauca, Colombia, for biological analysis using the L929 cell line. The results indicate that ceramic stereolithography is an effective technique to produce scaffolds with optimal characteristics for potential applications in bone tissue regeneration. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Materials Science: Materials in Medicine is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Obtaining biocompatible ceramic scaffolds of calcium phosphates through ceramic stereolithography.
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  Data: <searchLink fieldCode="AR" term="%22Duque-Uribe%2C+Carolina%22">Duque-Uribe, Carolina</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> cduqueu@unal.edu.co</i><br /><searchLink fieldCode="AR" term="%22López+Vargas%2C+Valentina%22">López Vargas, Valentina</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> vlopezv@unal.edu.co</i><br /><searchLink fieldCode="AR" term="%22Moreno+Florez%2C+Ana+Isabel%22">Moreno Florez, Ana Isabel</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> animorenofl@unal.edu.co</i><br /><searchLink fieldCode="AR" term="%22Pelaez-Vargas%2C+Alejandro%22">Pelaez-Vargas, Alejandro</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> alejandro.pelaezv@campusucc.edu.co</i><br /><searchLink fieldCode="AR" term="%22Ossa%2C+Alex%22">Ossa, Alex</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> eossa@eafit.edu.co</i><br /><searchLink fieldCode="AR" term="%22Cárdenas-Ramírez%2C+Carolina%22">Cárdenas-Ramírez, Carolina</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> cacardenas@corona.com.co</i><br /><searchLink fieldCode="AR" term="%22Restrepo-Vélez%2C+Sebastián%22">Restrepo-Vélez, Sebastián</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> srestrepov@corona.com.co</i><br /><searchLink fieldCode="AR" term="%22Vásquez%2C+Andrés+Felipe%22">Vásquez, Andrés Felipe</searchLink><relatesTo>5</relatesTo> (AUTHOR)<i> AFVasquez@newstetic.com</i><br /><searchLink fieldCode="AR" term="%22Garcia%2C+Claudia%22">Garcia, Claudia</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> cpgarcia@unal.edu.co</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Materials+Science%3A+Materials+in+Medicine%22">Journal of Materials Science: Materials in Medicine</searchLink>. 6/17/2025, Vol. 36 Issue 1, p1-14. 14p.
– Name: Subject
  Label: Subjects
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  Data: <searchLink fieldCode="DE" term="%22Cancellous+bone%22">Cancellous bone</searchLink><br /><searchLink fieldCode="DE" term="%22Compact+bone%22">Compact bone</searchLink><br /><searchLink fieldCode="DE" term="%22Bone+regeneration%22">Bone regeneration</searchLink><br /><searchLink fieldCode="DE" term="%22Minimal+surfaces%22">Minimal surfaces</searchLink><br /><searchLink fieldCode="DE" term="%22Biomedical+materials%22">Biomedical materials</searchLink><br /><searchLink fieldCode="DE" term="%22Propolis%22">Propolis</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Ceramic stereolithography scaffolds with designs based on triple periodic minimal surfaces (TPMS) were developed for potential applications in bone tissue regeneration. An acrylic-based resin with calcium phosphate nanoparticles were used. Particles were synthesized via Combustion in solution, resulting in hydroxyapatite and β-TCP phases. Suspensions with 35, 40, and 50 vol% particles, using a 10 wt% of dispersant, were prepared and rheologically characterized to ensure suitable viscosities for printing, and were used to print gyroid scaffolds by DLP technique. The suspension with the highest ceramic load demonstrated the highest viscosity. The green bodies were morphologically and mechanically characterized before and after sintering. Volumetric shrinkage, morphological characteristics by digital and FE-SEM images, and compressive strength were evaluated. Polymeric-ceramic (Hybrid) scaffolds before sintering exhibited better compressive strength than sintered ones. Ceramic scaffolds achieved compressive strength values up to 0.9 MPa, comparable to those of cancellous and cortical bone. The optimal scaffolds (50CPF) were subjected to degradation tests in PBS and were impregnated with ethanolic extract of propolis from Arauca, Colombia, for biological analysis using the L929 cell line. The results indicate that ceramic stereolithography is an effective technique to produce scaffolds with optimal characteristics for potential applications in bone tissue regeneration. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Materials Science: Materials in Medicine is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s10856-025-06903-5
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        Text: English
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        PageCount: 14
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    Subjects:
      – SubjectFull: Cancellous bone
        Type: general
      – SubjectFull: Compact bone
        Type: general
      – SubjectFull: Bone regeneration
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      – SubjectFull: Minimal surfaces
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      – SubjectFull: Biomedical materials
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      – SubjectFull: Propolis
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      – TitleFull: Obtaining biocompatible ceramic scaffolds of calcium phosphates through ceramic stereolithography.
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              Text: 6/17/2025
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