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Harb SV, Kolanthai E, Pugazhendhi AS, Beatrice CA, Pinto LA, Neal CJ, Backes EH, Nunes AC, Selistre-de-Araújo HS, Costa LC, Coathup MJ, Seal S, Pessan LA. 3D printed bioabsorbable composite scaffolds of poly (lactic acid)-tricalcium phosphate-ceria with osteogenic property for bone regeneration. Biomater Biosyst 2024; 13:100086. [PMID: 38213985 PMCID: PMC10776431 DOI: 10.1016/j.bbiosy.2023.100086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 11/28/2023] [Accepted: 12/17/2023] [Indexed: 01/13/2024] Open
Abstract
The fabrication of customized implants by additive manufacturing has allowed continued development of the personalized medicine field. Herein, a 3D-printed bioabsorbable poly (lactic acid) (PLA)- β-tricalcium phosphate (TCP) (10 wt %) composite has been modified with CeO2 nanoparticles (CeNPs) (1, 5 and 10 wt %) for bone repair. The filaments were prepared by melt extrusion and used to print porous scaffolds. The nanocomposite scaffolds possessed precise structure with fine print resolution, a homogenous distribution of TCP and CeNP components, and mechanical properties appropriate for bone tissue engineering applications. Cell proliferation assays using osteoblast cultures confirmed the cytocompatibility of the composites. In addition, the presence of CeNPs enhanced the proliferation and differentiation of mesenchymal stem cells; thereby, increasing alkaline phosphatase (ALP) activity, calcium deposition and bone-related gene expression. Results from this study have shown that the 3D printed PLA-TCP-10%CeO2 composite scaffold could be used as an alternative polymeric implant for bone tissue engineering applications: avoiding additional/revision surgeries and accelerating the regenerative process.
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Affiliation(s)
- Samarah V. Harb
- Department of Materials Engineering (DEMa), Federal University of Sao Carlos (UFSCar), São Carlos, SP, Brazil
- Advanced Materials Processing and Analysis Center, Department of Materials Science and Engineering, University of Central Florida, Orlando, FL, USA
| | - Elayaraja Kolanthai
- Advanced Materials Processing and Analysis Center, Department of Materials Science and Engineering, University of Central Florida, Orlando, FL, USA
| | | | - Cesar A.G. Beatrice
- Department of Materials Engineering (DEMa), Federal University of Sao Carlos (UFSCar), São Carlos, SP, Brazil
| | - Leonardo A. Pinto
- Graduate Program in Materials Science and Engineering, Department of Materials Engineering (DEMa), Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
| | - Craig J. Neal
- Advanced Materials Processing and Analysis Center, Department of Materials Science and Engineering, University of Central Florida, Orlando, FL, USA
| | - Eduardo H. Backes
- Department of Materials Engineering (DEMa), Federal University of Sao Carlos (UFSCar), São Carlos, SP, Brazil
| | - Ana C.C. Nunes
- Department of Physiological Sciences, Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
| | | | - Lidiane C. Costa
- Department of Materials Engineering (DEMa), Federal University of Sao Carlos (UFSCar), São Carlos, SP, Brazil
| | - Melanie J. Coathup
- Biionix Cluster, College of Medicine, University of Central Florida, Orlando, FL, USA
| | - Sudipta Seal
- Advanced Materials Processing and Analysis Center, Department of Materials Science and Engineering, University of Central Florida, Orlando, FL, USA
- Biionix Cluster, College of Medicine, University of Central Florida, Orlando, FL, USA
| | - Luiz A. Pessan
- Department of Materials Engineering (DEMa), Federal University of Sao Carlos (UFSCar), São Carlos, SP, Brazil
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