The 3D-Printed Bilayer’s Bioactive-Biomaterials Scaffold for Full-Thickness Articular Cartilage Defects Treatment
| Autor: | Kittiya Thunsiri, Dumnoensun Pruksakorn, Siwasit Pitjamit, Wassanai Wattanutchariya, Wasawat Nakkiew, Peraphan Pothacharoen |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
musculoskeletal diseases
Scaffold Materials science 02 engineering and technology macromolecular substances 010402 general chemistry 01 natural sciences lcsh:Technology Article Chitosan chemistry.chemical_compound Polylactic acid Tissue engineering General Materials Science Bone regeneration lcsh:Microscopy lcsh:QC120-168.85 lcsh:QH201-278.5 lcsh:T Bilayer technology industry and agriculture 3D printing musculoskeletal system 021001 nanoscience & nanotechnology bilayer scaffold 0104 chemical sciences full-thickness articular cartilage defects SILK chemistry lcsh:TA1-2040 tissue engineering Polycaprolactone lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering 0210 nano-technology lcsh:Engineering (General). Civil engineering (General) lcsh:TK1-9971 Biomedical engineering biomaterials |
| Zdroj: | Materials Materials, Vol 13, Iss 3417, p 3417 (2020) Volume 13 Issue 15 |
| ISSN: | 1996-1944 |
| Popis: | The full-thickness articular cartilage defect (FTAC) is an abnormally severe grade of articular cartilage (AC) injury. An osteochondral autograft transfer (OAT) is the recommended treatment, but the increasing morbidity rate from osteochondral plug harvesting is a limitation. Thus, the 3D-printed bilayer&rsquo s bioactive-biomaterials scaffold is of major interest. Polylactic acid (PLA) and polycaprolactone (PCL) were blended with hydroxyapatite (HA) for the 3D-printed bone layer of the bilayer&rsquo s bioactive-biomaterials scaffold (B-BBBS). Meanwhile, the blended PLA/PCL filament was 3D printed and combined with a chitosan (CS)/silk firoin (SF) using a lyophilization technique to fabricate the AC layer of the bilayer&rsquo s bioactive-biomaterials scaffold (AC-BBBS). Material characterization and mechanical and biological tests were performed. The fabrication process consists of combining the 3D-printed structure (AC-BBBS and B-BBBS) and a lyophilized porous AC-BBBS. The morphology and printing abilities were investigated, and biological tests were performed. Finite element analysis (FEA) was performed to predict the maximum load that the bilayer&rsquo s bioactive-biomaterials scaffold (BBBS) could carry. The presence of HA and CS/SF in the PLA/PCL structure increased cell proliferation. The FEA predicted the load carrying capacity to be up to 663.2 N. All tests indicated that it is possible for BBBS to be used in tissue engineering for AC and bone regeneration in FTAC treatment. |
| Databáze: | OpenAIRE |
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