| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Wysocki, Bartłomiej
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2022How to Control the Crystallization of Metallic Glasses During Laser Powder Bed Fusion? Towards Part-Specific 3d Printing of in Situ Composites
- 2020Analysis of Microstructure and Properties of a Ti–AlN Composite Produced by Selective Laser Meltingcitations
- 2019The influence of chemical polishing of titanium scaffolds on their mechanical strength and in-vitro cell responsecitations
- 2019New approach to amorphization of alloys with low glass forming ability via selective laser meltingcitations
- 2018The Influence of Selective Laser Melting (SLM) Process Parameters on In-Vitro Cell Responsecitations
- 2018Investigation of the relationship between morphology and permeability for open-cell foams using virtual materials testingcitations
- 2018Structure and porosity of titanium scaffolds manufactured by selective laser meltingcitations
- 2017Microstructure and mechanical properties investigation of CP titanium processed by selective laser melting (SLM)citations
- 2017Fabrication of custom designed spinal disc replacement for veterinary applications
- 2017Laser and Electron Beam Additive Manufacturing Methods of Fabricating Titanium Bone Implantscitations
- 2016The process of design and manufacturing of titanium scaffolds in the SLM technology for tissue engineering
- 2016Post Processing and Biological Evaluation of the Titanium Scaffolds for Bone Tissue Engineeringcitations
- 2016The Novel Scanning Strategy For Fabrication Metallic Glasses By Selective Laser Melting
- 2015CNTs as ion carriers in formation of calcium phosphate coatingscitations
Places of action
| Organizations | Location | People |
|---|
article
The influence of chemical polishing of titanium scaffolds on their mechanical strength and in-vitro cell response
Abstract
Selective Laser Melting (SLM) is a powder-bed-based additive manufacturing method, using a laser beam, which can be used to produce metallic scaffolds for bone regeneration. However, this process also has a few disadvantages. One of its drawbacks is the necessity of post-processing in order to improve the surface finish. Another drawback lies in the removal of unmelted powder particles from the build. In this study, the influence of chemical polishing of SLM fabricated titanium scaffolds on their mechanical strength and in vitro cellular response was investigated. Scaffolds with bimodal pore size (200 µm core and 500 µm shell) were fabricated by SLM from commercially pure titanium powder and then chemically treated in HF/HNO3 solutions to remove unmelted powder particles. The cell viability and mechanical strength were compared between as-made and chemically-treated scaffolds. The chemical treatment was successful in the removal of unmelted powder particles from the titanium scaffold. The Young’s modulus of the fabricated cellular structures was of 42.7 and 13.3 GPa for as-made and chemically-treated scaffolds respectively. These values are very similar to the Young’s modulus of living human bone. Chemical treatment did not affect negatively cell proliferation and differentiation. Additionally, the chemically-treated scaffolds had a twofold increase in colonization of osteoblast cells migrating out of multicellular spheroids. Furthermore, X-ray computed microtomography confirmed that chemically-treated scaffolds met the dimensions originally set in the CAD models. Therefore, chemical-treatment can be used as a tool to cancel the discrepancies between the designed and fabricated objects, thus enabling fabrication of finer structures with regular struts and high resolution.