Extrusion-Based 3D Printing for Highly Porous Alginate Materials Production
| Autor: | Andrey Abramov, Natalia Menshutina, Pavel Tsygankov, Daria Lovskaya |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Polymers and Plastics Science supercritical drying 3D printing Bioengineering General. Including alchemy 02 engineering and technology 010402 general chemistry 01 natural sciences Article Biomaterials QD1-65 Tissue engineering Rheology Specific surface area Highly porous alginate QD1-999 QD146-197 Inkwell business.industry Supercritical drying Organic Chemistry thixotropic properties 021001 nanoscience & nanotechnology 0104 chemical sciences Chemistry Chemical engineering Extrusion 0210 nano-technology business Inorganic chemistry |
| Zdroj: | Gels, Vol 7, Iss 92, p 92 (2021) Gels Volume 7 Issue 3 |
| ISSN: | 2310-2861 |
| Popis: | Three-dimensional (3D) printing is a promising technology for solving a wide range of problems: regenerative medicine, tissue engineering, chemistry, etc. One of the potential applications of additive technologies is the production of highly porous structures with complex geometries, while printing is carried out using gel-like materials. However, the implementation of precise gel printing is a difficult task due to the high requirements for “ink”. In this paper, we propose the use of gel-like materials based on sodium alginate as “ink” for the implementation of the developed technology of extrusion-based 3D printing. Rheological studies were carried out for the developed alginate ink compositions. The optimal rheological properties are gel-like materials based on 2 wt% sodium alginate and 0.2 wt% calcium chloride. The 3D-printed structures with complex geometry were successfully dried using supercritical drying. The resulting aerogels have a high specific surface area (from 350 to 422 m2/g) and a high pore volume (from 3 to 3.78 cm3/g). |
| Databáze: | OpenAIRE |
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