LAPSE:2020.1135
Published Article
LAPSE:2020.1135
Bioink Temperature Influence on Shear Stress, Pressure and Velocity Using Computational Simulation
J. Carlos Gómez-Blanco, Enrique Mancha-Sánchez, Alfonso C. Marcos, Manuel Matamoros, Antonio Díaz-Parralejo, J. Blas Pagador
November 9, 2020
Bioinks are usually cell-laden hydrogels widely studied in bioprinting performing experimental tests to tune their rheological properties, thus increasing research time and development costs. Computational Fluids Dynamics (CFD) is a powerful tool that can minimize iterations and costs simulating the material behavior using parametric changes in rheological properties under testing. Additionally, most bioinks have specific functionalities and their properties might widely change with temperature. Therefore, commercial bioinks are an excellent way to standardize bioprinting process, but they are not analyzed in detail. Therefore, the objective of this work is to study how three temperatures of the Cellink Bioink influence shear stress pressure and velocity through computational simulation. A comparison of three conical nozzles (20, 22, and 25G) for each temperature has been performed. The results show that shear stress, pressure, and velocity vary in negligible ranges for all combinations. Although these ranges are small and define a good thermo-responsive bioink, they do not generate a filament on the air and make drops during extrusion. In conclusion, this bioink provides a very stable behavior with low shear stress, but other bioprinting parameters must be set up to get a stable filament width.
Keywords
bioprinting, bioprinting material, commercial bioink, computational simulation, Fluid Dynamics, level-set, temperature
Suggested Citation
Gómez-Blanco JC, Mancha-Sánchez E, Marcos AC, Matamoros M, Díaz-Parralejo A, Pagador JB. Bioink Temperature Influence on Shear Stress, Pressure and Velocity Using Computational Simulation. (2020). LAPSE:2020.1135
Author Affiliations
Gómez-Blanco JC: Jesús Usón Minimally Invasive Surgery Centre, 10002 Cáceres, Spain [ORCID]
Mancha-Sánchez E: Jesús Usón Minimally Invasive Surgery Centre, 10002 Cáceres, Spain
Marcos AC: Graphic Expression Department, Industrial Engineering School, Universidad de Extremadura, 06006 Badajoz, Spain
Matamoros M: Graphic Expression Department, Industrial Engineering School, Universidad de Extremadura, 06006 Badajoz, Spain
Díaz-Parralejo A: Mechanical, Energy and Materials Engineering Department, Industrial Engineering School, Universidad de Extremadura, 06006 Badajoz, Spain
Pagador JB: Jesús Usón Minimally Invasive Surgery Centre, 10002 Cáceres, Spain [ORCID]
Journal Name
Processes
Volume
8
Issue
7
Article Number
E865
Year
2020
Publication Date
2020-07-17
Published Version
ISSN
2227-9717
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Original Submission
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PII: pr8070865, Publication Type: Journal Article
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LAPSE:2020.1135
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doi:10.3390/pr8070865
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Nov 9, 2020
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CC BY 4.0
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Nov 9, 2020
 
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Calvin Tsay
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