Printability evaluation of UV-curable aqueous laponite/urethane-based PEG inks
- Author
- Aysu Arslan, Patrice Roose, Annemie Houben (UGent) , Heidi Declercq (UGent) , Sandra Van Vlierberghe (UGent) and Peter Dubruel (UGent)
- Organization
- Project
- Abstract
- In the present research, we evaluated the printability of inks that were formulated using an acrylate-endcapped urethane-based poly(ethylene glycol) hydrogel precursor (AUP) and a silicate-based nanoclay Laponite. Flow characterization of the AUP/ Laponite hydrogel inks revealed both yielding and shear thinning behavior, strongly dependent on the concentrations of the AUP and Laponite. In order to have a better insight into printability, the flow behavior along the cross section inside the printing needle was evaluated from the experimental shear flow data. The maximum stress values estimated inside the needle were applied to investigate the structural recovery of the inks using oscillatory rheology. Close analysis of the shear modulus recovery of the AUP/Laponite inks revealed a biexponential behavior, indicating a two-step recovery mechanism. The recovery mechanism is composed of fast and slow recovery steps and it appears that the shape fidelity after ink deposition is primarily controlled by the fast recovery contribution. Optimal printability was achieved for the ink formulation with the shortest characteristic time as well as a high modulus (>500 Pa) compared to the inks which could not be printed into well-defined structures. In the final part, cell interactivity of the three-dimensional (3D)-printed scaffolds was evaluated via live/dead cell assays.
- Keywords
- GLYCOL) DIACRYLATE HYDROGELS, POLY(ETHYLENE GLYCOL), YIELD-STRESS, SILICATE NANOCOMPOSITES, MECHANICAL-PROPERTIES, TOUGH HYDROGELS, 3D, LAPONITE, DESIGN, COMPOSITE, hydrogels, rheology, 3D printing, printability, structure recovery, tissue engineering
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Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-01GY781X00H7B5MK7BB3C6B662
- MLA
- Arslan, Aysu, et al. “Printability Evaluation of UV-Curable Aqueous Laponite/Urethane-Based PEG Inks.” ACS APPLIED POLYMER MATERIALS, vol. 5, no. 4, 2023, pp. 2345–58, doi:10.1021/acsapm.2c02013.
- APA
- Arslan, A., Roose, P., Houben, A., Declercq, H., Van Vlierberghe, S., & Dubruel, P. (2023). Printability evaluation of UV-curable aqueous laponite/urethane-based PEG inks. ACS APPLIED POLYMER MATERIALS, 5(4), 2345–2358. https://doi.org/10.1021/acsapm.2c02013
- Chicago author-date
- Arslan, Aysu, Patrice Roose, Annemie Houben, Heidi Declercq, Sandra Van Vlierberghe, and Peter Dubruel. 2023. “Printability Evaluation of UV-Curable Aqueous Laponite/Urethane-Based PEG Inks.” ACS APPLIED POLYMER MATERIALS 5 (4): 2345–58. https://doi.org/10.1021/acsapm.2c02013.
- Chicago author-date (all authors)
- Arslan, Aysu, Patrice Roose, Annemie Houben, Heidi Declercq, Sandra Van Vlierberghe, and Peter Dubruel. 2023. “Printability Evaluation of UV-Curable Aqueous Laponite/Urethane-Based PEG Inks.” ACS APPLIED POLYMER MATERIALS 5 (4): 2345–2358. doi:10.1021/acsapm.2c02013.
- Vancouver
- 1.Arslan A, Roose P, Houben A, Declercq H, Van Vlierberghe S, Dubruel P. Printability evaluation of UV-curable aqueous laponite/urethane-based PEG inks. ACS APPLIED POLYMER MATERIALS. 2023;5(4):2345–58.
- IEEE
- [1]A. Arslan, P. Roose, A. Houben, H. Declercq, S. Van Vlierberghe, and P. Dubruel, “Printability evaluation of UV-curable aqueous laponite/urethane-based PEG inks,” ACS APPLIED POLYMER MATERIALS, vol. 5, no. 4, pp. 2345–2358, 2023.
@article{01GY781X00H7B5MK7BB3C6B662,
abstract = {{In the present research, we evaluated the printability of inks that were formulated using an acrylate-endcapped urethane-based poly(ethylene glycol) hydrogel precursor (AUP) and a silicate-based nanoclay Laponite. Flow characterization of the AUP/ Laponite hydrogel inks revealed both yielding and shear thinning behavior, strongly dependent on the concentrations of the AUP and Laponite. In order to have a better insight into printability, the flow behavior along the cross section inside the printing needle was evaluated from the experimental shear flow data. The maximum stress values estimated inside the needle were applied to investigate the structural recovery of the inks using oscillatory rheology. Close analysis of the shear modulus recovery of the AUP/Laponite inks revealed a biexponential behavior, indicating a two-step recovery mechanism. The recovery mechanism is composed of fast and slow recovery steps and it appears that the shape fidelity after ink deposition is primarily controlled by the fast recovery contribution. Optimal printability was achieved for the ink formulation with the shortest characteristic time as well as a high modulus (>500 Pa) compared to the inks which could not be printed into well-defined structures. In the final part, cell interactivity of the three-dimensional (3D)-printed scaffolds was evaluated via live/dead cell assays.}},
author = {{Arslan, Aysu and Roose, Patrice and Houben, Annemie and Declercq, Heidi and Van Vlierberghe, Sandra and Dubruel, Peter}},
issn = {{2637-6105}},
journal = {{ACS APPLIED POLYMER MATERIALS}},
keywords = {{GLYCOL) DIACRYLATE HYDROGELS,POLY(ETHYLENE GLYCOL),YIELD-STRESS,SILICATE NANOCOMPOSITES,MECHANICAL-PROPERTIES,TOUGH HYDROGELS,3D,LAPONITE,DESIGN,COMPOSITE,hydrogels,rheology,3D printing,printability,structure recovery,tissue engineering}},
language = {{eng}},
number = {{4}},
pages = {{2345--2358}},
title = {{Printability evaluation of UV-curable aqueous laponite/urethane-based PEG inks}},
url = {{http://doi.org/10.1021/acsapm.2c02013}},
volume = {{5}},
year = {{2023}},
}
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