Temporal rheological evolution of SiO₂-based inks and its impact on scaffolds’ fidelity for direct ink writing

Published in Materials

Go to the profile of Karen Pérez
Karen Pérez
postdoc, UNAM
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The study investigates the impact of aging on SiO₂-based inks used in Direct Ink Writing (DIW) for additive manufacturing. Aging significantly enhances the ink's structural strength, transitioning it from a liquid-like to a more solid-like state. This research, a detailed experimental study, characterizes the inks over 21 days, focusing on changes in viscosity and viscoelastic moduli (G′ and G″). Key findings include increased viscosity at low shear rates and improved complex modulus (G*), which enhance scaffold stability and structural fidelity. Optimal printability conditions and extrusion rates were identified, demonstrating the benefits of prolonged aging.

https://doi.org/10.1007/s40964-025-01433-6

Go to the profile of Karen Pérez
Karen Pérez
postdoc, UNAM

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