Oozing: an accessible technique to create 3D-printed scaffolds suitable for tissue engineering
Author
Crespo-Santiago, Juan
Delgado, Luis M.
Madariaga, Rafa
Millan, Laia
Chico, Oriol
Oliver, Pau
Pérez Antoñanzas, Román
Otero-Viñas, Marta
Publication date
2024ISSN
2424-7723
Abstract
Tissue-engineered constructs require mimicking the extracellular matrix microenvironment of native tissue for better promoting cell growth. Commercial three-dimensional (3D) printers provide a versatile platform to fabricate tissue models, but they possess certain constraints regarding the reproduction of natural tissue structures due to the limited functionality of current slicing strategies and hardware. In this study, we present a new approach to 3D-printing polylactic acid (PLA) constructs with fibers in the range of microns by combining the oozing effect and algorithm-aided design (AAD) with a conventional fused deposition modeling printer. Three different oozing geometries were compared with two controls to explore their mechanical behavior and their cellular culture growth potential. Microscopic analysis revealed that oozing groups possessed higher porosity and statistically significantly thinner fibers than controls. Sodium hydroxide treatment reversibly increased the hydrophilicity of PLA without affecting the scaffolds’ mechanical properties in the compression tests. In addition, cell culture assays showed that oozing specimens exhibited a greater capacity of promoting SaOs-2 osteoblastic cell proliferation after 7 days in comparison with controls. We demonstrated that randomly distributed microfibered environments can be fabricated with an ordinary 3D printer utilizing the oozing effect and advanced AAD, resulting in improved biomimetic 3D constructs for tissue-engineering strategies.
Document Type
Article
Document version
Published version
Language
English
Subject (CDU)
61 - Medical sciences
Keywords
Supurant
Impressió 3D
Enginyeria de teixits
Cultius cel·lulars
Àcid polilàctic
Rezumando
Impresión 3D
Ingeniería de tejidos
Culturas celulares
Ácido polilactico
Oozing
3D printing
Tissue engineering
Cell cultures
Polylactic acid
Pages
18
Publisher
ACCScience Publishing
Is part of
International Journal of Bioprinting
Citation
Crespo-Santiago, Juan; Delgado, Luis M.; Madariaga, Rafa [et al.]. Oozing: an accessible technique to create 3D-printed scaffolds suitable for tissue engineering. International Journal of Bioprinting, 2024, p. 1-18. Disponible en: <https://www.accscience.com/journal/IJB/articles/online_first/1289>. Fecha de acceso: 8 abr. 2024. DOI: 10.36922/ijb.2337
This item appears in the following Collection(s)
- Ciències de la Salut [725]
Rights
© 2024 by the Author(s). This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution 4.0 International License ( https://creativecommons.org/licenses/by/4.0/ )
Except where otherwise noted, this item's license is described as https://creativecommons.org/licenses/by/4.0/