Cell Behavior and Complex Mechanical Properties of 3D Printed Cell-Laden Alginate-Gelatin Macroporous Mesostructures

Murenu N, Faber J, Ahmadi Soufivand A, Buss M, Schaefer N, Budday S (2025)

Publication Language: English

Publication Type: Journal article

Publication year: 2025

Journal

Macromolecular Bioscience Wiley-VCH Verlag

Article Number: e00204

DOI: 10.1002/mabi.202500204

Abstract

Bioprinting involves additive manufacturing of materials containing living cells, known as bioinks, which are formulated from cytocompatible hydrogel precursors. The bioink's characteristics before, during, and after crosslinking are critical for its printability, structural resolution, shape fidelity, and cell viability. The mechanical properties of printed constructs can be strongly influenced by their macroporous mesostructure, including pore size, filament diameter, and layer height, and are crucial for the intended applications in tissue engineering or regenerative medicine. It is known that the mechanical properties of hydrogels influence cell performance, but in turn, cells can also alter the mechanical properties of bioprinted constructs, which remain poorly understood. To explore these interdependencies, we selected an alginate-gelatin hydrogel (ALG-GEL), due to its well-known biocompatibility, combined with U87 cells and bioprinted three different multilayer macroporous mesostructures with varying porosity and filament diameter. We investigate how different macroporous mesostructures affect cells, how cells, in turn, influence mechanical properties, and whether the stability and mechanical properties of bioprinted macroporous mesostructures change over time. Our findings show that the bioprinted constructs are stable over the course of 14 days and highlight that cells can significantly influence their mechanical properties. This has important implications for biofabrication and tissue engineering applications.

Authors with CRIS profile

Jessica Faber Sonderforschungsbereich/Transregio 225/2 Von den Grundlagen der Biofabrikation zu funktionalen Gewebemodellen Anahita Ahmadi Soufivand Lehrstuhl für Kontinuumsmechanik (Schwerpunkt Biomechanik) Silvia Budday Lehrstuhl für Kontinuumsmechanik (Schwerpunkt Biomechanik)

Involved external institutions

Universitätsklinikum Würzburg DE Germany (DE)

How to cite

APA:

Murenu, N., Faber, J., Ahmadi Soufivand, A., Buss, M., Schaefer, N., & Budday, S. (2025). Cell Behavior and Complex Mechanical Properties of 3D Printed Cell-Laden Alginate-Gelatin Macroporous Mesostructures. Macromolecular Bioscience. https://doi.org/10.1002/mabi.202500204

MLA:

Murenu, Nicoletta, et al. "Cell Behavior and Complex Mechanical Properties of 3D Printed Cell-Laden Alginate-Gelatin Macroporous Mesostructures." Macromolecular Bioscience (2025).

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