Polyvinyl alcohol (PVA) hydrogels are gaining increasing attention as versatile materials for biomedical applications. In vascular engineering, they are particularly promising for the fabrication of anatomical models that mimic the mechanical properties of native tissue. However, their high water content results in dynamic behaviour over time, which must be well understood for reproducible applications.
In her recent publication, Jenny Schäfer and colleagues from the Cattaneo lab at the BMT Institute present a comprehensive analysis of the time-dependent changes in geometrical, mechanical, and optical properties of PVA hydrogels over periods ranging from hours to weeks. Their findings provide important insights into the stability and performance of these materials in vascular model applications.
By improving the characterization of tissue-like hydrogels, this work supports the development of robust and physiologically relevant in vitro test systems. Such platforms are essential for the evaluation of vascular devices while contributing to the Replacement and Reduction of animal experiments in line with the 3R principles.
📄 Publication: Investigation of Time-Dependent Changes in Geometrical, Mechanical and Optical Properties of PVA Hydrogel for Vascular Model Applications
📘 Journal of the Mechanical Behavior of Biomedical Materials
🔗 https://www.sciencedirect.com/science/article/pii/S1751616126000871
