3D-Printed Cell-Instructive Scaffolds Based on Chondrosia reniformis Collagen and Sr-Doped Calcium Phosphates for Bone Tissue Engineering
Year: 2025
Type: article
Abstract: Bone defects pose a global concern due to their high prevalence. Despite the significant advances in the development of novel therapies and sustainable biomaterial solutions, these still do not perfectly address the clinical needs, in particular, the paradigm shift of personalized treatments. In this sense, marine-origin materials allied to three-dimensional (3D) printing are arising as a feasible alternative to develop innovative personalized approaches, namely, bone tissue engineering (TE). In this study, novel 3D-printed scaffolds composed of collagen obtained from the maricultured marine sponge Chondrosia reniformis and calcium phosphates extracted from codfish ( Gadus morhua ) bones doped with strontium, and combined with alginate, were developed as a promising approach for bone regeneration. The 3D-printed scaffolds demonstrated suitable pore size and porosity and high interconnectivity, with adequate mechanical properties for bone TE. The in vitro assays conducted with a human osteosarcoma cell line (Saos-2 cells) cultured onto the 3D-printed scaffolds demonstrated a notable improvement in both cell viability and proliferation up to 14 days of culturing. This enhancement was particularly evident in the case of 3D-printed scaffolds containing Sr-doped calcium phosphates. Aligned with the principles of the blue economy and within a sustainable development approach, an innovative 3D-printed scaffold produced from sustainable marine-derived collagen and strontium-doped calcium phosphates with adequate mechanical properties, architecture, and encouraging in vitro performance was developed for bone tissue engineering scaffolding applications.
Institutions: 3B's Research Group, University of Minho
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,500
Awards: Advanced therapy medicinal products towards self-regeneration of musculoskeletal disorders in a patient-specific approach, Materiais biogénicos para impressão 3D combinando colagénio marinho e fosfatos de cálcio dopados para engenharia de tecidos do osso, G5771616292, ATLANTIDA - Platform for the monitoring of the North Atlantic ocean and tools for the sustainable exploitation of the marine resources, Extraction and purification of collagens and aggregating factors from marine sponges and echinoderms for the production of biomimetic hydrogels
OpenAlex ID: W4410130085