Sound-based assembly of three-dimensional cellularized and acellularized constructs

• DOI: 10.1016/j.mtbio.2023.100775
• Publication Date: 2023-08-19T08:10:32Z
• Authors: Riccardo Tognato; Romedi Parolini; Shahrbanoo Jahangir; Junxuan Ma; Sammy Florczak; R. Geoff Richards; Riccardo Levato; Mauro Alini; Tiziano Serra
• Keywords: Sound-based assembly; Medicine (General); R5-920; QH301-705.5; Full Length Article; Biofabrication; Acoustic; Biology (General)

AbstractHerein we show an accessible technique based on Faraday waves that assist the rapid assembly osteoinductive β-TCP particles as well as human osteoblast pre-assembled in spheroids. The hydrodynamic forces originating at ’seabed’ of the assembly chamber can be used to tightly aggregate inorganic and biological entities at packing densities that resemble those of native tissues. Additionally, following a layer-by-layer assembly procedure, centimeter scaled osteoinductive three-dimensional and cellularised constructs have been fabricated. We showed that the intimate connection between biological building blocks is essential in engineering living system able of localized mineral deposition. Our results demonstrate, for the first time, the possibility to obtain three-dimensional cellularised and acellularised anisotropic constructs using Faraday waves.