Most human tissues possess vascular networks supplying oxygen and nutrients. Engineering of functional tissue and organ models or equivalents often require the integration of artificial vascular networks. Several approaches, such as organs on chips and three-dimensional (3D) bioprinting, have been pursued to obtain vasculature and vascularized tissues

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Déclaration de conflit d'intérêts

The authors declare the following financial interests/personal relationships, which may be considered as potential competing interests: Roman K. Truckenmueller reports a relationship with 300MICRONS GmbH that includes: board membership and equity or stocks. Stefan Giselbrecht reports a relationship with 300MICRONS GmbH that includes: board membership and equity or stocks. Roman K. Truckenmueller has the patent #Moulded bodies, method for producing said bodies and use thereof, EP20050757982, licensed to 300MICRONS GmbH. Stefan Giselbrecht has the patent #Moulded bodies, method for producing said bodies and use thereof, EP20050757982, licensed to 300MICRONS GmbH. Roman K. Truckenmueller and Stefan Giselbrecht are (co-)founders, shareholders and managing directors of 300MICRONS GmbH. Roman K. Truckenmueller and Stefan Giselbrecht are (co-)inventors of the patent ‘Moulded bodies, method for producing said bodies and use thereof, EP20050757982’; holder of the patent is Karlsruhe Institute of Technology. Roman K. Truckenmueller and Stefan Giselbrecht are members of the Strategic Advisory Board of ReGEN Biomedical B.V. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.