Researchers at the University of Wollongong and the Australian Research Council Centre of Excellence for Electromaterials Science (ACES) have developed the BioPen, a tool that allows surgeons to repair injured bones and joints by laying down customized implants during surgery with high precision and ease. This handheld 3D printer works by “drawing” a biomaterial scaffolding that encases stem cells. The composite biomaterial includes a cell-viable hydrogel, such as alginate, surrounded by an outer protective layer.
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