Scientists demonstrate 3D 'bio-printing' inside organoids growing in hydrogels

Scientists from the NIHR Great Ormond Street Hospital Biomedical Research Centre (a collaboration between GOSH and UCL), London, and University of Padova, Italy, have shown for the first time how 3D printing can be achieved inside "mini-organs" growing in hydrogels—controlling their shape, activity, and even forcing tissue to grow into "molds."