3D printing technology could save animal testing

Scientists from Leipzig University Medicine have developed a 3-D silicon lattice on which human stem cells settle. Initial experiments have shown that the function of the cells improves significantly compared to 2-D cultures and that the new technology can help to reduce animal experiments. It could be shown that the cells colonize the 3-D lattice and form three-dimensional cell structures themselves.
Liver-like cells were better able to synthesise the proteins that are normally synthesised in the liver. The researchers were also able to demonstrate that bone differentiation is better in bone cells than in 2-D cultures.
A functional type was initially developed that is expected to go into series production in 2025.
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nl/pm zm online, Jul 23, 2019 (german)
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