Bioprinted skin sample

Bioprinted human skin sample. 3D printing human tissue could help keep astronauts healthy all the way to Mars. An ESA project has produced its first bioprinted skin and bone samples. This sample was printed with human skin cells using human blood plasma as a nutrient-rich ‘bio-ink’. Plant- and algae-sourced methylcellullose and alginate have been added to increase the viscosity of this bio-ink, making it suitable for use in low gravity conditions.