Advancements in 3D Printing: Biodegradable, Color-Changing Conductive Material and Room Temperature Metal Printing

Researchers at Empa have developed a 3D printable material that is biodegradable, conductive, and changes color based on temperature. The material is made from a mixture of hydroxypropyl cellulose (HPC) and carbon nanotubes, which allows it to exhibit structural coloring. By adding cellulose nanofibers, the material can be 3D printed without affecting its properties. Potential applications include strain sensors, displays, and biomedical diagnostics. The researchers aim to further explore the possibilities of this cellulose-based material.