Hydrogels pave the way for the future of soft robotics

The input embedding pattern shows the fiber extruder being added to the hydrogel. Credit: Biohybrid and Organic Robotics Group, Carnegie Mellon University

Researchers in Carnegie Mellon University’s College of Engineering have created an open-source, commercially available fiber extruder to benefit future research with hydrogels and soft robotics.

As their name suggests, hydrogels begin in liquid form as monomers. This viscous liquid, which can be made of synthetic or natural materials from polyester to sodium alginate, can be used as ink for 3D printing. The ink is first loaded into a syringe, then pumped through the needle as a thin filament …

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