Microscopic solar panels could help shape 3D-printed biological tissue
Bioprinting uses living cells and molecular signals to produce biological tissues and even whole organs, building them layer by layer in the lab. To keep the bioink, or blend of cells and materials that power this printing, correctly aligned to grow a target tissue, researchers use electricity. However, this typically requires bulky electronic interfaces and invasive wiring.
In a pioneering collaboration, Western Engineering has partnered with Salthaven Wildlife Rehabilitation and Education Centre to produce 3D-printed raptor puppets for feeding baby birds. The initiative aims to reduce human contact during feeding sessions, promoting the birds' natural connection to their own species. Four new puppets—depicting a great horned owl, merlin falcon, red-tailed hawk, and American kestrel—enable caregivers to offer food through the puppet's beak while keeping their hands concealed.
This approach helps rehabilitated birds associate food with their species, boosting their chances of survival in the wild. The project builds on a successful partnership between Western Engineering and Salthaven, which previously led to the development of specialized leg splints for injured waterfowl. Under the guidance of Western Engineering professor Ryan Willing, students designed and printed the puppet heads, which are now being manufactured using the donated 3D printer at Salthaven.
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