3D Printed Functional and Biological Materials
on Moving Freeform Surfaces
We reported an adaptive 3D printing method for autonomous manufacturing of multifunctional devices on moving freeform surfaces, which combines direct ink writing with closed-loop feedback and computer-vision-based control techniques.
Motion Tracking (6DoF)
Printing on a Moving Model Hand
Monitor Camera View
Tracking Camera View
Wirelessly powered devices and wireless moisture sensors were fabricated on human hands, via 3D printing a novel functional ink that is highly conductive, room-temperature processable and flexible.
Printing of Wireless-Powered Device
Wireless Moisture Sensor
The adaptive 3D printing method also enabled autonomous deposition of cell-laden hydrogels onto desired locations of live mice*, creating a model for future studies of wound-healing diseases (e.g., Recessive dystrophic epidermolysis bullosa).
3D Scan of Wound Bed
In situ Printing of Cell-Laden Hydrogel
Bioluminescence of Cells
*All animal studies were approved by the Institutional Animal Care and Use Committee (IACUC) at the University of Minnesota.