3D printed deformable sensors

Zhijie Zhu; Hyun Soo Park; Michael C. McAlpine

doi:10.1126/sciadv.aba5575

3D printed deformable sensors

Zhijie Zhu, Hyun Soo Park, Michael C. McAlpine

Research output: Contribution to journal › Article › peer-review

86 Scopus citations

Abstract

The ability to directly print compliant biomedical devices on live human organs could benefit patient monitoring and wound treatment, which requires the 3D printer to adapt to the various deformations of the biological surface. We developed an in situ 3D printing system that estimates the motion and deformation of the target surface to adapt the toolpath in real time. With this printing system, a hydrogel-based sensor was printed on a porcine lung under respiration-induced deformation. The sensor was compliant to the tissue surface and provided continuous spatial mapping of deformation via electrical impedance tomography. This adaptive 3D printing approach may enhance robot-assisted medical treatments with additive manufacturing capabilities, enabling autonomous and direct printing of wearable electronics and biological materials on and inside the human body.

Original language	English (US)
Article number	eaba5575
Journal	Science Advances
Volume	6
Issue number	25
DOIs	https://doi.org/10.1126/sciadv.aba5575
State	Published - Jun 2020

Bibliographical note

Funding Information:
We thank W. Upchurch from the University of Minnesota (UMN) Visible Heart Lab (VHL) for assistance in acquiring porcine lung tissue, and D. Giles for assistance with the mechanical and rheological characterizations carried out in the UMN Polymer Characterization Facility. Research reported in this publication was supported by Medtronic plc (for sensor development) and the National Institute of Biomedical Imaging and Bioengineering of the NIH under award number DP2EB020537. The content is solely the responsibility of the authors and does not necessarily represent the official views of Medtronic plc nor the NIH. Z.Z. acknowledges support from the graduate school of the University of Minnesota (2019-2020 Doctoral Dissertation Fellowship).

Publisher Copyright:
© 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

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abstract = "The ability to directly print compliant biomedical devices on live human organs could benefit patient monitoring and wound treatment, which requires the 3D printer to adapt to the various deformations of the biological surface. We developed an in situ 3D printing system that estimates the motion and deformation of the target surface to adapt the toolpath in real time. With this printing system, a hydrogel-based sensor was printed on a porcine lung under respiration-induced deformation. The sensor was compliant to the tissue surface and provided continuous spatial mapping of deformation via electrical impedance tomography. This adaptive 3D printing approach may enhance robot-assisted medical treatments with additive manufacturing capabilities, enabling autonomous and direct printing of wearable electronics and biological materials on and inside the human body.",

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note = "Funding Information: We thank W. Upchurch from the University of Minnesota (UMN) Visible Heart Lab (VHL) for assistance in acquiring porcine lung tissue, and D. Giles for assistance with the mechanical and rheological characterizations carried out in the UMN Polymer Characterization Facility. Research reported in this publication was supported by Medtronic plc (for sensor development) and the National Institute of Biomedical Imaging and Bioengineering of the NIH under award number DP2EB020537. The content is solely the responsibility of the authors and does not necessarily represent the official views of Medtronic plc nor the NIH. Z.Z. acknowledges support from the graduate school of the University of Minnesota (2019-2020 Doctoral Dissertation Fellowship). Publisher Copyright: {\textcopyright} 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).",

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3D printed deformable sensors

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