Wirelessly Powered 3D Printed Hierarchical Biohybrid Robots with Multiscale Mechanical Properties

Hiroyuki Tetsuka; Lorenzo Pirrami; Ting WangDanilo DemarchiSu Ryon Shin

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Wirelessly Powered 3D Printed Hierarchical Biohybrid Robots with Multiscale Mechanical Properties

机译：Wirelessly Powered 3D Printed Hierarchical Biohybrid Robots with Multiscale Mechanical Properties

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The integration of flexible and stretchable electronics into biohybrid softrobotics can spur the development of new approaches for fabricating biohybridsoft machines, thus enabling a wide variety of innovative applications.Inspired by flexible and stretchable wireless-based bioelectronic devices,untethered biohybrid soft robots are developed that can execute swimmingmotions, which are remotely controllable by the wireless transmissionof electrical power into a cell simulator. To this end, wirelessly-powered,stretchable, and lightweight cell stimulators are designed to be integratedinto muscle bodies without impeding the robots’ underwater swimmingabilities. The cell stimulators function by generating controlled monophasicpulses of up to ≈9 V in biological environments. By differentiating inducedpluripotent stem cell-derived cardiomyocytes directly on the cell stimulatorsusing an accordion-inspired, three-dimensional (3D) printing construct, thenative myofiber architecture are replicated with comparable robustness andenhanced contractibility. Wirelessly modulated electrical frequencies enablesthe control of speed and direction of the biohybrid soft robots. A maximumlocomotion speed of ≈580 μm s~(?1) is achieved in robots possessing a largebody size by adjusting the pacing frequency. This innovative approach willprovide a platform for building untethered and biohybrid systems for variousbiomedical applications.

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来源
《Advanced functional materials》 |2022年第31期|2202674.1-2202674.13|共13页
作者
Hiroyuki Tetsuka; Lorenzo Pirrami; Ting WangDanilo DemarchiSu Ryon Shin;
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作者单位

Division of Engineering in MedicineDepartment of MedicineBrigham and Women’s HospitalHarvard Medical School65 Lansdowne Street, Cambridge, Massachusetts 02139, USA,Future Mobility Research DepartmentToyota Research Institute of North AmericaToyota Motor N;

iPrint InstituteSchool of Engineering and Architecture of FribourgHES-SO University of Applied Sciences and Arts Western Switzerland1700 Fribourg, Switzerland;

Division of Engineering in MedicineDepartment of MedicineBrigham and Women’s HospitalHarvard Medical School65 Lansdowne Street, Cambridge, Massachusetts 02139, USADepartment of Electronics and TelecommunicationsPolitecnico di Torino10129 Turin, Italy;

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正文语种英语
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3D printing; biohybrid soft robots; wireless powering;

Wirelessly Powered 3D Printed Hierarchical Biohybrid Robots with Multiscale Mechanical Properties

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