التفاصيل البيبلوغرافية
| العنوان: |
Untethered soft robotic matter with passive control of shape morphing and propulsion |
| المؤلفون: |
Kotikian, Arda, McMahan, Connor, Davidson, Emily C., Muhammad, Jalilah M., Weeks, Robert D., Daraio, Chiara, Lewis, Jennifer A. |
| المصدر: |
Science Robotics, 4(33), Art. No. eaax7044, (2019-08-21) |
| بيانات النشر: |
American Association for the Advancement of Science |
| سنة النشر: |
2019 |
| المجموعة: |
Caltech Authors (California Institute of Technology) |
| الوصف: |
There is growing interest in creating untethered soft robotic matter that can repeatedly shape-morph and self-propel in response to external stimuli. Toward this goal, we printed soft robotic matter composed of liquid crystal elastomer (LCE) bilayers with orthogonal director alignment and different nematic-to-isotropic transition temperatures (T_(NI)) to form active hinges that interconnect polymeric tiles. When heated above their respective actuation temperatures, the printed LCE hinges exhibit a large, reversible bending response. Their actuation response is programmed by varying their chemistry and printed architecture. Through an integrated design and additive manufacturing approach, we created passively controlled, untethered soft robotic matter that adopts task-specific configurations on demand, including a self-twisting origami polyhedron that exhibits three stable configurations and a "rollbot" that assembles into a pentagonal prism and self-rolls in programmed responses to thermal stimuli. ; © 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. This is an article distributed under the terms of the Science Journals Default License. Received April 15, 2019. Accepted July 30, 2019. We thank Y. Liu for experimental assistance and S. Uzel, W. Boley, K. Korner, P. Celli, S. Injeti, and H. Zhou for useful discussions. We thank L. K. Sanders for technical assistance with imaging and videography. Funding: The work was supported by the Army Research Office (ARO) Grant W911NF-17-1-0147 (to C.D. and C.M.), the Harvard MRSEC (NSF DMR-1420570 to J.A.L. and A.K.), and the ARO MURI Grant W911NF-17-1-0351 (to J.A.L. and E.C.D.). We also acknowledge support from the NASA Space Technology Research Fellowship to C.M. and the National Science Foundation Graduate Research Fellowship to A.K. This work made use of the Shared Experimental Facilities supported in part by the Harvard MRSEC Program under award number ... |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
unknown |
| العلاقة: |
https://doi.org/10.1126/scirobotics.aax7044Test; oai:authors.library.caltech.edu:p84ar-6aw29; eprintid:97624; resolverid:CaltechAUTHORS:20190802-142724805 |
| DOI: |
10.1126/scirobotics.aax7044 |
| الإتاحة: |
https://doi.org/10.1126/scirobotics.aax7044Test |
| حقوق: |
info:eu-repo/semantics/openAccess ; Other |
| رقم الانضمام: |
edsbas.AD525F5C |
| قاعدة البيانات: |
BASE |
