Solar‐Driven Soft Robots

Abstract Stimuli‐responsive materials have been lately employed in soft robotics enabling new classes of robots that can emulate biological systems. The untethered operation of soft materials with high power light, magnetic field, and electric field has been previously demonstrated. While electric a...

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Main Authors: Seyed M. Mirvakili, Arny Leroy, Douglas Sim, Evelyn N. Wang
Format: Article
Language:English
Published: Wiley 2021-04-01
Series:Advanced Science
Subjects:
Online Access:https://doi.org/10.1002/advs.202004235
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author Seyed M. Mirvakili
Arny Leroy
Douglas Sim
Evelyn N. Wang
author_facet Seyed M. Mirvakili
Arny Leroy
Douglas Sim
Evelyn N. Wang
author_sort Seyed M. Mirvakili
collection DOAJ
description Abstract Stimuli‐responsive materials have been lately employed in soft robotics enabling new classes of robots that can emulate biological systems. The untethered operation of soft materials with high power light, magnetic field, and electric field has been previously demonstrated. While electric and magnetic fields can be stimulants for untethered actuation, their rapid decay as a function of distance limits their efficacy for long‐range operations. In contrast, light—in the form of sunlight or collimated from an artificial source (e.g., laser, Xenon lamps)—does not decay rapidly, making it suitable for long‐range excitation of untethered soft robots. In this work, an approach to harnessing sunlight for the untethered operation of soft robots is presented. By employing a selective solar absorber film and a low‐boiling point (34 °C) fluid, light‐operated soft robotic grippers are demonstrated, grasping and lifting objects almost 25 times the mass of the fluid in a controllable fashion. The method addresses one of the salient challenges in the field of untethered soft robotics. It precludes the use of bulky peripheral components (e.g., compressors, valves, or pressurized gas tank) and enables the untethered long‐range operation of soft robots.
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spelling doaj.art-2d4184907258440e9eb1ea4834dc76732022-12-21T19:49:11ZengWileyAdvanced Science2198-38442021-04-0188n/an/a10.1002/advs.202004235Solar‐Driven Soft RobotsSeyed M. Mirvakili0Arny Leroy1Douglas Sim2Evelyn N. Wang3Koch Institute Massachusetts Institute of Technology Cambridge MA 02139 USAMechanical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USAElectrical and Computer Engineering Department University of British Columbia Vancouver BC V6T 1Z2 CanadaMechanical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USAAbstract Stimuli‐responsive materials have been lately employed in soft robotics enabling new classes of robots that can emulate biological systems. The untethered operation of soft materials with high power light, magnetic field, and electric field has been previously demonstrated. While electric and magnetic fields can be stimulants for untethered actuation, their rapid decay as a function of distance limits their efficacy for long‐range operations. In contrast, light—in the form of sunlight or collimated from an artificial source (e.g., laser, Xenon lamps)—does not decay rapidly, making it suitable for long‐range excitation of untethered soft robots. In this work, an approach to harnessing sunlight for the untethered operation of soft robots is presented. By employing a selective solar absorber film and a low‐boiling point (34 °C) fluid, light‐operated soft robotic grippers are demonstrated, grasping and lifting objects almost 25 times the mass of the fluid in a controllable fashion. The method addresses one of the salient challenges in the field of untethered soft robotics. It precludes the use of bulky peripheral components (e.g., compressors, valves, or pressurized gas tank) and enables the untethered long‐range operation of soft robots.https://doi.org/10.1002/advs.202004235actuatorsartificial musclesphase changesoft robotssolar energyuntethered
spellingShingle Seyed M. Mirvakili
Arny Leroy
Douglas Sim
Evelyn N. Wang
Solar‐Driven Soft Robots
Advanced Science
actuators
artificial muscles
phase change
soft robots
solar energy
untethered
title Solar‐Driven Soft Robots
title_full Solar‐Driven Soft Robots
title_fullStr Solar‐Driven Soft Robots
title_full_unstemmed Solar‐Driven Soft Robots
title_short Solar‐Driven Soft Robots
title_sort solar driven soft robots
topic actuators
artificial muscles
phase change
soft robots
solar energy
untethered
url https://doi.org/10.1002/advs.202004235
work_keys_str_mv AT seyedmmirvakili solardrivensoftrobots
AT arnyleroy solardrivensoftrobots
AT douglassim solardrivensoftrobots
AT evelynnwang solardrivensoftrobots