Ultrafast small-scale soft electromagnetic robots.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
09 08 2022
09 08 2022
Historique:
received:
15
03
2022
accepted:
18
07
2022
entrez:
9
8
2022
pubmed:
10
8
2022
medline:
12
8
2022
Statut:
epublish
Résumé
High-speed locomotion is an essential survival strategy for animals, allowing populating harsh and unpredictable environments. Bio-inspired soft robots equally benefit from versatile and ultrafast motion but require appropriate driving mechanisms and device designs. Here, we present a class of small-scale soft electromagnetic robots made of curved elastomeric bilayers, driven by Lorentz forces acting on embedded printed liquid metal channels carrying alternating currents with driving voltages of several volts in a static magnetic field. Their dynamic resonant performance is investigated experimentally and theoretically. These robust and versatile robots can walk, run, swim, jump, steer and transport cargo. Their tethered versions reach ultra-high running speeds of 70 BL/s (body lengths per second) on 3D-corrugated substrates and 35 BL/s on arbitrary planar substrates while their maximum swimming speed is 4.8 BL/s in water. Moreover, prototype untethered versions run and swim at a maximum speed of 2.1 BL/s and 1.8 BL/s, respectively.
Identifiants
pubmed: 35945209
doi: 10.1038/s41467-022-32123-4
pii: 10.1038/s41467-022-32123-4
pmc: PMC9363453
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
4456Informations de copyright
© 2022. The Author(s).
Références
J Am Coll Surg. 2010 Jan;210(1):60-5.e1-2
pubmed: 20123333
J Exp Biol. 2016 Mar;219(Pt 5):676-85
pubmed: 26787481
Adv Mater. 2021 May;33(19):e2003558
pubmed: 33338296
Science. 2012 Aug 17;337(6096):828-32
pubmed: 22904008
Science. 2015 Jan 9;347(6218):154-9
pubmed: 25574018
Soft Robot. 2019 Feb;6(1):133-141
pubmed: 30407127
Science. 2018 Jan 5;359(6371):61-65
pubmed: 29302008
Adv Mater. 2020 May;32(20):e1906766
pubmed: 32053227
Science. 2006 Jan 13;311(5758):208-12
pubmed: 16357225
Sci Adv. 2020 May 08;6(19):eaaz6912
pubmed: 32494714
Small. 2009 Feb;5(2):170-5
pubmed: 19115348
Proc Natl Acad Sci U S A. 2020 Mar 10;117(10):5125-5133
pubmed: 32094173
Nature. 2019 Nov;575(7782):324-329
pubmed: 31686057
Adv Sci (Weinh). 2020 Dec 04;8(2):2002948
pubmed: 33511017
Sci Robot. 2019 Sep 25;4(34):
pubmed: 33137778
Sci Adv. 2019 Jun 21;5(6):eaaw2844
pubmed: 31245538
Nature. 2019 Jun;570(7762):491-495
pubmed: 31243384
Lab Chip. 2016 May 21;16(10):1812-20
pubmed: 27025537
J Am Coll Surg. 2015 Apr;220(4):550-8
pubmed: 25728140
Nature. 2018 Feb 1;554(7690):81-85
pubmed: 29364873
Sci Adv. 2020 Jun 26;6(26):eabc0251
pubmed: 32637626
Nat Mater. 2015 Oct;14(10):1065-71
pubmed: 26213897
Sci Robot. 2019 Jul 31;4(32):
pubmed: 33137774
Science. 2014 Feb 21;343(6173):868-72
pubmed: 24558156
Nature. 2018 Jun;558(7709):274-279
pubmed: 29899476