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  Structured light enables biomimetic swimming and versatile locomotion of photoresponsive soft microrobots

Palagi, S., Mark, A. G., Reigh, S. Y., Melde, K., Qiu, T., Zeng, H., et al. (2016). Structured light enables biomimetic swimming and versatile locomotion of photoresponsive soft microrobots. Nature Materials, 15(6), 647-653. doi:10.1038/NMAT4569.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000B-19CE-2 Version Permalink: https://hdl.handle.net/21.11116/0000-000E-4B9E-D
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 Creators:
Palagi, Stefano, Author
Mark, Andrew G., Author
Reigh, Shang Yik, Author
Melde, Kai, Author
Qiu, Tian, Author
Zeng, Hao, Author
Parmeggiani, Camilla, Author
Martella, Daniele, Author
Sanchez-Castillo, Alberto, Author
Kapernaum, Nadia, Author
Giesselmann, Frank, Author
Wiersma, Diederik S., Author
Lauga, Eric, Author
Fischer, Peer1, Author                 
Affiliations:
1Max Planck Institute for Medical Research, Max Planck Society, ou_1125545              

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 Abstract: Microorganisms move in challenging environments by periodic changes in body shape. In contrast, current artificial microrobots cannot actively deform, exhibiting at best passive bending under external fields. Here, by taking advantage of the wireless, scalable and spatiotemporally selective capabilities that light allows, we show that soft microrobots consisting of photoactive liquid-crystal elastomers can be driven by structured monochromatic light to perform sophisticated biomimetic motions. We realize continuum yet selectively addressable artificial microswimmers that generate travelling-wave motions to self-propel without external forces or torques, as well as microrobots capable of versatile locomotion behaviours on demand. Both theoretical predictions and experimental results confirm that multiple gaits, mimicking either symplectic or antiplectic metachrony of ciliate protozoa, can be achieved with single microswimmers. The principle of using structured light can be extended to other applications that require microscale actuation with sophisticated spatiotemporal coordination for advanced microrobotic technologies.

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Language(s): eng - English
 Dates: 2015-11-172016-01-182016-02-152016-06
 Publication Status: Issued
 Pages: 8
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1038/NMAT4569
BibTex Citekey: 2016palagi2
 Degree: -

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Title: Nature Materials
  Abbreviation : Nat. Mater.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: London, UK : Nature Pub. Group
Pages: - Volume / Issue: 15 (6) Sequence Number: - Start / End Page: 647 - 653 Identifier: ISSN: 1476-1122
CoNE: https://pure.mpg.de/cone/journals/resource/111054835734000