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  3D printed protein-based robotic structures actuated by molecular motor assemblies

Jia, H., Flommersfeld, J., Heymann, M., Vogel, S. K., Franquelim, H. G., Bruckner, D. B., et al. (2022). 3D printed protein-based robotic structures actuated by molecular motor assemblies. Nature Materials, 21(6), 703-709. doi:10.1038/s41563-022-01258-6.

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 Creators:
Jia, Haiyang1, Author              
Flommersfeld, J., Author
Heymann, M.1, Author              
Vogel, Sven K.1, Author              
Franquelim, H. G.1, Author              
Bruckner, D. B., Author
Eto, H.1, Author              
Broedersz, C. P., Author
Schwille, Petra1, Author              
Affiliations:
1Schwille, Petra / Cellular and Molecular Biophysics, Max Planck Institute of Biochemistry, Max Planck Society, ou_1565169              

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Free keywords: mechanics networks cell fabrication filaments driven Chemistry Materials Science Physics
 Abstract: Three-dimensional printed protein-based robotic structures are actuated by exoskeleton-like coats of molecular motor assemblies upon the spatially targeted release of chemical fuel, resulting in micrometre-scale shape-morphing activity. Upscaling motor protein activity to perform work in man-made devices has long been an ambitious goal in bionanotechnology. The use of hierarchical motor assemblies, as realized in sarcomeres, has so far been complicated by the challenges of arranging sufficiently high numbers of motor proteins with nanoscopic precision. Here, we describe an alternative approach based on actomyosin cortex-like force production, allowing low complexity motor arrangements in a contractile meshwork that can be coated onto soft objects and locally activated by ATP. The design is reminiscent of a motorized exoskeleton actuating protein-based robotic structures from the outside. It readily supports the connection and assembly of micro-three-dimensional printed modules into larger structures, thereby scaling up mechanical work. We provide an analytical model of force production in these systems and demonstrate the design flexibility by three-dimensional printed units performing complex mechanical tasks, such as microhands and microarms that can grasp and wave following light activation.

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Language(s): eng - English
 Dates: 2022-05-26
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: Other: WOS:000804154800020
DOI: 10.1038/s41563-022-01258-6
ISSN: 1476-1122
 Degree: -

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Title: Nature Materials
  Abbreviation : Nat. Mater.
Source Genre: Journal
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Publ. Info: London, UK : Nature Pub. Group
Pages: - Volume / Issue: 21 (6) Sequence Number: - Start / End Page: 703 - 709 Identifier: ISSN: 1476-1122
CoNE: https://pure.mpg.de/cone/journals/resource/111054835734000