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  A light-fuelled nanoratchet shifts a coupled chemical equilibrium

Kathan, M., Crespi, S., Thiel, N. O., Stares, D. L., Morsa, D., de Boer, J., et al. (2022). A light-fuelled nanoratchet shifts a coupled chemical equilibrium. Nature Nanotechnology, 17(2), 159-165. doi:10.1038/s41565-021-01021-z.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0009-AFDA-D Version Permalink: https://hdl.handle.net/21.11116/0000-000C-8D2E-3
Genre: Journal Article

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s41565-021-01021-z.pdf (Publisher version), 6MB
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 Creators:
Kathan, Michael1, Author
Crespi, Stefano1, Author
Thiel, Niklas O1, Author
Stares, Daniel L2, Author
Morsa, Denis3, Author
de Boer, John1, Author
Pacella, Gianni4, Author
van den Enk, Tobias1, Author
Kobauri, Piermichele1, Author
Portale, Giuseppe4, Author
Schalley, Christoph A2, Author
Feringa, Ben L1, Author
Affiliations:
1Stratingh Institute for Chemistry, Center for Systems Chemistry and Zernike Institute for Advanced Materials, Faculty of Mathematics and Natural Sciences, University of Groningen, Groningen, the Netherlands, ou_persistent22              
2Institut für Chemie und Biochemie der Freien Universität Berlin, Berlin, Germany, ou_persistent22              
3Molecular Physics, Fritz Haber Institute, Max Planck Society, Berlin, DE, ou_634545              
4Macromolecular Chemistry and New Polymeric Materials and Zernike Institute for Advanced Materials, Faculty of Mathematics and Natural Sciences, University of Groningen, Groningen, the Netherlands, ou_persistent22              

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 Abstract: Biological molecular machines enable chemical transformations, assembly, replication and motility, but most distinctively drive chemical systems out of-equilibrium to sustain life. In such processes, nanometre-sized machines produce molecular energy carriers by driving endergonic equilibrium reactions. However, transforming the work performed by artificial nanomachines into chemical energy remains highly challenging. Here, we report a light-fuelled small-molecule ratchet capable of driving a coupled chemical equilibrium energetically uphill. By bridging two imine macrocycles with a molecular motor, the machine forms crossings and consequently adopts several distinct topologies by either a thermal (temporary bond-dissociation) or photochemical (unidirectional rotation) pathway. While the former will relax the machine towards the global energetic minimum, the latter increases the number of crossings in the system above the equilibrium value. Our approach provides a blueprint for coupling continuous mechanical motion performed by a molecular machine with a chemical transformation to reach an out-of-equilibrium state.

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Language(s): eng - English
 Dates: 2021-03-192021-09-292021-12-162022-02
 Publication Status: Issued
 Pages: 8
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1038/s41565-021-01021-z
 Degree: -

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Title: Nature Nanotechnology
  Other : Nat. Nanotechnol.
Source Genre: Journal
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Publ. Info: London : Nature Publishing Group
Pages: 8 Volume / Issue: 17 (2) Sequence Number: - Start / End Page: 159 - 165 Identifier: ISSN: 1748-3387
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000239770