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Insights from an information thermodynamics analysis of a synthetic molecular motor.
Amano, Shuntaro; Esposito, Massimiliano; Kreidt, Elisabeth; Leigh, David A; Penocchio, Emanuele; Roberts, Benjamin M W.
Afiliación
  • Amano S; Department of Chemistry, University of Manchester, Manchester, UK.
  • Esposito M; Department of Physics and Materials Science, University of Luxembourg, Luxembourg City, Luxembourg.
  • Kreidt E; Department of Chemistry, University of Manchester, Manchester, UK.
  • Leigh DA; Department of Chemistry, University of Manchester, Manchester, UK. david.leigh@manchester.ac.uk.
  • Penocchio E; Department of Physics and Materials Science, University of Luxembourg, Luxembourg City, Luxembourg. emanuele.penocchio@uni.lu.
  • Roberts BMW; Department of Chemistry, University of Manchester, Manchester, UK.
Nat Chem ; 14(5): 530-537, 2022 05.
Article en En | MEDLINE | ID: mdl-35301472
Information is physical, a realization that has transformed the physics of measurement and communication. However, the flow between information, energy and mechanics in chemical systems remains largely unexplored. Here we analyse a minimalist autonomous chemically driven molecular motor in terms of information thermodynamics, a framework that quantitatively relates information to other thermodynamic parameters. The treatment reveals how directional motion is generated by free energy transfer from chemical to mechanical (conformational and/or co-conformational) processes by 'energy flow' and 'information flow'. It provides a thermodynamic level of understanding of molecular motors that is general, complements previous analyses based on kinetics and has practical implications for machine design. In line with kinetic analysis, we find that power strokes do not affect the directionality of chemically driven machines. However, we find that power strokes can modulate motor velocity, the efficiency of free energy transfer and the number of fuel molecules consumed per cycle. This may help explain the role of such (co-)conformational changes in biomachines and illustrates the interplay between energy and information in chemical systems.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Cinética Idioma: En Revista: Nat Chem Asunto de la revista: QUIMICA Año: 2022 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
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XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Cinética Idioma: En Revista: Nat Chem Asunto de la revista: QUIMICA Año: 2022 Tipo del documento: Article Pais de publicación: Reino Unido