Biomolecular motors convert energy into directed motion and operate away from thermal equilibrium. The development of dynamic chemical systems that exploit dissipative (non-equilibrium) processes is a challenge in supramolecular chemistry and a premise for the realization of artificial nanoscale motors. Here, we report the relative unidirectional transit of a nonsymmetric molecular axle through a macrocycle powered solely by light. The molecular machine rectifies Brownian fluctuations by energy and information ratchet mechanisms and can repeat its working cycle under photostationary conditions. The system epitomizes the conceptual and practical elements forming the basis of autonomous light-powered directed motion with a minimalist molecular design.
Light-powered autonomous and directional molecular motion of a dissipative self-assembling system
Ragazzon Giulio;Silvi Serena;
2015-01-01
Abstract
Biomolecular motors convert energy into directed motion and operate away from thermal equilibrium. The development of dynamic chemical systems that exploit dissipative (non-equilibrium) processes is a challenge in supramolecular chemistry and a premise for the realization of artificial nanoscale motors. Here, we report the relative unidirectional transit of a nonsymmetric molecular axle through a macrocycle powered solely by light. The molecular machine rectifies Brownian fluctuations by energy and information ratchet mechanisms and can repeat its working cycle under photostationary conditions. The system epitomizes the conceptual and practical elements forming the basis of autonomous light-powered directed motion with a minimalist molecular design.File | Dimensione | Formato | |
---|---|---|---|
nnano.2014.260-s1.pdf
Accesso chiuso
Descrizione: supplementary Information
Tipologia:
Altro materiale allegato
Licenza:
Copyright Editore
Dimensione
3.26 MB
Formato
Adobe PDF
|
3.26 MB | Adobe PDF | Visualizza/Apri Richiedi una copia |
nnano.2014.260.pdf
Accesso chiuso
Tipologia:
Documento in Versione Editoriale
Licenza:
Copyright Editore
Dimensione
413.39 kB
Formato
Adobe PDF
|
413.39 kB | Adobe PDF | Visualizza/Apri Richiedi una copia |
2938542_nnano.2014.260-PostPrint.pdf
accesso aperto
Descrizione: Post Print VQR3
Tipologia:
Bozza finale post-referaggio (post-print)
Licenza:
Digital Rights Management non definito
Dimensione
965.46 kB
Formato
Adobe PDF
|
965.46 kB | Adobe PDF | Visualizza/Apri |
2938542_nnano.2014.260-s1-PostPrint.pdf
accesso aperto
Descrizione: Post Print VQR3
Tipologia:
Bozza finale post-referaggio (post-print)
Licenza:
Digital Rights Management non definito
Dimensione
3.24 MB
Formato
Adobe PDF
|
3.24 MB | Adobe PDF | Visualizza/Apri |
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.