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- Publisher Website: 10.1073/pnas.0509011103
- Scopus: eid_2-s2.0-31944433515
- PMID: 16432207
- WOS: WOS:000235094300006
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Article: Autonomous artificial nanomotor powered by sunlight
Title | Autonomous artificial nanomotor powered by sunlight |
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Authors | |
Keywords | Molecular machine Nanoscience Photochemistry Rotaxane Supramolecular chemistry |
Issue Date | 2006 |
Citation | Proceedings of the National Academy of Sciences of the United States of America, 2006, v. 103, n. 5, p. 1178-1183 How to Cite? |
Abstract | Light excitation powers the reversible shuttling movement of the ring component of a rotaxane between two stations located at a 1.3-nm distance on its dumbbell-shaped component. The photoinduced shuttling movement, which occurs in solution, is based on a "four-stroke" synchronized sequence of electronic and nuclear processes. At room temperature the deactivation time of the high-energy charge-transfer state obtained by light excitation is ≈10 μ, and the time period required for the ring-displacement process is on the order of 100 μs. The rotaxane behaves as an autonomous linear motor and operates with a quantum efficiency up to ≈12%. The investigated system is a unique example of an artificial linear nanomotor because it gathers together the following features: (i) it is powered by visible light (e.g., sunlight); (iii) it exhibits autonomous behavior, like motor proteins; (iii) it does not generate waste products; (iv) its operation can rely only on intramolecular processes, allowing in principle operation at the single-molecule level; (v) it can be driven at a frequency of 1 kHz; (vi) it works in mild environmental conditions (i.e., fluid solution at ambient temperature); and (vii) it is stable for at least 103 cycles. © 2006 by The National Academy of Sciences of the USA. |
Persistent Identifier | http://hdl.handle.net/10722/332652 |
ISSN | 2021 Impact Factor: 12.779 2020 SCImago Journal Rankings: 5.011 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Balzani, Vincenzo | - |
dc.contributor.author | Clemente-León, Miguel | - |
dc.contributor.author | Credi, Alberto | - |
dc.contributor.author | Ferrer, Belén | - |
dc.contributor.author | Venturi, Margherita | - |
dc.contributor.author | Flood, Amar H. | - |
dc.contributor.author | Stoddart, J. Fraser | - |
dc.date.accessioned | 2023-10-06T05:13:14Z | - |
dc.date.available | 2023-10-06T05:13:14Z | - |
dc.date.issued | 2006 | - |
dc.identifier.citation | Proceedings of the National Academy of Sciences of the United States of America, 2006, v. 103, n. 5, p. 1178-1183 | - |
dc.identifier.issn | 0027-8424 | - |
dc.identifier.uri | http://hdl.handle.net/10722/332652 | - |
dc.description.abstract | Light excitation powers the reversible shuttling movement of the ring component of a rotaxane between two stations located at a 1.3-nm distance on its dumbbell-shaped component. The photoinduced shuttling movement, which occurs in solution, is based on a "four-stroke" synchronized sequence of electronic and nuclear processes. At room temperature the deactivation time of the high-energy charge-transfer state obtained by light excitation is ≈10 μ, and the time period required for the ring-displacement process is on the order of 100 μs. The rotaxane behaves as an autonomous linear motor and operates with a quantum efficiency up to ≈12%. The investigated system is a unique example of an artificial linear nanomotor because it gathers together the following features: (i) it is powered by visible light (e.g., sunlight); (iii) it exhibits autonomous behavior, like motor proteins; (iii) it does not generate waste products; (iv) its operation can rely only on intramolecular processes, allowing in principle operation at the single-molecule level; (v) it can be driven at a frequency of 1 kHz; (vi) it works in mild environmental conditions (i.e., fluid solution at ambient temperature); and (vii) it is stable for at least 103 cycles. © 2006 by The National Academy of Sciences of the USA. | - |
dc.language | eng | - |
dc.relation.ispartof | Proceedings of the National Academy of Sciences of the United States of America | - |
dc.subject | Molecular machine | - |
dc.subject | Nanoscience | - |
dc.subject | Photochemistry | - |
dc.subject | Rotaxane | - |
dc.subject | Supramolecular chemistry | - |
dc.title | Autonomous artificial nanomotor powered by sunlight | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1073/pnas.0509011103 | - |
dc.identifier.pmid | 16432207 | - |
dc.identifier.scopus | eid_2-s2.0-31944433515 | - |
dc.identifier.volume | 103 | - |
dc.identifier.issue | 5 | - |
dc.identifier.spage | 1178 | - |
dc.identifier.epage | 1183 | - |
dc.identifier.isi | WOS:000235094300006 | - |