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Astakhov AM, Petrovskii VS, Frolkina MA, Markina AA, Muratov AD, Valov AF, Avetisov VA. Spontaneous Vibrations and Stochastic Resonance of Short Oligomeric Springs. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 14:41. [PMID: 38202496 PMCID: PMC10780788 DOI: 10.3390/nano14010041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/15/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024]
Abstract
There is growing interest in molecular structures that exhibit dynamics similar to bistable mechanical systems. These structures have the potential to be used as two-state operating units for various functional purposes. Particularly intriguing are the bistable systems that display spontaneous vibrations and stochastic resonance. Previously, via molecular dynamics simulations, it was discovered that short pyridine-furan springs in water, when subjected to stretching with power loads, exhibit the bistable dynamics of a Duffing oscillator. In this study, we extend these simulations to include short pyridine-pyrrole and pyridine-furan springs in a hydrophobic solvent. Our findings demonstrate that these systems also display the bistable dynamics, accompanied by spontaneous vibrations and stochastic resonance activated by thermal noise.
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Affiliation(s)
- Alexey M. Astakhov
- Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia
- Design Center for Molecular Machines, 119991 Moscow, Russia
| | - Vladislav S. Petrovskii
- Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia
- Design Center for Molecular Machines, 119991 Moscow, Russia
| | - Maria A. Frolkina
- Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia
- Design Center for Molecular Machines, 119991 Moscow, Russia
| | - Anastasia A. Markina
- Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia
- Design Center for Molecular Machines, 119991 Moscow, Russia
| | - Alexander D. Muratov
- Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia
- Design Center for Molecular Machines, 119991 Moscow, Russia
| | - Alexander F. Valov
- Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia
- Design Center for Molecular Machines, 119991 Moscow, Russia
| | - Vladik A. Avetisov
- Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia
- Design Center for Molecular Machines, 119991 Moscow, Russia
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