Tangentially Active Polymers in Cylindrical Channels
Fuente:
arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| Soggetti: | |
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| _version_ | 1866913535733268480 |
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| author | Martín-Roca, José Locatelli, Emanuele Bianco, Valentino Malgaretti, Paolo Valeriani, Chantal |
| author_facet | Martín-Roca, José Locatelli, Emanuele Bianco, Valentino Malgaretti, Paolo Valeriani, Chantal |
| contents | We present an analytical and computational study characterizing the structural and dynamical properties of an active filament confined in cylindrical channels. We first outline the effects of the interplay between confinement and polar self-propulsion on the conformation of the chains. We observe that the scaling of the polymer size in the channel, quantified by the end-to-end distance, shows different anomalous behaviours at different confinement and activity conditions. Interestingly, we show that the universal relation, describing the ratio between the end-to-end distance of passive polymer chains in cylindrical channels and in bulk is broken by activity. Finally, we show that the long-time diffusion coefficient under confinement can be rationalised by an analytical model, that takes into account the presence of the channel and the elongated nature of the polymer. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_02192 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Tangentially Active Polymers in Cylindrical Channels Martín-Roca, José Locatelli, Emanuele Bianco, Valentino Malgaretti, Paolo Valeriani, Chantal Soft Condensed Matter We present an analytical and computational study characterizing the structural and dynamical properties of an active filament confined in cylindrical channels. We first outline the effects of the interplay between confinement and polar self-propulsion on the conformation of the chains. We observe that the scaling of the polymer size in the channel, quantified by the end-to-end distance, shows different anomalous behaviours at different confinement and activity conditions. Interestingly, we show that the universal relation, describing the ratio between the end-to-end distance of passive polymer chains in cylindrical channels and in bulk is broken by activity. Finally, we show that the long-time diffusion coefficient under confinement can be rationalised by an analytical model, that takes into account the presence of the channel and the elongated nature of the polymer. |
| title | Tangentially Active Polymers in Cylindrical Channels |
| topic | Soft Condensed Matter |
| url | https://arxiv.org/abs/2405.02192 |