Enhanced directionality of active processes in a viscoelastic bath
Active fluctuations are known to play a significant role in the intracellular transport of passive objects. However, the effect of viscoelasticity of the environment in shaping such processes is relatively less understood. Here, with a minimal experiment using a driven colloid in a viscoelastic bath...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/acfb31 |
| _version_ | 1797670982572310528 |
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| author | Biswajit Das Shuvojit Paul Sreekanth K. Manikandan Ayan Banerjee |
| author_facet | Biswajit Das Shuvojit Paul Sreekanth K. Manikandan Ayan Banerjee |
| author_sort | Biswajit Das |
| collection | DOAJ |
| description | Active fluctuations are known to play a significant role in the intracellular transport of passive objects. However, the effect of viscoelasticity of the environment in shaping such processes is relatively less understood. Here, with a minimal experiment using a driven colloid in a viscoelastic bath, we show that viscoelasticity significantly increases the mean injected power to the passive object ( ${\sim}50\%$ compared to a viscous medium), for the same strength of the external driving. Additionally, we observe a notable reduction in negative work fluctuations across a wide range of driving amplitudes. These findings collectively suggest an enhanced directionality in driven processes within a viscoelastic bath, which we attribute to the emergence of interactions between the colloid and the viscoelastic medium. |
| first_indexed | 2024-03-11T21:08:43Z |
| format | Article |
| id | doaj.art-4fe337b5c3a0486982d9e337b032914f |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-11T21:08:43Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-4fe337b5c3a0486982d9e337b032914f2023-09-29T07:40:58ZengIOP PublishingNew Journal of Physics1367-26302023-01-0125909305110.1088/1367-2630/acfb31Enhanced directionality of active processes in a viscoelastic bathBiswajit Das0https://orcid.org/0000-0002-5426-2730Shuvojit Paul1https://orcid.org/0000-0002-0004-2273Sreekanth K. Manikandan2https://orcid.org/0000-0002-0475-2766Ayan Banerjee3https://orcid.org/0000-0003-2443-9125Department of Physical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur Campus , Mohanpur, West Bengal 741246, IndiaDepartment of Physical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur Campus , Mohanpur, West Bengal 741246, IndiaDepartment of Chemistry, Stanford University , Stanford, CA 94305, United States of AmericaDepartment of Physical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur Campus , Mohanpur, West Bengal 741246, IndiaActive fluctuations are known to play a significant role in the intracellular transport of passive objects. However, the effect of viscoelasticity of the environment in shaping such processes is relatively less understood. Here, with a minimal experiment using a driven colloid in a viscoelastic bath, we show that viscoelasticity significantly increases the mean injected power to the passive object ( ${\sim}50\%$ compared to a viscous medium), for the same strength of the external driving. Additionally, we observe a notable reduction in negative work fluctuations across a wide range of driving amplitudes. These findings collectively suggest an enhanced directionality in driven processes within a viscoelastic bath, which we attribute to the emergence of interactions between the colloid and the viscoelastic medium.https://doi.org/10.1088/1367-2630/acfb31stochastic thermodynamicsviscoelasticityactive processactive matteroptical tweezersnon equilibrium statistical mechanics |
| spellingShingle | Biswajit Das Shuvojit Paul Sreekanth K. Manikandan Ayan Banerjee Enhanced directionality of active processes in a viscoelastic bath New Journal of Physics stochastic thermodynamics viscoelasticity active process active matter optical tweezers non equilibrium statistical mechanics |
| title | Enhanced directionality of active processes in a viscoelastic bath |
| title_full | Enhanced directionality of active processes in a viscoelastic bath |
| title_fullStr | Enhanced directionality of active processes in a viscoelastic bath |
| title_full_unstemmed | Enhanced directionality of active processes in a viscoelastic bath |
| title_short | Enhanced directionality of active processes in a viscoelastic bath |
| title_sort | enhanced directionality of active processes in a viscoelastic bath |
| topic | stochastic thermodynamics viscoelasticity active process active matter optical tweezers non equilibrium statistical mechanics |
| url | https://doi.org/10.1088/1367-2630/acfb31 |
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