Bio-chemo-electro-mechanical modelling of the rapid movement of Mimosa pudica
A remarkable feature of Mimosa pudica is its ability to deform in response to certain external stimuli. Here, a two-dimensional transient bio-chemo-electro-mechanical model of the rapid movement of the main pulvinus of Mimosa pudica is developed. Based on the laws of mass and momentum conservation,...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Online Access: | https://hdl.handle.net/10356/155272 |
| _version_ | 1826112061683269632 |
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| author | Wang, Yifeng Li, Hua |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Wang, Yifeng Li, Hua |
| author_sort | Wang, Yifeng |
| collection | NTU |
| description | A remarkable feature of Mimosa pudica is its ability to deform in response to certain external stimuli. Here, a two-dimensional transient bio-chemo-electro-mechanical model of the rapid movement of the main pulvinus of Mimosa pudica is developed. Based on the laws of mass and momentum conservation, poroelasticity, and representative volume elements, a novel fluid pressure equation is proposed to characterize the cell elasticity. Experiments were conducted to measure the time and amplitude of the rapid movement. After examinations with the published experiments, it is confirmed that the model can predict well the ionic concentrations, petiole bending angle, and membrane potential. The simulation analysis of the biophysical properties provides insights to biomechanics: the hydrostatic pressure in the lowest extensor decreases from 0.35 to 0.05 MPa at t = 0.00 to 3.00 s; fluid pressure increases from 0.00 to 0.11 MPa at t = 0.00 to 0.14 s; and the peak bending angle increases from 57.0° to 70.9° when the reflection coefficient is assigned as 0.10 to 0.20 in the model. The results highlight the biochemical actuation mechanism of the Mimosa pudica movement, and they confirm the importance of ionic and water transports for causing changes in osmotic and hydrostatic pressures. |
| first_indexed | 2024-10-01T03:01:07Z |
| format | Journal Article |
| id | ntu-10356/155272 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:01:07Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1552722022-03-07T08:45:08Z Bio-chemo-electro-mechanical modelling of the rapid movement of Mimosa pudica Wang, Yifeng Li, Hua School of Mechanical and Aerospace Engineering Engineering::Mechanical engineering Actuation Biomechanics A remarkable feature of Mimosa pudica is its ability to deform in response to certain external stimuli. Here, a two-dimensional transient bio-chemo-electro-mechanical model of the rapid movement of the main pulvinus of Mimosa pudica is developed. Based on the laws of mass and momentum conservation, poroelasticity, and representative volume elements, a novel fluid pressure equation is proposed to characterize the cell elasticity. Experiments were conducted to measure the time and amplitude of the rapid movement. After examinations with the published experiments, it is confirmed that the model can predict well the ionic concentrations, petiole bending angle, and membrane potential. The simulation analysis of the biophysical properties provides insights to biomechanics: the hydrostatic pressure in the lowest extensor decreases from 0.35 to 0.05 MPa at t = 0.00 to 3.00 s; fluid pressure increases from 0.00 to 0.11 MPa at t = 0.00 to 0.14 s; and the peak bending angle increases from 57.0° to 70.9° when the reflection coefficient is assigned as 0.10 to 0.20 in the model. The results highlight the biochemical actuation mechanism of the Mimosa pudica movement, and they confirm the importance of ionic and water transports for causing changes in osmotic and hydrostatic pressures. Nanyang Technological University The authors gratefully acknowledge the financial support from Nanyang Technological University through NTU Research Scholarship. The authors thank Mr. Neo De Sheng for the help on data collation. 2022-03-07T08:45:08Z 2022-03-07T08:45:08Z 2020 Journal Article Wang, Y. & Li, H. (2020). Bio-chemo-electro-mechanical modelling of the rapid movement of Mimosa pudica. Bioelectrochemistry, 134, 107533-. https://dx.doi.org/10.1016/j.bioelechem.2020.107533 1567-5394 https://hdl.handle.net/10356/155272 10.1016/j.bioelechem.2020.107533 32380450 2-s2.0-85084116867 134 107533 en Bioelectrochemistry © 2020 Elsevier B.V. All rights reserved. |
| spellingShingle | Engineering::Mechanical engineering Actuation Biomechanics Wang, Yifeng Li, Hua Bio-chemo-electro-mechanical modelling of the rapid movement of Mimosa pudica |
| title | Bio-chemo-electro-mechanical modelling of the rapid movement of Mimosa pudica |
| title_full | Bio-chemo-electro-mechanical modelling of the rapid movement of Mimosa pudica |
| title_fullStr | Bio-chemo-electro-mechanical modelling of the rapid movement of Mimosa pudica |
| title_full_unstemmed | Bio-chemo-electro-mechanical modelling of the rapid movement of Mimosa pudica |
| title_short | Bio-chemo-electro-mechanical modelling of the rapid movement of Mimosa pudica |
| title_sort | bio chemo electro mechanical modelling of the rapid movement of mimosa pudica |
| topic | Engineering::Mechanical engineering Actuation Biomechanics |
| url | https://hdl.handle.net/10356/155272 |
| work_keys_str_mv | AT wangyifeng biochemoelectromechanicalmodellingoftherapidmovementofmimosapudica AT lihua biochemoelectromechanicalmodellingoftherapidmovementofmimosapudica |