Journal article
Hydrodynamic clustering of human sperm in viscoelastic fluids
- Abstract:
- We have numerically investigated sperm clustering behaviours, modelling cells as superpositions of regularised flow singularities, coarse-grained from experimentally obtained digital microscopy of human sperm, both in watery medium and a highly viscous– weakly elastic, methylcellulose medium. We find that the cell yaw and cell pulling dynamics inhibit clustering in low viscosity media. In contrast clustering is readily visible in simulations modelling sperm within a methylcellulose medium, in line with previous observations that bovine sperm clustering is much more prominent in a rheological polyacrylamide medium. Furthermore, the fine-scale details of sperm flagellar movement substantially impact large-scale collective behaviours, further motivating the need for the digital microscopy and characterization of sperm to understand their dynamics.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 2.3MB, Terms of use)
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- Publisher copy:
- 10.1038/s41598-018-33584-8
Authors
+ Japan Society for the Promotion of Science
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- Funding agency for:
- Ishimoto, K
- Grant:
- Leading Initiative for Excellent Young Researchers
+ Ministry of Education, Culture, Sports, Science and Technology
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- Funding agency for:
- Ishimoto, K
- Grant:
- Leading Initiative for Excellent Young Researchers
+ Kyoto University Hakubi Project and Supporting Program
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- Funding agency for:
- Ishimoto, K
- Grant:
- Leading Initiative for Excellent Young Researchers
- Publisher:
- Springer Nature
- Journal:
- Scientific Reports More from this journal
- Volume:
- 8
- Article number:
- 15600
- Publication date:
- 2018-10-22
- Acceptance date:
- 2018-10-02
- DOI:
- EISSN:
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2045-2322
- Pubs id:
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pubs:923190
- UUID:
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uuid:a2646800-b7ff-4ab0-b511-e9417e56395d
- Local pid:
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pubs:923190
- Source identifiers:
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923190
- Deposit date:
-
2018-10-02
Terms of use
- Copyright holder:
- Ishimoto et al
- Copyright date:
- 2018
- Notes:
- © The Author(s) 2018. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Te images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
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