Issue 33, 2024

Comment on “Dynamics and rheology of vesicles under confined Poiseuille flow” by Z. Gou, H. Zhang, A. Nait-Ouhra, M. Abbasi, A. Farutin and C. Misbah, Soft Matter, 2023, 19, 9101

Abstract

In a recent paper, [Gou et al., Soft Matter, 2023, 19, 9101–9114] studied numerically the viscosity of a confined suspension of vesicles flowing in a channel as a function of vesicle concentration. In order to discuss the genericity of the observed behaviour, namely a nearly constant effective viscosity at low concentrations, we complement their study by a comparison with the few existing ones in the literature. In particular, we highlight that they fail to reproduce well established results for blood viscosity in microcirculation, thereby suggesting that the conclusions regarding the optimization of cell transport and oxygenation may not apply. We conclude with a quick discussion on potential improvements regarding numerical modeling, as long as physiological relevance is sought.

Graphical abstract: Comment on “Dynamics and rheology of vesicles under confined Poiseuille flow” by Z. Gou, H. Zhang, A. Nait-Ouhra, M. Abbasi, A. Farutin and C. Misbah, Soft Matter, 2023, 19, 9101

Associated articles

Article information

Article type
Comment
Submitted
11 Dec 2023
Accepted
04 Jul 2024
First published
31 Jul 2024
This article is Open Access
Creative Commons BY-NC license

Soft Matter, 2024,20, 6677-6680

Comment on “Dynamics and rheology of vesicles under confined Poiseuille flow” by Z. Gou, H. Zhang, A. Nait-Ouhra, M. Abbasi, A. Farutin and C. Misbah, Soft Matter, 2023, 19, 9101

G. Coupier and T. Podgorski, Soft Matter, 2024, 20, 6677 DOI: 10.1039/D3SM01679J

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