Article (Scientific journals)
Cell adhesion affects the properties of interstitial fluid flow: A study using multiscale poroelastic composite modeling
DEHGHANI, Hamidreza; Holzapfel, Gerhard; MITTELBRONN, Michel et al.
2024In Journal of the Mechanical Behavior of Biomedical Materials, 153
Peer Reviewed verified by ORBi
 

Files


Full Text
1-s2.0-S1751616124001188-main.pdf
Publisher postprint (3.39 MB)
Request a copy

All documents in ORBilu are protected by a user license.

Send to



Details



Keywords :
Brain waste clearance mechanics,; Microstructure-driven poroelastic composite; Brain tissue modeling; Brain tissue mechanical properties; Cell adhesion; Interstitial fluid flow
Abstract :
[en] In this study, we conduct a multiscale, multiphysics modeling of the brain gray matter as a poroelastic composite. We develop a customized representative volume element based on cytoarchitectural features that encompass important microscopic components of the tissue, namely the extracellular space, the capillaries, the pericapillary space, the interstitial fluid, cell–cell and cell-capillary junctions, and neuronal and glial cell bodies. Using asymptotic homogenization and direct numerical simulation, the effective properties at the tissue level are identified based on microscopic properties. To analyze the influence of various microscopic elements on the effective/macroscopic properties and tissue response, we perform sensitivity analyses on cell junction (cluster) stiffness, cell junction diameter (dimensions), and pericapillary space width. The results of this study suggest that changes in cell adhesion can greatly affect both mechanical and hydraulic (interstitial fluid flow and porosity) features of brain tissue, consistent with the effects of neurodegenerative diseases.
Disciplines :
Engineering, computing & technology: Multidisciplinary, general & others
Author, co-author :
DEHGHANI, Hamidreza ;  University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE)
Holzapfel, Gerhard
MITTELBRONN, Michel ;  University of Luxembourg > Luxembourg Centre for Systems Biomedicine (LCSB) > Neuropathology
ZILIAN, Andreas  ;  University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE)
External co-authors :
yes
Language :
English
Title :
Cell adhesion affects the properties of interstitial fluid flow: A study using multiscale poroelastic composite modeling
Publication date :
27 February 2024
Journal title :
Journal of the Mechanical Behavior of Biomedical Materials
ISSN :
1751-6161
eISSN :
1878-0180
Publisher :
Elsevier, Oxford, United Kingdom
Volume :
153
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
R-AGR-3440 - PRIDE17/12252781 DRIVEN_Common - ZILIAN Andreas
Funders :
FNR - Fonds National de la Recherche [LU]
Available on ORBilu :
since 26 September 2023

Statistics


Number of views
37 (2 by Unilu)
Number of downloads
0 (0 by Unilu)

Scopus citations®
 
1
Scopus citations®
without self-citations
0

Bibliography


Similar publications



Contact ORBilu