Adhesion of carrier particles to the luminal surface of endothelium under hemodynamic flow conditions is critical for successful vascular drug delivery. Endothelial cells (ECs) line the inner surface of blood vessels. The effect of mechanical behavior of this compliant surface on the adhesion of blood-borne particles is unknown. In this contribution, we use a phase-plane method, first developed by Hammer and Lauffenburger (1987, “A Dynamical Model for Receptor-Mediated Cell Adhesion to Surfaces,” Biophys. J., 52(3), p. 475), to analyze the stability of specific adhesion of a spherical particle to a compliant interface layer. The model constructs a phase diagram and predicts the state of particle adhesion, subjected to an incident simple shear flow, in terms of interfacial elasticity, shear rate, binding affinity of cell adhesive molecules, and their surface density. The main conclusion is that the local deformation of the flexible interface inhibits the stable adhesion of the particle. In comparison with adhesion to a rigid substrate, a greater ligand density is required to establish a stable adhesion between a particle and a compliant interface.
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January 2019
Research-Article
On Stability of Specific Adhesion of Particles to Membranes in Simple Shear Flow
Mohammad Hossein Moshaei,
Mohammad Hossein Moshaei
Department of Mechanical Engineering,
Ohio University,
Athens, OH 45701
Ohio University,
Athens, OH 45701
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Mohammad Tehrani,
Mohammad Tehrani
Department of Mechanical Engineering,
Ohio University,
Athens, OH 45701
Ohio University,
Athens, OH 45701
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Alireza Sarvestani
Alireza Sarvestani
Department of Mechanical Engineering,
Ohio University,
Athens, OH 45701;
Ohio University,
Athens, OH 45701;
Search for other works by this author on:
Mohammad Hossein Moshaei
Department of Mechanical Engineering,
Ohio University,
Athens, OH 45701
Ohio University,
Athens, OH 45701
Mohammad Tehrani
Department of Mechanical Engineering,
Ohio University,
Athens, OH 45701
Ohio University,
Athens, OH 45701
Alireza Sarvestani
Department of Mechanical Engineering,
Ohio University,
Athens, OH 45701;
Ohio University,
Athens, OH 45701;
1Corresponding author.
Manuscript received November 23, 2017; final manuscript received July 25, 2018; published online October 17, 2018. Assoc. Editor: Sarah Kieweg.
J Biomech Eng. Jan 2019, 141(1): 011005 (10 pages)
Published Online: October 17, 2018
Article history
Received:
November 23, 2017
Revised:
July 25, 2018
Citation
Moshaei, M. H., Tehrani, M., and Sarvestani, A. (October 17, 2018). "On Stability of Specific Adhesion of Particles to Membranes in Simple Shear Flow." ASME. J Biomech Eng. January 2019; 141(1): 011005. https://doi.org/10.1115/1.4041046
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