Biorheology - Volume 27, issue 3-4 - Journals

Biorheology - Volume 27, issue 3-4

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Biorheology is an international interdisciplinary journal that publishes research on the deformation and flow properties of biological systems or materials. It is the aim of the editors and publishers of Biorheology to bring together contributions from those working in various fields of biorheological research from all over the world. A diverse editorial board with broad international representation provides guidance and expertise in wide-ranging applications of rheological methods to biological systems and materials.

The aim of biorheological research is to determine and characterize the dynamics of physiological processes at all levels of organization. Manuscripts should report original theoretical and/or experimental research promoting the scientific and technological advances in a broad field that ranges from the rheology of macromolecules and macromolecular arrays to cell, tissue and organ rheology. In all these areas, the interrelationships of rheological properties of the systems or materials investigated and their structural and functional aspects are stressed.

The scope of papers solicited by Biorheology extends to systems at different levels of organization that have never been studied before, or, if studied previously, have either never been analyzed in terms of their rheological properties or have not been studied from the point of view of the rheological matching between their structural and functional properties. This biorheological approach applies in particular to molecular studies where changes of physical properties and conformation are investigated without reference to how the process actually takes place, how the forces generated are matched to the properties of the structures and environment concerned, proper time scales, or what structures or strength of structures are required.

Biorheology invites papers in which such 'molecular biorheological' aspects, whether in animal or plant systems, are examined and discussed. While we emphasize the biorheology of physiological function in organs and systems, the biorheology of disease is of equal interest. Biorheological analyses of pathological processes and their clinical implications are encouraged, including basic clinical research on hemodynamics and hemorheology.

In keeping with the rapidly developing fields of mechanobiology and regenerative medicine, Biorheology aims to include studies of the rheological aspects of these fields by focusing on the dynamics of mechanical stress formation and the response of biological materials at the molecular and cellular level resulting from fluid-solid interactions. With increasing focus on new applications of nanotechnology to biological systems, rheological studies of the behavior of biological materials in therapeutic or diagnostic medical devices operating at the micro and nano scales are most welcome.

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Software Survey Section

Article Type: Editorial

DOI: 10.3233/BIR-1990-273-442

Citation: Biorheology, vol. 27, no. 3-4, pp. I-III, 1990

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Preface and Editorial

Authors: Copley, A.L. | Stoltz, J.F.

Article Type: Editorial

DOI: 10.3233/BIR-1990-273-401

Citation: Biorheology, vol. 27, no. 3-4, pp. 255-257, 1990

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Report of the 7th International Congress of Biorheology

Authors: Stoltz, Jean-François

Article Type: Meeting Report

DOI: 10.3233/BIR-1990-273-402

Citation: Biorheology, vol. 27, no. 3-4, pp. 259-263, 1990

Price: EUR 27.50

Welcome Address

Authors: Stoltz, J.F.

Article Type: Other

DOI: 10.3233/BIR-1990-273-403

Citation: Biorheology, vol. 27, no. 3-4, pp. 265-268, 1990

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Introduction

Authors: stoltz, J.F.

Article Type: Introduction

DOI: 10.3233/BIR-1990-273-404

Citation: Biorheology, vol. 27, no. 3-4, pp. 269-270, 1990

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Poiseuille Gold Medal Award Ceremony

Authors: Silberberg, A.

Article Type: Other

DOI: 10.3233/BIR-1990-273-405

Citation: Biorheology, vol. 27, no. 3-4, pp. 271-272, 1990

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Presentation of the Jean-Léonard-Marie Poiseuille Gold Medal Award to Richard Skalak

Authors: Copley, A.L.

Article Type: Other

DOI: 10.3233/BIR-1990-273-406

Citation: Biorheology, vol. 27, no. 3-4, pp. 273-275, 1990

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Poiseuille Medal Lecture — Capillary Flow: Past, Present, and Future

Authors: Skalak, Richard

Article Type: Research Article

DOI: 10.3233/BIR-1990-273-407

Citation: Biorheology, vol. 27, no. 3-4, pp. 277-293, 1990

Price: EUR 27.50

On mucociliary transport

Authors: Silberberg, A.

Article Type: Research Article

Abstract: The periodically changing flow pattern in the mucus layer which lies between the ciliary tips and the transported load is discussed and analyzed. The resulting energy dissipation per cilium is estimated, as is the energy dissipated per cilium in the periciliary fluid. The rate of supply of energy to each cilium by far exceeds these two loss rates. It is shown why the elastic character of mucus is important for good momentum transfer from cilium to load and for good load carrying properties. Fast flow requirements upon secretion of mucus, on the other hand, make it desirable that elasticity and …viscosity be low as possible. A compromise is needed and the rheological character of mucus is matched to satisfy these opposing demands. Show more

Keywords: Mucociliary transport, Ciliary beat, Energy dissipation, Load carrying capacity, Mucus viscoelasticity

DOI: 10.3233/BIR-1990-273-408

Citation: Biorheology, vol. 27, no. 3-4, pp. 295-307, 1990

Price: EUR 27.50

Rheological aspects of red blood cell aggregation

Authors: Skalak, Richard | Zhu, Cheng

Article Type: Research Article

Abstract: The rheological aspects of red blood cell aggregation include molecular phenomena, cell viscoelasticity, and bulk flow rheology. At the molecular level, rates at which bonds are formed and broken, the chemical energy liberation from bond formation, the elasticity of the cross-bridges and lateral mobility of cross-linking molecules must all be considered for a complete description of bond formation and distribution. Lateral migration of binding molecules occurs due to diffusion in the surface of the membrane but may also be influenced by the stresses in the membrane during separation of adhering cells. In red blood cell disaggregation, fluorescent probes have shown …concentration of ligands in the region of contact close to the line of separation. The chemical potential decrement that occurs when a bond is formed provides the energy source that may deform red blood cell sin the process of aggregation. The degree of aggregation and the extent of cell deformation depends on the viscoelastic properties of the cell as well as the dynamics of bond formation and repulsive potential of surface charges present, which is governed by an equation representing a balance of these energies. In flowing blood, the hydrodynamic forces applied by the plasma and surrounding cells must be added to the bond forces and elastic response of the cell. Under sufficiently strong aggregation, plug flow or large aggregates may result. At high shear rates, aggregation may be prevented due to the small contact time and high shear stresses so that no effects of aggregation may be observed. At intermediate shear stresses, transitory contact, adhesion and disaggregation may occur between neighboring cells. Such phenomena have not been analyzed in detail, but simplified models suggest that plug-like flow can occur due to hydrodynamic cell-cell interaction even when cells are not aggregated. Show more

Keywords: Aggregation, Red blood cells, Rouleaux

DOI: 10.3233/BIR-1990-273-409

Citation: Biorheology, vol. 27, no. 3-4, pp. 309-325, 1990

Price: EUR 27.50

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