Biorheology - Volume 25, issue 1-2 - Journals

Biorheology - Volume 25, issue 1-2

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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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Article Type: Other

DOI: 10.3233/BIR-1988-251-206

Citation: Biorheology, vol. 25, no. 1-2, pp. 21-21, 1988

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Publications by Syoten Oka

Article Type: Other

DOI: 10.3233/BIR-1988-251-207

Citation: Biorheology, vol. 25, no. 1-2, pp. 23-24, 1988

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Effect of pH on the velocity of erythrocyte aggregation

Authors: Maeda, M. | Seike, M. | Suzuki, Y. | Shiga, T.

Article Type: Research Article

Abstract: The effect of pH on the velocity of aggregation of human erythrocytes was quantitatively examined with a rheoscope combined with a video-camera, an image analyzer and a computer, in relation to the morphological changes of erythrocytes and their aggregates. (i ) With increasing pH of the medium, the velocity of erythrocyte aggregation increased. (ii ) The rouleaux formed at high pH were longer in shape and more stable against the increase of shear rate than those formed at low pH. (iii ) With increasing pH, t.he diameter of erythrocyte increased, the (maximum) thickness decreased, and the cell volume decreased. The …pH dependency of erythrocyte aggregation may be mainly due to the morphological change of erythrocytes, and partly due to the changes of erythrocyte deformability and of interaction with macromolecules. Show more

Keywords: Erythrocytes (human), aggregation, pH, shear rate, fibrinogen, plasma

DOI: 10.3233/BIR-1988-251-208

Citation: Biorheology, vol. 25, no. 1-2, pp. 25-30, 1988

Price: EUR 27.50

To what extent does a minimal atherosclerotic plaque alter the arterial wall shear stress distribution?

Authors: Yamaguchi, T. | Hanai, S.

Article Type: Research Article

Abstract: An electrochemical surface shear stress measurement was applied to a model of very thin unilateral arterial stenosis (height of 1/8 of the model pipe diameter with very smooth surface). Three dimensional wall shear stress distribution was measured under steady flow field from a relatively low Reynolds number, Re=270, to a high Reynolds number, Re=1200. There was a characteristic high and low wall shear distribution pattern around the stenosis. There were also remarkable high shear stress areas on the opposite wall and both side walls of the stenosis. It was clearly shown that three dimensional structure of the flow field, hence, …the wall shear stress distribution, is affected by a minimal change on the arterial wall. Show more

Keywords: arterial blood flow, hemodynamics, wall shear stress, electrochemical method, stenosis, early lesion, atherosclerosis

DOI: 10.3233/BIR-1988-251-209

Citation: Biorheology, vol. 25, no. 1-2, pp. 31-36, 1988

Price: EUR 27.50

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