Boundary-layer Type Solutions for Initial Platelet Activation and Deposition

@article{citeulike:2683108, abstract = {This paper presents, on the basis of high Peclet number, a mathematical model for the activation and initial adhesion of flowing platelets onto a surface. In contrast to past work, the model is applicable to general 2D and axi-symmetric flows where the wall shear stress is known a priori. Results indicate that for high activation reaction rates there exist two layers, one containing only activated platelets and the other both activated and non-activated platelets. Fundamental relationships are proposed between the adhesion rate of platelets to the surface and the characteristic parameters of Peclet number and Reynolds number. Activation in the bulk fluid (blood) is characterised by the Damkohler number, which is a function of activation rate and the free-stream velocity. It is shown that, as the free-stream velocity varies, there exists a maximum of activated platelet flux to the wall for particular values of the velocity. These values, at which the maximum occur, are themselves functions of the platelet activation rate. As the free-stream velocity increases the activation of platelets ceases altogether and adhesion is reduced to a very small value strengthening the hypothesis of the correlation between atherogenesis/thrombogenesis and areas of low shear.}, author = {David, T. and de Groot, P. G. and Walker, P. G. }, citeulike-article-id = {2683108}, doi = {10.1080/1027366021000003261}, issn = {1027-3662}, journal = {Journal of Theoretical Medicine}, keywords = {activation, deposition, platelet}, month = {January}, pages = {95--108}, posted-at = {2008-04-17 19:14:42}, priority = {2}, publisher = {Taylor and Francis Ltd}, title = {Boundary-layer Type Solutions for Initial Platelet Activation and Deposition}, url = {http://dx.doi.org/10.1080/1027366021000003261}, year = {2002} }

TY - JOUR ID - citeulike:2683108 L3 - citeulike-article-id:2683108 TI - Boundary-layer Type Solutions for Initial Platelet Activation and Deposition JF - Journal of Theoretical Medicine SP - 95 EP - 108 PB - Taylor and Francis Ltd SN - 1027-3662 N2 - This paper presents, on the basis of high Peclet number, a mathematical model for the activation and initial adhesion of flowing platelets onto a surface. In contrast to past work, the model is applicable to general 2D and axi-symmetric flows where the wall shear stress is known a priori. Results indicate that for high activation reaction rates there exist two layers, one containing only activated platelets and the other both activated and non-activated platelets. Fundamental relationships are proposed between the adhesion rate of platelets to the surface and the characteristic parameters of Peclet number and Reynolds number. Activation in the bulk fluid (blood) is characterised by the Damkohler number, which is a function of activation rate and the free-stream velocity. It is shown that, as the free-stream velocity varies, there exists a maximum of activated platelet flux to the wall for particular values of the velocity. These values, at which the maximum occur, are themselves functions of the platelet activation rate. As the free-stream velocity increases the activation of platelets ceases altogether and adhesion is reduced to a very small value strengthening the hypothesis of the correlation between atherogenesis/thrombogenesis and areas of low shear. KW - activation KW - deposition KW - platelet AU - David, T AU - de Groot, PG AU - Walker, PG PY - 2002/01// UR - http://dx.doi.org/10.1080/1027366021000003261 ER -