[PDF] Top 20 Blood flow of bubbles moving in microchannels with bifurcations

... The results show that the passage of air bubbles influences the cells local concentration, since a higher concen- tration of cells was seen upstream to the bubble and[r] ... See full document

... one of the most essential factors influencing en- dothelial structure and function, and it is the main local flow related factor responsible for coronary atherosclerotic plaque formation and progression 2, ... See full document

... containing microchannels have been proposed to study RBC deformability in environments closer to in vivo ...Most of the proposed microfluidic devices to perform RBC deformability ... See full document

... decrease of the dynamic hematocrit (Hct) with decreas- ing microtube ...formation of a cell-free layer (CFL) near the wall of the ...reduction of apparent blood viscos- ity. ... See full document

... trajectories of different kinds of ...RBCs flow- ing within the focal plane of ...flowing in out of focus planes and consequently these results are most of the times ... See full document

... glass microchannels present certain similarities to in vivo microcirculation, it is also clear that these kind of in vitro experiments differ from microvessels in several respects, such ... See full document

... shown in Figure 7 demonstrate that the  has a strong effect on the CFL thickness as it is observed a significant increase of the CFL with increasing ...Experiments with different ... See full document

... The flow of blood in physiological conditions typi- cally involves large deformation ...zation of blood under conditions of extensional flow, since these can be ... See full document

... result of parabolic profile in both y- and z-directions) and the effect of the wall, the cells tend to be displaced towards the centre of the channel [8, ...is, with dimensions compared ... See full document

... ability of the confocal micro-PTV system to track RBCs, the motions of labeled RBCs were followed at several Hcts (3% to ...calculation of the radial dispersion coefficient (D yy ), measurements were ... See full document

... The flow field in the wake of a Taylor bubble rising in a ...represented in Figure 12. In the 0.6 wt% solution, the recirculation zone in the wake is not so ...than ... See full document

... years in vitro blood studies have been extensively performed and some important physiological phenomena, such as Fahraeus and Fahraeus-Lindqvist effect, were revealed ...Fahraeus-Lindqvist in ... See full document

... results of the comparison between the healthy and chemically modi fied ...observed in the previous section ...detect in Fig. 3 a difference between the deformation of the healthy RBCs ... See full document

... measurements of the blood flow behavior through the in vivo microvascular system has led several researchers to perform their studies by using narrow glass tubes with simple ...using ... See full document

... used in our experiments consists of an inverted microscope combined with a high-speed camera (see Figure ...stage of the microscope where the flow rate of the working fluid was ... See full document

... progress in the development of confocal microscopy and the advantages of this technique over conventional microscopy (Pawley 1990, Inoue and Inoue 2002, Wright and Wright 2002, Amos and White 2003) ... See full document

... influence of a microbubble on the local RBC concentration, plots of the gray-scale values across the microchannel for different time phase, both up- and downstream of the microbubble, are shown ... See full document

... used in this study: pure water (PW), physiological saline (PS) and PS containing about 17%(17Hct) and 20% (20Hct) of human red blood cells ...The blood was collected from a healthy adult ... See full document

... production of PDMS ...ratio) with PDMS deposited in the mold. The glass side was prepared with PDMS (20:1 ratio) and dispersed by means of a spin ...cured in an oven at 80 °C for ... See full document

... volume of the blood is composed of red blood cells (RBCs) which is believed to strongly influence its flow ...properties. Blood flow in microvessels depends ... See full document