Bead-blood mixing time

Table 1 Effects of bead size, antibody activation, and bead-blood mixing time on percentage of CD3+ lymphocytes in whole blood of normal donor...

Subjects made complete collections of urine and stools throughout each study. Feces for each subject were divided into period lots representing food eaten during each period by use of fecal dyes (brilliant blue and carmine red) and colored glass beads, composited, mixed and sampled for later analyses. Urine for each subject for each day was composited on the basis of time, diluted to a constant volume with distilled water, mixed, sampled and frozen for later analyses. Fasting blood samples were drawn at the beginning of each study and at the end of each experimental period. 

A biological application, bacteria capture by mixing of blood/bacteria samples with magnetic beads, was carried out in the L-shaped micro mixer [49], A high capture efficiency of 99% was obtained at a short time of 0.15 s. The blood cells and bacteria remained intact after the mixing process, evidencing the low shear strain field of the flow. 

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