Figure S2 . Analysis of particle distribution of the BCA channel
test results using the coefficient of variables (CV): (A) Symmetric BCA
+ Strike Magnetic Field, (B) Asymmetric BCA + Strike Magnetic Field, (C)
Symmetric BCA + Rotating Magnetic Field and (D) Asymmetric BCA +
Rotating Magnetic Field.
A BCA channel was fabricated with the RMS cilia and using it, fluid
tests were performed. The experimental results according to the type of
each channel and each magnetic field were evaluated by analyzing the
particle distribution and the traveled distance of the particles. In the
case of particle distribution, the image was analyzed using the
coefficient of variation (CV), which is a value the standard deviation
of the color intensity of the image divided by the mean value of the
color intensity of the image. In this case, the lower the CV value, the
better the particle distribution is. First, it can be seen that the CV
value increases and decreases from 1 to 4 Hz when a strike magnetic
field is applied which is shown in Figure S2A and Figure S2B. It can be
seen that the particles move forward and then converge to the same
concentration as a whole.