To achieve the best sub-array dividing solution for digital microfluidic biochip

The test process was modeled

and test cost that measured by test time and the number of test droplets is proposed in this paper.The test cost is analysed by the tools of MATLAB

and some important discoveries are achieved.The first is that with the increasing of the number of sub-arrays divided

the test cost will rise at first

and then go down

and the number of sub-arrays divided corresponding the lowest cost is selected as the best sub-array dividing solution for parallel testing.In addition

test cost will rise with test time proportion increasing

and decease with the number of test droplets raising while the number of sub-arrays divided less than the best sub-arrays divided numbers.On the other hand

when the number of sum-arrays divided more than the best sub-arrays divided numbers

test cost decrease with test time proportion increasing

and rise with the proportion of the test droplets number raising.