microchannel boundary sliding speed of the flow measuring device for micro- fluid dynamics

摘要

In the microfluidic device for measuring the mechanical interface between the sliding speed in Microfluidic chip, channel solution inside solution is designed to flow inside the flow to measure the slip velocity in the channel wall and the boundary appearing in the solution of the micro-fluidic chip; Electric supply to provide the electro-osmotic flow in the micro-fluidic chip; And a pump to provide a pressure-driven flow in the micro-fluidic chip, the micro-fluidic chip is the front end of the solution or slip velocity change rate measurement is possible to change the design according to the width of the channel, and electro-osmotic pressure driving the microfluidic device of the solution flow dynamics of the channel characterized by the interior is designed to selectively implement is disclosed. According to the present invention, a pressure difference with respect to the electric field naejineun shear rate value of each of the multiple channels and the channel width of the channel section is designed to vary from one channel designed to vary the measurement to form on one chip. Therefore, the measurement time This can be improved significantly reduced and the accuracy of the results.