The invention provides a micro-fluidic
chip used for
cell immobilization and solution
dilution. The invention comprises a transparent
hard substrate layer one surface of which is provided with a plurality of microchannels by means of
machining, and also comprises a transparent elastic rubber layer one surface of which is provided with micro-water pools by means of
machining, wherein, the one surface of the transparent
hard substrate layer which is provided with the microchannels by means of
machining closely clings to the one surface of the transparent elastic rubber layer which is provided with the micro-water pools by means of micro-machining; the microchannels are overlapped with the micro-water pools to form a
closed cell suspension or a solution flowing path; the dimension of the prior micro-water pools is changed through selection of different structures of the micro-water pools or through external force, thereby the flow condition of the whole
chip can be controlled and
cell immobilization of solution
dilution are realized. The micro-fluidic
chip can be used on a microchip to immobilize different biological living cells or abiological particles and then realize
bioanalysis by taking the cells and molecules as the basis; simultaneously, the micro-fluidic chip can control different types of solution and mix the solution according to the set proportion and the
diffusion conditions, and then the solution concentration or the
concentration gradient required is obtained; and the micro-fluidic chip is used for high-flux biological sample analysis.