ABSTRACT

Electroosmotic flow has been the main liquid pumping method because it does not require moving parts. The EOF in a network of channels has been modeled by the electric current flowing in a network of resistors using Kirchoff’s rules. On the basis of this study, a better control of liquid flow can be achieved by designing channels of different solution resistances and by applying different voltages [324]. Surface modification of the microchannel is sometimes necessary to manipulate the direction and magnitude of EOF (see section 3.2.1).