The Characteristic Analysis of Electroosmotic Micropump with Multistage Nano-Tubes

Abstract

This study used porous alumina membranes with nanopores as nanopore channels and successfully constructed a single-stage/multistage nanotube electroosmotic micropump. The characteristics of electroosmotic nanotubes pump constructed using porous alumina membranes with varying pore sizes and at different stages were also analyzed. During the experiments, applying a multistage nanotube electroosmotic micropump with the same pore size at the two stages yielded a superior performance curve compared to that of the single-stage nanotube electroosmotic micropump. The flow volume and pressure difference of the pump increased rapidly with the input voltage. Thus, the flow volume of multistage nanotube electroosmotic micropump with the same pore size can be increased more than twice that of single-stage pumps. With a high input voltage, the multistage micropump showed a significant, approximately 4-fold increase.