MICROFLUIDIC PARTICLE SEPARATION DEVICE

摘要

A microfluidic particle separation device includes a substrate and a plurality of electrode bars formed on the substrate, disposed around as array center, angularly spaced apart from one another, and extending radially with respect to the array center so as to form a radially-extending electrode array that is capable of inducing circular or elliptical shear flow of the liquid through travelling-wave electroosmosis when being applied with a travelling-wave electric potential.

主权项

1. A microfluidic particle separation device for separating particles of different sizes in a liquid, said microfluidic particle separation device comprising:
a substrate; and a plurality of electrode bars formed on said substrate, disposed around an array center, angularly spaced apart from one another, and extending radially with respect to the array center so as to form a radially-extending electrode array that is capable of inducing circular or elliptical shear flow of the liquid through travelling-wave electroosmosis when being applied with a travelling-wave electric potential; wherein every two adjacent electrode bars cooperatively define therebetween, a gap that has a width which varies with the radius of said radially-extending electrode array so as to induce a radial dielectrophoretic force acting on the particles through radial dielectrophoresis.