Electroosmosis is one of the most used actuation mechanisms for microfluidics in current active lab-on-chip devices. It generated on induced charged microchannel walls contact with an electrolyte solution. Electrode distribution plays key role providing external electric field electroosmosis, and determines performance electroosmotic microfluidics. Therefore, this paper proposes a topology opti...

Microfluidics is a hot topic and one we have previously written about in this column. We have covered everything from microchips to rethinking the glucometer. Recently, we rediscovered a 2011 report (1 ) that takes the ideas behind microfluidics—manually or passively manipulating a fluid, particularly to identify what is in it—and suggests applying new knowledge we have about the ever-familiar ...

Digital microfluidics (DMF) is a popular alternative to traditional in-channel microfluidics, which allows precise control of individual droplets. Most commonly used droplet manipulation methods for DMF are electrowetting on dielectric (EWOD) and magnetic actuation. Both methods require high surface hydrophobicity to facilitate droplet movement, and often superhydrophobic surfaces are used to f...