The influence of steric effects on the performances space electroosmotic thrusters (EOTs) was numerically delineated in soft nanochannels for which its walls are covered with polyelectrolyte materials. size effect ionic species, namely effect, is neglected many previous research studies, but it has vital influences electrostatic potential and velocity, further introduced into present study orde...

Acoustic handling of nanoparticles in resonating acoustofluidic devices is often impeded by the presence acoustic streaming. For micrometer-sized chambers, this streaming typically driven viscous shear thin boundary layer near fluid-solid interface. Alternating current (ac) electroosmosis another boundary-driven phenomenon routinely used microfluidic for particle suspensions electrolytes. Here,...

changes of hydrodynamic parameters in microchannel branches affect the suspended biological samples in blood. to prevent denaturation and hemolysis, we have numerically investigated the effect of divergence angle on shear rate and velocity at branch entrance (discharge rate), under electroosmotic flow. in such flow, hydrodynamic properties are also affected by zeta potential at the microchannel...

We demonstrate a technique for the precise immobilization of nanoscale objects at accurate positions on two-dimensional surfaces. We have developed a water-based photoresist that causes nanostructures such as colloidal quantum dots to segregate to a thin layer at surfaces. By combining this material with electroosmotic feedback control, we demonstrate the ability to position selected, individua...

Three alkali cations, potassium, sodium, and lithium, have been separated within 15 s in a 1 cm long polymer microchip. The separation microchannel is modified by a polycation, poly(allylammonium chloride), which makes the channel surfaces positively charged leading to a reversed electroosmotic flow (EOF) when compared to bare channels. Due to the decreased apparent mobility of the cations, the...