A liquid-metal based spiral magnetohydrodynamic (MHD) micropump is proposed in this work. The micropump was fabricated in a polydimethylsiloxane (PDMS)-glass hybrid microfluidic chip. This pump utilized two parallel liquid-metal-filled channels as electrodes to generate a parallel electrical field across the pumping channel between the two electrodes. To prevent contact and cross contamination ...

Low flow rate micropumps play an increasingly important role in drug therapy research. Infusions to small biological structures and lab-on-a-chip applications require ultra-low flow rates and will benefit from the ability to expend no power in the blocked-flow state. Here we present a planar micropump based on gallium phase-change actuation that leverages expansion during solidification to occl...

We present the design, test and theoretical analysis of a novel micropump. The purpose is to make a pump with large flow rate (approximately 10 microL min-1) and high pressure capacity (approximately 1 bar) powered by a low voltage DeltaV<30 V. The pump is operated in AC mode with an electroosmotic actuator in connection with a full wave rectifying valve system. Individual valves are based on a...

We present an implantable micropump with a miniature form factor and completely wireless operation that enables chronic drug administration intended for evaluation and development of cancer therapies in freely moving small research animals such as rodents. The low power electrolysis actuator avoids the need for heavy implantable batteries. The infusion system features a class E inductive poweri...

Among the large number of microfluidic components realized up to now, micropumps clearly represent the case of a “long runner” in science. A brief literature review reveals, that one of the first scientific papers on a micropump dates from 1978 [4], which is more than two decades ago. An increasing number of publications is found from that time on representing widespread research activities, an...

Abstract Piezoelectric micropump and surface tension are generally favored in industrial applications, but these two micropumps have obvious defects through practice. Due to the presence of a piezoelectric oscillator, it is difficult reduce volume by optimization further, oscillator will be damaged certain extent after use for long time. Based on electric wetting dielectric (EWOD), new, efficie...