Isolated microfluidic stagnation point flows–stagnation point flows formed within microfluidic
interfaces–have come a long way as a tool for characterizing materials …

We present an Anti-Brownian Electrokinetic trap (ABEL trap) capable of trapping individual
fluorescently labeled protein molecules in aqueous buffer. The ABEL trap operates by …

In this paper, we show how to combine microfluidics and feedback control to independently
steer multiple particles with micrometer accuracy in two spatial dimensions. The particles are …

Any single permanent magnet or electromagnet will always attract a magnetic fluid. For this
reason it is difficult to precisely position and manipulate ferrofluid at a distance from …

We introduce a fast and robust technique for single-particle tracking with nanometer
accuracy. We extract the center-of-mass of the image of a single particle with a simple …

This article is on microscale flow control, on dynamically shaping flow fields in microfluidic
devices to precisely manipulate cells, quantum dots (QDs), and nanowires. Compared to …

We show how to extend electrokinetic tweezing (which can manipulate any visible particles
and has more favorable force scaling than optical actuation enabling manipulation of …

We demonstrate how to use feedback control of microflows to steer multiple particles
independently in planar microfluidic systems driven by electro-osmotic actuation. This …

This paper describes results and challenges in feedback control of microfluidic systems.
Results are provided for two representative examples: control of liquid droplets by …

An algorithm is developed that allows steering of individual particles inside electrowetting
systems by control of actuators already present in these systems. Particles are steered by …