Dynamic Microarray Devices for the Observation of Paired Different Types of Beads

In this study, we propose a dynamic microarray device that can trap two adjacent different beads in one spot. By combining a pair of microfluidic channels, we can make an array of two different types of 100 μm-sized beads in a line. We expect that this method will be useful in the continuous observation of the interaction or molecular diffusion between the beads.