Droplet actuator devices and methods employing magnetic beads

摘要

A method of assembling a droplet actuator assembly (1400) comprises: attaching to a mount structure (1410) a substrate (1434) including an electrode emitting an electric field (1438) affecting a droplet present in the droplet actuator assembly and a magnet assembly (1420) configured to accommodate a magnet (1428) emitting a magnetic field affecting a magnetically responsive bead present in the droplet actuator assembly. At least one of the substrate (1434) and the magnet assembly (1420) are removably attached to the mount structure (1410). Attaching the substrate (1434) may further comprise selecting the substrate from among a plurality of substrates (1434) configured to attach to the mount structure (1410) and including different electric field emission characteristics, and/or selecting the magnet assembly (1420) from among a plurality of magnetic assemblies (1420), each magnet assembly configured to attach to the mount structure (1410) and including different magnet properties.