Superhydrophobic-Superhydrophilic Microarray: formation of microarrays of droplets

DropletMicroarray: Facile formation of arrays of microdroplets and hydrogel micropads for cell screening applications Erica Ueda, Florian L Geyer , Victoria Nedashkivska, Pavel Levkin* Lab Chip, (2012) 12, 5218-5224 We describe a one-step method for creating thousands of isolated pico- to microliter-sized droplets with defined geometry and volume. Arrays of droplets are instantly formed as liquid moves along a superhydrophilic--superhydrophobic patterned surface. Bioactive molecules,