Polydopamine Microfluidic System toward a Two‐Dimensional, Gravity‐Driven Mixing Device

Given path: A polydopamine-based, pump-free, two-dimensional microfluidic system is energy-efficiently operated by gravity (see picture). The device consists of polydopamine (pD) micro-patterns on nanostructured, superhydrophobic anodized aluminum oxide (AAO) surfaces on which liquid droplets move along the micro-patterned paths of the polydopamine. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.