Active Janus Droplet as a Micro‐Reactor for Automatic DNA/RNA Precipitation and Extraction

We explore the possibility to precipitate and extract DNA, or RNA using an active water/ethanol Janus droplet. The droplet is initially formed by a single made of mixture in oil/surfactant solution. This self-propels absorbs surfactant molecules, advection, while moving oily phase. absorption leads phase separation formation water-rich leading ethanol-rich trailing employ this method RNA, DNA/RNA mixtures independently, automatic manner. precipitation extraction achieved tuning their water solubility with addition salt then it demonstrated fluorescence.