Translation from asymmetrically localized mRNA(GFP-mCherry)-NPs in droplet. Left panel: Bright field observation of mRNA-NP string-like assemblies. Middle, and right panels: Time dependent production of GFP (middle panel) and mCherry (right panel). The direction of the magnetic forces was directed towards the right. Epifluorescence microscopy, Scale bar: 20 μm, one frame every 5 minutes.