GinamiPhoto/Shutterstock If you have ever worn fake nails or let your nails grow out, you know the struggle of interacting with a touchscreen. They don't work well with the technology, making it difficult to do even normal tasks. Of course, those used to the experience learn to compensate. But what if nails could be modified so they're recognized by a touchscreen? Better yet, what if you could use them as a makeshift stylus? That may be possible thanks to an innovative polish that disrupts the screen's electric field, as reported by researchers at an  American Chemical Society  meeting. The way it works is simple. Touchscreen devices are engineered with a thin layer of conductive material, protected by a layer of transparent glass. The conductive layer creates an electric field that persists across the top surface of the device.…