Overview
- The Centenary College of Louisiana team, which presented results Monday at the American Chemical Society meeting, showed a clear prototype that lets a nail register on a capacitive touchscreen.
- The polish likely works through acid–base proton exchange at the surface that shifts charge just enough for the screen to read a touch.
- Screening 13 clear polishes and 50-plus additives highlighted taurine and ethanolamine as the strongest pair for the effect.
- The blend is not ready for users because thin coats on real nails do not work reliably and the effect fades after hours to about a day.
- Ethanolamine can irritate skin and evaporates quickly, taurine can make the finish slightly opaque, and the team has filed a provisional patent while it searches for safer, longer-lasting, and truly clear formulas to aid people with long nails or callused, dry, or gloved fingertips.