Overview
- Researchers at Centenary College of Louisiana presented a clear nail polish that makes fingernails register on capacitive touchscreens at an American Chemical Society meeting.
- They mixed conductive additives into off-the-shelf clear polish and tested ratios to keep the coat even and grippy while reaching the needed conductivity.
- Ethanolamine worked but raised health concerns, while taurine emerged as a less problematic option because it occurs naturally in the body.
- The current effect fades after a limited time, so the team is working on a more stable formula and has not given a timeline for any market launch.
- Capacitive screens sense changes in an electric field, which is why non-conductive nail tips and very dry, keratinized skin often fail to trigger a touch.