Binghamton researchers develop new DNA sunscreen

Researchers at Binghamton University have developed a DNA-based coating to protect skin from ultraviolet (UV) light.

This hydrating sunscreen is said to become more effective the longer it is exposed to the sun.

A research team led by Binghamton University biomedical engineering assistant professor Guy German was developing thin and optically transparent crystalline DNA films.

The researchers observed that the absorbing capacity of the films increased when irradiated with UV light, which continued with prolonged exposure.

German said: "If you translate that, it means to me that if you use this as a topical cream or sunscreen, the longer that you stay out on the beach, the better it gets at being a sunscreen.”

As the DNA films are hygroscopic, they store and retain larger amounts of water. After application on human skin, the films slow down water evaporation, hydrating the tissue for a longer duration.

German further added: "Not only do we think this might have applications for sunscreen and moisturisers directly, but if it’s optically transparent and prevents tissue damage from the sun and it’s good at keeping the skin hydrated, we think this might be potentially exploitable as a wound covering for extreme environments.”