https://www.science.org/doi/10.1126/science.adn5694

A team of Chinese researchers has crafted an innovative biomass-derived material using DNA, the genetic blueprint of life. This aerogel demonstrates a remarkable ability to reduce ambient temperatures by 16 degrees Celsius on sunny days, even under intense solar radiation. The researchers combined DNA and gelatin into an ordered layered aerogel structure that converts absorbed ultraviolet light into visible light to surpass 100 percent solar reflectance, yielding exceptional radiative cooling. Moreover, these aerogels, efficiently fabricated on a large scale through water welding, demonstrate remarkable reparability, recyclability and biodegradability.