Science.-China stores images of ancient cave paintings in DNA – Publimetro México


A team of Chinese scientists scrambled 10 digital images of the Dunhuang murals into 210,000 strands of DNA through the nucleotide sequences in a compressed 6.8MB file and can accurately extract from a badly damaged sample treated at 70 degrees Celsius for 70 days be restored, reports Xinhua.

The city of Dunhuang in northwest China’s Gansu Province is home to the Mogao Grottoes, a UNESCO World Heritage Site that houses a vast collection of Buddhist artworks, including about 45,000 square meters of murals.

DNA data storage is a rapidly developing technology due to its high density, long-term durability, and low maintenance costs. However, the errors commonly encountered in in vitro coding remain a major technical challenge for this technology.

A team of researchers led by Yuan Yingjin of Tianjin University has developed an error-prone chain-assembly algorithm that allows mural curators to accurately retrieve data from DNA solutions stored at 9.4 degrees Celsius without any protection for about 20,000 years were kept.

They set the thread redundancy to 7.8%, which allows for reliable data recovery when the decoder receives more than 95% of the threads, according to the study recently published in the journal Nature Communications.

Previously, Yuan’s team designed a yeast artificial chromosome that encodes two images and a video clip, and the study results were published in the National Science Review in 2021.

The recent advance makes DNA one of the strongest storage mediums that can help protect and pass on cultural heritage, the researchers said.

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