Scientists from the University of Illinois (USA) have designed a nanoarm to trap viruses and microscopic particles, transmits “Reedus” with reference to the results of the study. The device was created using DNA origami, a method in which a single long strand of DNA is “stitched together” by shorter pieces of specific sequences.
It is stated that each finger of the Nanohand reaches only 71 nanometers (a billionth of a meter) long, and the fingers are connected by tiny joints. The device was able to bind to the spike protein of the SARS-CoV-2 virus. The result of this manipulation was that the pathogens could no longer infect the cells in the Petri dish. In the latest test, the nanohand also successfully captured gold nanoparticles.
Scientists emphasize that one of the advantages of such an invention is that ordinary DNA is quickly broken down by enzymes in the blood, but DNA origami structures are more stable. Also, according to the researchers, robotic arms could be developed using ultraviolet light – the device could glow during virus detection.
ancient scientists discovered Human and cow DNA in the air 3 kilometers above the ground.