Nanorobots for the treatment of leukemia

By Zafeiros Anastasiou

According to recent research from Harvard University, a tiny robot from DNA can identify and kill leukemia cancer cells, leaving healthy cells intact. University scientists used origami DNA technique to build the nanorobot. 

Folding sections of genetic material created two surfaces that open and close in a bead-like shape. Antibodies were shut down between the two "doors" of the robotic nanochivada to detect and kill enemy cells. They then sealed the "doors" with two locks, which were programmed to open, releasing the antibodies each time they detected the presence of molecules.

In laboratory tests, millions of copies of the nanorobot were released into a mixture of healthy and human cancer cells. About 3 days later it was observed that half of the cancer cells had been destroyed, while the healthy ones had remained intact. Before beginning animal testing, researchers aim to give their robot a longer lifespan. This will help it circulate in the blood for a long time and be able to kill even the last cancer cell.

Mr Douglas, one of the study's lead authors, said that in diseases such as cancer, we need to identify and kill every single cell in order to cure it. He added that the robot could be used in the future to treat other cancers. This study was published in the journal Science.

Source: CITIZEN