Scientists are developing DNA robots, microscopic machines that could in the future move through the human body, target diseased cells and precisely deliver therapy. DNA, known as the carrier of genetic information, is now taking on a new role as it becomes the building material for nano-robots capable of complex tasks at the molecular level.
Although the idea seems revolutionary, this technology is still in the early stages of development. Most of the existing DNA robots are experimental prototypes, but progress is evident thanks to new design methods that allow bending, folding and controlled movement of DNA structures.
DNA robots as future nano-surgeons
One of the most important potentials of this technology is its application in medicine. DNA robots could function as precision “nano-surgeons”, finding specific cells such as tumors and directly delivering drugs, thereby minimizing damage to healthy tissue. Also, experiments have shown that DNA structures can capture viruses like SARS-CoV-2, which opens the door to systems that combine diagnostics and therapy.
Controlling these robots is a special challenge. Scientists use chemical and physical methods to control their behavior, including the DNA “strand displacement” mechanism, which allows movement and reactions to be programmed at the molecular level. In addition, external stimuli such as light, magnetic and electric fields are also used.
The potential of DNA robots is not limited to medicine. In the field of atomic-scale manufacturing, they could serve as precise tools for positioning particles, enabling the development of advanced computing systems and optical devices that exceed today’s technological limits.
ShutterstockHowever, key problems remain. The random movement of molecules makes precise control difficult, while most DNA robots function as isolated systems with limited capabilities. The lack of standardized databases and simulation tools further slows down development.
Researchers believe that future progress will depend on a combination of artificial intelligence, standardization of DNA components and advances in biotechnological production. If these challenges are overcome, DNA robots could become a key tool for managing processes at the molecular level and open a whole new era of technology and medicine, reports SciTech Daily.