10/08/2025
Scientists at Drexel University in the United States have developed a nanometer-scale robot, about 200 nanometers wide, capable of clearing cholesterol from blood vessels without surgery.
Built from biocompatible iron-oxide beads arranged in a spiral shape, the tiny device can move through the bloodstream like a corkscrew, propelled and guided remotely using external magnetic fields.
This design allows precise navigation inside arteries, even through narrow or twisted pathways.
Once at the target site, the nanobot physically breaks down cholesterol plaque blocking the vessel walls.
At the same time, it can release anticoagulant medication, helping to prevent dangerous blood clots during and after the procedure.
Because of its scale and non-invasive nature, this approach could potentially replace or reduce the need for surgeries like stent placement or bypass operations.
Currently, the technology is still in laboratory testing and has not yet reached human clinical trials.
However, researchers believe it could significantly improve treatment success rates, shorten recovery time, and lower procedural risks once it is refined for safe use in patients.
If successful, this innovation could transform how cardiovascular blockages are treated, offering a precise, minimally invasive solution for one of the world’s leading causes of death.
