Seek And Destroy

These Scientists Say Nanobots Could Kill Individual Cancer Cells

They could also be used to track, target, and deliver anticancer drugs to tumor cells.

5. 20. 20 / Dan Robitzski
Kosel et al./Victor Tangermann
Image by Kosel et al./Victor Tangermann

A team of scientists from Saudi Arabia is planning to implant individual cells with iron nanobots that can track their location in the body — and perhaps even kill off tumors.

The tiny nanobots, little more than microscopic coils of metal wires, would show up during an MRI scan, allowing doctors to watch their movement through the body. They could also be used to track, target, and deliver anticancer drugs to tumor cells, according to the King Abdullah University of Science and Technology researchers behind the project.

“Cell labeling and tracking has become an invaluable tool for scientific and clinical applications,” Aldo Martinez-Banderas, a grad student who worked on the project, said in a press release. “One of the key aspects of cell tracking studies is the sensitivity to detect a small number of cells after implantation, so the strong magnetization and biocompatibility of our nanowires are advantageous characteristics for MRI tracking.”

So far, the nanobots haven’t been used to actually kill off cancer cells, though the team has ideas on how they might. Thus far, the nanobots were used to successfully identify breast cancer cells through MRI readings, according to research published in the Journal of Nanobiotechnology.

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“These core-shell nanowires have various additional features, including the ability to control them magnetically to guide them to a particular location, to carry drugs, or be to heated with a laser,” lead researcher Jürgen Kosel said in the release. “Combining all of that with the capability of tracking creates a theranostic platform that can open the door for very promising new approaches in nanomedicine.”


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READ MORE: Iron nanorobots go undercover to do surveillance on living cells in real time [King Abdullah University of Science and Technology]

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