Context
- Conventional cancer therapies face difficulty in delivering drugs deep inside tumors without harming healthy tissue.
- Researchers at IISc Bengaluru are developing magnetic nanobots to precisely target cancer cells, enabling personalized and minimally invasive treatment.
Nanobots
- Nanobots are microscopic, robot-like structures designed to operate inside the human body.
- They can navigate biological environments, deliver drugs directly to tumours, and distinguish between cancerous and healthy cells.
- They may also assist in diagnostics and imaging.
Working Mechanism
- Nanobots are designed to target specific tissues such as cancer cells.
- They are introduced into the body through injection or bloodstream.
- Navigation is guided using external magnetic fields or chemical signals.
- Biological markers enable recognition of cancer cells.
- Drugs are released or cancer cells are destroyed locally.
- Damage to healthy tissue is minimised.
- Nanobots biodegrade or are naturally eliminated after action.




