Nanorobots

News: Dr. Ambarish Ghosh of IISc Bengaluru received the 2025 Tata Transformation Prize for developing magnetic nanorobots for cancer treatment.

About Nanorobots

• Nanobots are microscopic robots (often around 1–100 nm) that can be programmed to carry out specific tasks.
• When nanorobots are designed specifically for healthcare/medical tasks, they are referred to as medical nanobots or nano medical robots.
• Working Mechanism of Nanorobots
  • Nanorobots work through a combination of sensing, movement, control, and action at the nanoscale.
  • Navigation: They move through body fluids like blood using chemical reactions, magnetic fields, or natural fluid flow.
  • Sensing: Sensors on nanorobots detect specific cells, chemicals, or conditions such as cancer markers or infection signals.
  • Decision-making: Pre-programmed instructions guide their response after detecting the target.
  • Action: They release drugs, destroy harmful cells, repair tissues, or send diagnostic information.
  • Exit or breakdown: After completing their task, they are designed to safely degrade or be removed from the body.
• Applications
  • Medical Applications
    • Targeted drug delivery: Nanorobots deliver medicines directly to diseased cells, reducing side effects on healthy tissues.
    • Cancer treatment: They identify tumour cells and release anti-cancer drugs precisely at the target site.
    • Early disease diagnosis: Nanorobots detect infections, cancer markers, or abnormal proteins at an early stage.
    • Blood clot removal: They help break down clots inside blood vessels without major surgery.
    • Precision surgery: Nanorobots assist in repairing tissues and cells at microscopic levels.
    • Continuous health monitoring: Nanorobots track blood sugar, toxins, or disease markers inside the body.
    • Pathogen detection: They identify bacteria and viruses quickly and accurately.
  • Environmental Applications: Nanorobots help detect and remove pollutants, heavy metals, and toxic chemicals from water, air, and soil.
  • Industrial Applications: Nanorobots support precision manufacturing, material assembly at the molecular level, and detection of microscopic defects.
  • Agricultural Applications: Nanorobots assist in targeted delivery of nutrients and pesticides, early detection of plant diseases, and soil health monitoring.