Ans. :-
- Nanotechnology (1–100 nm scale) enables precise control over material properties, with wide defense applications.
- India has institutional support through Defence Research and Development Organisation and the Nano Mission under DST.
Potential of Nanotechnology:
- Advanced Materials & Armor:
-Carbon nanotubes, graphene-based composites for lighter, stronger armor.
Example: Defence Materials and Stores Research and Development Establishment developed ultra-light bulletproof jackets (BIS Level-6). - Enhanced Surveillance & Reconnaissance:
-Nano-sensors (chemical/biological/radiation detection) and nano-drones for real-time intelligence in border areas. - Precision-Guided Weapons: Nanothermites and nano-energetics increase explosive efficiency and targeting accuracy.
- Stealth & Camouflage:-
-Metamaterials and nano-coatings reduce radar cross-section and infrared signatures (useful in submarines, aircraft like HAL Tejas). - Energy & Power Systems:
-Nano-enabled lithium–sulfur batteries, supercapacitors, and flexible solar cells improve endurance of soldiers and UAVs. - CBRN Defense:
-Nanotech-based filters and protective suits against chemical, biological, radiological, nuclear threats. - Secure Communication:
-Nano-photonics, quantum dots, and quantum encryption enhance secure military networks.
Challenges:
- High R&D cost and long gestation periods
- Import dependence for critical nanomaterials
- Dual-use risks and regulatory gaps
Conclusion:-
- Strengthening indigenous R&D, public-private partnerships, and global collaboration can make nanotechnology a force multiplier for India’s defense and strategic autonomy