Is nanotechnology only about tiny machines?

No. Most near-term uses are particles, coatings, membranes, and sensors, not science-fiction robots.

Why should a poor country spend on nano science?

Because water filters, cheap diagnostics, and solar materials are poverty tools if they are made and regulated at home. Importing finished nano goods still leaves the health risk.

Why is nanotechnology one of the key technologies of the 21st century? Describe

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Nano-scale materials behave differently, so they sit at the centre of medicine, electronics, water, and energy. India’s Nano Mission (2007, DST) funds people, characterisation centres, basic science, and applications. Development uses include filters, diagnostics, solar and battery materials, and industrial coatings. Agriculture and food uses need caution on residue and unknown toxicity. A key technology is also a key regulatory task: worker safety and waste, not only patents.

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Introduction

Nanotechnology works at a scale of about one to one hundred nanometres, where materials show new strength, electrical, and chemical behaviour. That is why it sits beside information technology and biotechnology as a platform of this century: one set of tools can touch medicine, water, energy, textiles, and defence. India answered with the Mission on Nano Science and Technology (Nano Mission) under the Department of Science and Technology from 2007.

Body

Why it is a key technology of this century

At nano scale, surface area rises and quantum effects appear, so a small mass can catalyse, sense, or carry a drug in ways bulk chemistry cannot.
It converges with biotech and information technology: a lab-on-chip, a targeted cancer particle, or a better lithium electrode is often a nano device.
Economic stakes are large: electronics, coatings, composites, and pharmaceuticals will embed nano parts whether India makes them or imports them.
Strategic stakes are real: sensors, lightweight armour, and filtration matter for security and for disaster response.
Risks are also why it is “key”: unknown toxicity, worker exposure, and waste mean a country that only consumes nano products will still face the harm without the skill to regulate.

Salient features of the Nano Mission

Launched in 2007 as a successor to the Nano Science and Technology Initiative, with DST as the nodal department and a Nano Mission Council to steer it.
Human resources: teaching programmes, fellowships, and chairs so India is not only a user of imported nano goods.
Infrastructure: centres of excellence, shared characterisation facilities (electron microscopes, clean rooms) that a single university cannot buy alone.
Basic research in nano science together with application projects in water, energy, health, and security.
Industry linkage and public–private projects so laboratory particles become a filter, a coating, or a diagnostic, not only a paper.
International collaboration and a regulatory conversation on standards and safety, still thinner than the research spend.
The Twelfth Plan continued and enlarged the Mission so the 2007 start did not remain a one-Plan experiment.

Scope in India’s development process

Health: targeted drug delivery, better imaging, implants, and low-cost diagnostics for tuberculosis and other high-burden diseases if regulation and trials are honest.
Water: nano-filtration and silver or other antimicrobial coatings for rural drinking water and for industrial effluent — high development value if sludge toxicity is managed.
Energy: better solar cells, fuel-cell membranes, hydrogen storage, and battery electrodes that support the same renewable targets discussed elsewhere in this paper.
Agriculture: slow-release nano-fertiliser and pesticide can cut dose; they also raise food-safety questions that FSSAI and environment rules must face before cheerleading.
Textiles and materials: stain-resistant and stronger fibres for a large export industry; nano-composites for lighter vehicles and aircraft parts.
Environment: sensors for air and water pollutants in cities.
Caution: without occupational safety, life-cycle tests, and labelling, nano development can export risk to workers and rivers. Public laboratories and the Mission should fund toxicology as seriously as patents.

Flow diagram

flowchart TD
  NANO[Nanoscale platform] --> WHY[New properties convergence strategy]
  MISS[Nano Mission 2007 DST] --> HR[People and shared labs]
  MISS --> APP[Water health energy materials]
  APP --> DEV[Development uses]
  SAFE[Toxicology regulation] --> DEV

Conclusion

Nanotechnology is a key twenty-first-century platform because one scale of matter now redesigns medicine, water, energy, and materials. India’s Nano Mission (2007) built people, shared labs, and application projects under DST. Development gains will come in filters, diagnostics, and energy devices — and will last only if safety and Indian manufacturing rise with the papers.

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Next question on this syllabus topic (2016 · Q20). View answer →
Is nanotechnology only about tiny machines?

No. Most near-term uses are particles, coatings, membranes, and sensors, not science-fiction robots.
Why should a poor country spend on nano science?

Because water filters, cheap diagnostics, and solar materials are poverty tools if they are made and regulated at home. Importing finished nano goods still leaves the health risk.

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Why is nanotechnology one of the key technologies of the 21st century? Describe the salient features of Indian Government's Mission on Nanoscience and Technology and the scope of its application in the development process of the country.