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PPT: Nanotechnology

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FAQs on PPT: Nanotechnology

1. What is nanotechnology?
Ans. Nanotechnology is the manipulation of matter on an atomic, molecular, and supramolecular scale, typically at dimensions between 1 and 100 nanometres. It encompasses various fields such as materials science, biology, chemistry, and physics, allowing for the development of new materials and devices with unique properties and functions.
2. What are some applications of nanotechnology in medicine?
Ans. In medicine, nanotechnology is applied in drug delivery systems, where nanoparticles can be used to transport drugs directly to target cells, enhancing efficacy and reducing side effects. It is also utilised in imaging techniques, such as MRI and CT scans, where nanoparticles improve contrast and resolution, and in the development of diagnostic tools that can detect diseases at an early stage.
3. How does nanotechnology benefit environmental sustainability?
Ans. Nanotechnology contributes to environmental sustainability through various means, such as the development of nanomaterials that can clean up pollutants, improve energy efficiency, and enhance renewable energy technologies. For instance, nanomaterials can be used in water purification systems to remove contaminants more effectively, and in solar panels to increase energy conversion efficiency.
4. What are the potential risks associated with nanotechnology?
Ans. The potential risks of nanotechnology include toxicity of nanoparticles, which may pose health hazards if inhaled or absorbed by the body. Additionally, the environmental impact of nanomaterials is still under investigation, as their small size may lead to unforeseen interactions in biological and ecological systems. Regulatory frameworks are necessary to assess and mitigate these risks effectively.
5. How is nanotechnology relevant to the field of electronics?
Ans. In electronics, nanotechnology plays a crucial role in the miniaturisation of components, leading to the development of smaller, faster, and more efficient devices. Nanoscale materials such as carbon nanotubes and quantum dots are used in transistors, displays, and sensors, enhancing performance and enabling new functionalities in consumer electronics and computing technologies.
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