Nanotechnology ziz waady The outline : 1.Definition of Nanotechnology 2.Historical Development ➢ In ancient history ➢ In modern era 3.Applications of Nanotechnology ➢ Healthcare Revolution ➢ Electronics and Computing ➢ Energy Innovation and Environmental Impact 4. Risks and Ethical Considerations 5. Conclusion Understanding the topic : Nanotechnology was defined by the National Nanotechnology Initiative as the manipulation of matter with at least one dimension sized from 1 to 100 nanometers (nm).This enables the creation of materials and devices with enhanced properties. The ability to control matter at the nanoscale has far-reaching implications across industries. Historical Development ➢ In ancient history : • People have been using nanomaterials for more than 4 000 years without fully understanding the science behind them. • Many clay minerals contain natural nanomaterials, and have been used for thousands of years for example in construction, medicine, and art. • Recent scientific analysis has also shown that leadbased hair dye used in ancient Egypt contained synthesised lead sulphide nanocrystals. • The Lycurgus Cup, a 4th century Roman glass cup contains gold and silver nanoparticles that change colour depending on the lighting. ➢ Modern Era of Nanotechnology Applications of Nanotechnology ➢Healthcare Revolution ➢ Electronics and Computing ➢Energy Innovation and Environmental Impact Risks and Ethical Considerations The widespread adoption of nanotechnology raises concerns about safety, ethical implications, and regulatory frameworks. Addressing these challeng es is crucial to ensure the responsible and beneficial application of nanotec hnology. ➢Weapons ➢Rampant Nanomachines ➢Surveillance With such potential dangers inherent in nanotechnology, we must seriously examine its potential consequences. Conclusion : In conclusion, nanotechnology has the potential to re volutionize industries,drive innovation, and address gl obal challenges. Embracing the opportunities and ad dressing the challenges will pave the way for a future empowerd by this fascinating technology.
