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Nanoscience

Nanoscience. Chemistry 1. GCSE Science. Chapter 6. One million nanoparticles placed side by side would span 1mm. What is a nanoparticle?. GCSE Science. Chapter 6. 93. Billion light years. Macro…. telescope. GCSE Science. Chapter 6. The universe. 100. thousand light years. Macro….

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Nanoscience

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  1. Nanoscience Chemistry 1 GCSE Science Chapter 6

  2. One million nanoparticles placed side by side would span 1mm. What is a nanoparticle? GCSE Science Chapter 6

  3. 93 Billion light years Macro….. telescope GCSE Science Chapter 6 The universe

  4. 100 thousand light years Macro….. telescope GCSE Science Chapter 6 The milky way (our galaxy)

  5. 13 thousand km Macro….. telescope GCSE Science Chapter 6 The Earth (our Planet)

  6. 320 km Macro….. telescope GCSE Science Chapter 6 Wales

  7. 150 metre Macro….. telescope GCSE Science Chapter 6 Millennium Stadium

  8. Macro….. Eye 2 metre GCSE Science Chapter 6 Person

  9. Macro….. Eye 20 cm GCSE Science Chapter 6 Science textbook

  10. Macro….. Eye 2 cm GCSE Science Chapter 6 Your finger

  11. Macro….. Eye 1 mm GCSE Science Chapter 6 Pencil point

  12. Micro….. microscope 300 micrometer GCSE Science Chapter 6 Flea

  13. Micro….. microscope 40 micrometer GCSE Science Chapter 6 Human hair

  14. 20 micrometer Micro….. microscope GCSE Science Chapter 6 One blood cell

  15. 4 micrometer Micro….. microscope GCSE Science Chapter 6 One Bacterium E-coli

  16. 400 nanometre Electron microscope Nano….. GCSE Science Chapter 6 One Flu Virus (Influenza)

  17. 40 nanometre Electron microscope Nano….. GCSE Science Chapter 6 Molecule of protein

  18. 1 nanometre Electron microscope Nano….. GCSE Science Chapter 6 Molecule of Carbon 60

  19. e.g. silver Properties of Nanoparticles The properties of substances change entirely when in nano-sized form. Silver (macro) Silver is a ductile and malleable metal (slightly harder than gold). It’s white with a metallic sheen capable of high shine. It has the highest electrical conductivity of any metal, even copper, and so is used to coat high quality electrodes/ electronic connections. Pure silver also has the highest heat conductivity of all metals (diamond is the only non-metal that’s higher). Because it reflects well, it’s used as a background for mirrors. Silver salts react to light, and silver nitrate is used in photographic film. GCSE Science Chapter 6

  20. Properties of Nanoparticles The properties of substances change entirely when in nano-sized form. • Silver (nano) • Silver in this form shows different properties: • It’s antibacterial • It’s antiviral • It’s antifungal • In each of the above examples, the silver nanoparticles prevent the organism’s respiratory enzymes from working, and so kills them in minutes. • Special socks are now available that include silver nanoparticles in order to heal conditions such as athlete’s foot. Research has shown that silver can also be used to treat many diseases, from flu to HIV. GCSE Science Chapter 6

  21. The silver nanoparticles in this sock kills odour causing bacteria and keep the socks fresh! Coating the inside of the fridge with silver nanoparticles ensures that any microbe is killed and keeps the fridge clean hygienic and safe. Nanoparticles in the washing machine ensure that the clothes are cleaned and disinfected. Using Silver Nanoparticles GCSE Science Chapter 6

  22. Some have antibacterial, antiviral and antifungal properties Could penetrate skin and cause undesired side-effects Preparation of certain catalysts Easily released into the environment Nanoparticles Unusual properties, leading to new uses There is a lot that we don’t know about nanoparticles at the moment. Much more research is needed before their use becomes widespread Advantages and disadvantages of using nanoparticles Disadvantages Advantages GCSE Science Chapter 6

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