1. Nano-Science Buckmisterfullerene

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

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

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

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

6. Macro….. km 320 Wales telescope GCSE ScienceChapter 6

7. Macro….. metre 150 Millennium Stadium telescope GCSE ScienceChapter 6

8. Macro….. metre 2 Person Eye GCSE ScienceChapter 6

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

10. Macro….. cm 2 Your finger Eye GCSE ScienceChapter 6

11. Macro….. mm 1 Pencil point Eye GCSE ScienceChapter 6

12. Micro….. micrometer 300 Flea microscope GCSE ScienceChapter 6

13. Micro….. micrometer 40 Human hair microscope GCSE ScienceChapter 6

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

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

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

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

18. Nano….. nanometre 1 Molecule of Buckmisterfullerene Electron microscope GCSE ScienceChapter 6

19. What is nanoscience? A nanometer (nm) is 1,000,000,000 (1 billion) times smaller than a meter. Nano-science is the study of particles that have the size of 1 to100nm. Your finger nails grew a nm while reading this! A nanometer (nm) is 1,000,000,000 (1 billion) times smaller than a meter. Nano-science is the study of particles that have the size of 1 to100nm. Your finger nails grew a nm while reading this!

20. Imagine a nanoparticle was the size of a football. A chicken would be the size of earth A flea would be the size of Derby. A virus would be the same size as a human! A chicken would be the size of earth A flea would be the size of Derby. A virus would be the same size as a human!

21. Why are we interested in nano-science? Nanosized particles can produce NEW properties in materials These properties are different to their behaviour in large scale – eg silver Nanoparticles are so tiny that they have a huge surface area for a small volume. Nanosized particles can produce NEW properties in materials These properties are different to their behaviour in large scale – eg silver Nanoparticles are so tiny that they have a huge surface area for a small volume.

22. Is nano-science about in our lives today? – YES!! Lots and lots of things that you have used this morning have used nanoscience – straightners, toothpaste, phones, makeup……. Silver is very widely used - nano sized silver particles have antibacterial, antiviral and antifungal properties. Where could these be used? Lots and lots of things that you have used this morning have used nanoscience – straightners, toothpaste, phones, makeup……. Silver is very widely used - nano sized silver particles have antibacterial, antiviral and antifungal properties. Where could these be used?

23. Antifungal/antibacterial Properties Some socks have been developed with the silver in to help people who suffer from athletes foot.

24. Nano-sized titanium dioxide absorbs and reflects UV light while being transparent to visible light. Why is this useful? Where could be use this? http://www.bbc.co.uk/learningzone/clips/nan otechnology-used-in-sunscreen- manufacture/6004.html

25. Buckmisterfullerene Fullerenes are carbon incredibly small carbon based molecules. They can be used for strengthening materials (for example sports equipment) and are sometimes used as a way of delivering drugs into the body.sports equipment delivering drugs What type of bonding is this likely to contain? Fullerenes are carbon incredibly small carbon based molecules. They can be used for strengthening materials (for example sports equipment) and are sometimes used as a way of delivering drugs into the body.sports equipment delivering drugs What type of bonding is this likely to contain?

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

27. Nanotechnology Questions 1.What is nanotechnology? 2.Describe two uses of nanotechnology. 3.What is buckmister fullerene? How is it useful? 4.What are the concerns about the use of nanotechnology?