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| Questão | Responda |
| Nanoscience- the study of small nanoparticles. | Each particle is very tiny- between 1 and 100 nanometres. |
| Nanoparticles have different properties from bulk material. | They have a much larger surface area. |
| Nanosilver- >hospital operating >Wound dressing | This is because it has anti-bacterial and anti-fungal effects. |
| Nanoparticles in Fridge lining | Helps food stay safe to eat. |
| New Catalysts- used to speed up chemical reactions. | Nanoparticles are not used up in the reaction. |
| Modern Suncream | lotion can be applied but particles are so small they are invisible to us. |
| Harmful effects. | Worries, because they are unknown. |
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