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REVISION CARDS - NANOMATERIALS | ||
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1. WHAT ARE NONOMATERIALS ? A single particle of a nanomaterial, has an average size between 1 to 100 nanometres (nm), which is extremely small. 1 nano is regarded as equal to the distance across three atoms. Some nanomaterials are special coatings use to protect surfaces and resist damage. They can be used on; Sporting equipment: Golf clubs, tennis racquets, lacrosse sticks, socks and phone displays.
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2. NANO-CRYSTALLINE MATERIALS These are materials with a nano-grain size of less than 100nm.
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3. QUANTUM DOTS Quantum Dots are minute particles with unparalleled electronic properties, sometimes referred to as semiconducting nanocrystals.
Each liquid below, has a different proportion of two types of semiconducting nano-crystals, dissolved in a liquid. As a result, a range of photoluminescent colours are produced. They have a potential role in medicine, as sensors inside the human body.
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1. What are nanomaterials? Include a general description of their use. 4 marks | ||
1. Describe one detailed use of a nanomaterial. See cards 2 and 3. 4 marks | ||
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