- Nano = one thousand milionth
- Refers to structures that are 1-100nm in size, of the order of a few hundred atoms
- Nanoparticles show properties different from those for the same materials in bulk and have a high surface area to volume ratio,
Uses: coatings, cosmetics such as suntan creams and deodorants, medicine - delivering drugs, sport, silver nanoparticles are antibacterial
Development: new computers, new catalysts, highly selective sensors, stronger and lighter construction materials
Risks: breathing in tiny particles could damage lungs, could enter the bloodstream, could have unpredictable effects in cosmetics
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