Nanomaterials are those in which a single particle measures between 1 and 100 nanometres (1 nm = 10–9m). These materials often have remarkable properties and are an active area of research.
Many living organisms have evolved the ability to manipulate light. For example, the multicoloured wings of butterflies (Figure 1) have inspired new nanomaterial coatings that produce vivid colours. You can read more about these coatings here:
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