Scientists here have developed a new substance that can be used to prevent forging of passports and banknotes.
Scientists have developed pigment-free polymer materials, virtually opening the way to new, tamper-proof passports and banknotes.
The polymers do not use pigments but instead exhibit intense colour due to their structure, similar to the way nature creates colour for beetle shells and butterfly wings.
The chemistry involved in making the polymers renders it very difficult for fraudsters to copy, ideally suiting the polymers for use on passports or banknotes.
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