All counterfeit articles
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ResearchFirst colour-changing crystal glow could make for safer banknotes
New type of blue-to-orange luminescence discovered in organic material
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ResearchDawn of the atomic age helps carbon dating detect forged art
Spike in radiocarbon from nuclear bomb tests harnessed to detect fakes
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ResearchEncryption using carbon-13
New technique encrypts materials by altering levels of carbon-13 at regiospecific atoms
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ResearchNext-generation invisible ink revealed
Reversible reaction transforms MOF messages into glowing perovskite crystals
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