P A Sermon
Nanomaterials Laboratory, UK
Title: Design of forensic nano-taggants with an unmistakable fingerprint
Biography
Biography: P A Sermon
Abstract
Selected functionalised markers, tags and taggants with unmistakable fingerprints and useful optical, colorimetric and fluorometric properties can be incorporated into products and packaging to prevent and detect fraud or counterfeiting. They are forensically useful for banknotes, textiles, inks, cigarettes, spirits, medicines, pharmaceuticals, fuels, automotive parts and consumer goods. It is claimed that they have not been counterfeited and do not affect the product specification or introduce adulteration. They can also be used to define environmental forensics or explosive traceability. Some taggants are molecular (example volatiles for inclusion in illicit drugs); others are microscopic nanoengineered particles. These can be multi-layered, bar coded or emit from the UV to the IR. In these entire applications one requires taggant uniqueness and detectability. We describe here microscopic uniquely-labelled forensic taggants with tightly-defined compositions, a forensically-recognizable morphology, an optical response and tuneable transferability. We outline their use in forensic coatings to deter gun crime
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