TruTags, each barely visible to the naked eye, appear iridescent when they catch the light. Pictured are hundreds of TruTags in an area about the size of the head of a pin.
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Cellular Bioengineering staff work in lab.
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A gram or so of TruTags on a screen mesh. Each TruTag contains a customer-specific code for tracking the authenticity of the product.
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Trutag's ‘spectral barcodes’ can be measured via a portable spectrometer-based optical reader.
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The inert and edible TruTag, used here on the surface of a pill, can be read with the portable spectrometer through the blister-pack to confirm the medication's authenticity.
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Spectral signatures can be individually tailored. Two examples here illustrate fine control of spectral peak amplitude.
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