Nanocrystal taggants

Details Nanocrystal taggants Nanocrystal taggants

2011-03-22

2011-03-22

Moran, Marjorie (Department: 1631)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Biological or biochemical

C702S022000, C435S006120

Reexamination Certificate

active

07912653

ABSTRACT:
The compositions, methods and systems of the invention provide nanocrystal taggants for unobtrusive monitoring of objects. Objects can be tagged with nanocrystal taggant compositions for detection of informative invisible emissions on illumination with appropriate excitation wavelengths. Authentication schemes are also provided that takes advantage of the unique emission and absorption characteristics of nanocrystals to create a unique spectral code that is far more difficult to decode and replicate than those previously employed.

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