Nanoparticles-Based Taggant Systems and Methods
AssigneeWorcester Polytechnic Institute
InventorMing Su
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Abstract
Coding systems may include an object and a taggant linked to the object, the taggant comprising one or more types of phase change nanoparticles, each type of phase change nanoparticles having a phase change temperature different from a phase change temperature of other types of phase change nanoparticles, wherein, when the taggant is thermally scanned, different phase change temperatures result in one or more predefined melting peaks forming a code that represents information particular to the object.
Claims20
A coding system comprising:
- an object;
- and
- a taggant linked to the object, the taggant comprising one or more types of phase change nanoparticles, each type of phase change nanoparticles having a phase change temperature different from a phase change temperature of other types of phase change nanoparticles, wherein, when the taggant is thermally scanned, different phase change temperatures result in one or more predefined melting peaks forming a code that represents information particular to the object.
A method for identifying an object, the method comprising:
- thermally scanning a sample of an object including a taggant, the taggant comprising a plurality of phase change nanoparticles of one or more types having different phase change temperatures;
- generating a thermal readout of the sample of the object based on the one or more types of the nanoparticles of the taggant;
- and
- identifying the object by matching the thermal readout of the sample of the object with a predetermined thermal readout in a library of thermal readouts.
A method of tagging an object, the method comprising:
- linking to an object a taggant comprising a plurality of phase change nanoparticles of one or more types having different phase change melting peak temperatures.
Dependencies are inferred from the claim text.