J.J. Dubowski, X. Ding, E. Frost and E. Escher, “Quantum dot template for fast and simultaneous detection of different infectious agents”, International patent application (Ref. 060310 8240-210, March 10, 2006).
A method and a device for detecting the presence of a predetermined (biological) substance, in which a quantum dot is produced on a substrate. The quantum dot emits a radiation at a predetermined wavelength, and is covered with a surface layer to which the predetermined substance attaches. A deviation of the value of a parameter related to the radiation is produced when the predetermined substance attaches to the surface layer. This deviation can be detected to thereby sense the presence of the predetermined substance. We have already tested this method and demonstrated a successful detection of the Influenza A virus.

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