The University of Queensland

Paul Edward Shaw

Paul Burn

Paul Leslie Burn

Shengqiang Fan

Paul Meredith

The present invention relates to an optical sensing element for detection of a narcotic, the optical sensing element comprising a fluorescent sensing compound provided on a substrate, wherein emission of the fluorescent sensing compound is quenched in the presence of the narcotic, and wherein the fluorescent sensing compound is non-polymeric and comprises an electron donor moiety, an electron acceptor moiety and a moiety that influences solubility of the compound in a solvent. Sensing devices incorporating the sensing element and methods of detecting narcotics are also described.

Detection method

An optical sensing element for use in the detection of hydrogen peroxide includes a sensing compound provided as a coating on a substrate. The sensing compound, on exposure to hydrogen peroxide, forms a luminescent reporter compound when excited with stimulating radiation at a predetermined wavelength that the sensing compound does not absorb.

A sensing element for use in the detection of an analyte based on a luminescent response, the sensing element comprising a luminescent triaryl amine compound provided as a coating on a substrate.

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Chelmer, Australia

Paul Edward Shaw