A high-resolution, nanomembrane-based, thermal diffusivity biosensor for living cells

Rami T. Elafandy (Inventor), Boon S. Ooi (Inventor)

Research output: Patent


A method for measuring thermal diffusivity/conductivity of a microscale sample includes placing a metallic disk atop the sample, and disposing a nanomembrane over the sample and over the metallic disk so that the nanomembrane, so that the metallic disk, the nanomembrane and the sample are in thermal equilibrium with one another. A laser beam is directed to fall onto the nanomembrane over the sample, while a radiation sensor is operated to detect photoluminescent radiation emitted by the nanomembrane in response to the laser beam. A spectral shift in the detected photoluminescent radiation emitted by the nanomembrane is determined, and thermal diffusivity/conductivity is calculated from the determined spectral shift of the photoluminescence.
Original languageEnglish (US)
Patent numberWO 2017125866 A1
StatePublished - Jul 27 2017

Cite this