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A HIGH-RESOLUTION, NANOMEMBRANE-BASED, THERMAL DIFFUSIVITY BIOSENSOR FOR LIVING CELLS
A HIGH-RESOLUTION, NANOMEMBRANE-BASED, THERMAL DIFFUSIVITY BIOSENSOR FOR LIVING CELLS
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机译:高分辨率,基于纳米薄膜的热扩散生物传感器,用于活细胞
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摘要
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.
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