Smartphone fluid sensors to detect pregnancy, STDs, diabetes

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Kort Bremer and Bernhard Roth at the Hanover Centre for Optical Technologies are developing lab-on-a-chip devices for smartphones to monitor blood, urine, saliva, sweat or breath.  This could enable phone based detection and monitoring of pregnancy, STDs, or diabetes, among other applications.

The surface plasmon resonance sensors  detect biomolecular interactions when polarized light strikes an electrically conducting surface at the interface between two media,